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CSC1109_Tutorials
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### Java template
# Compiled class file
*.class
# Log file
*.log
# BlueJ files
*.ctxt
# Mobile Tools for Java (J2ME)
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# Package Files #
*.jar
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hs_err_pid*
replay_pid*
### JetBrains template
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
# User-specific stuff
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# AWS User-specific
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cmake-build-*/
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## Core latex/pdflatex auxiliary files:
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# Uncomment the next line to have this generated file ignored.
#*Notes.bib

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package Exam;
import java.util.*;
public class FIB {
public static int fib(int a){
if(a == 0 || a == 1) return a;
return fib(a-1) + fib(a-2);
}
public static int fac(int a){
if (a <= 1) return a;
else return a * fac(a - 1);
}
public static int[] mergesort(int[] arr){
if (arr.length <= 1) {
return arr;
}
int mid = arr.length >> 1;
int[] left = new int[mid];
int[] right = new int[arr.length - mid];
for (int i = 0; i < mid; i++){
left[i] = arr[i];
}
for (int i = mid; i < arr.length; i++){
right[i - mid] = arr[i];
}
left = mergesort(left);
right = mergesort(right);
return merge(left, right);
}
public static int[] merge(int[] a, int[] b){
int aindex = 0, bindex = 0;
int [] result = new int[a.length + b.length];
int aSize = a.length, bSize = b.length;
while (aindex < a.length && bindex < bSize){
if (a[aindex] < b[bindex]){
result[aindex + bindex] = a[aindex];
aindex++;
}
else{
result[aindex + bindex] = b[bindex];
bindex++;
}
}
while (aindex < aSize){
result[aindex + bindex] = a[aindex];
aindex++;
}
while (bindex < bSize){
result[aindex + bindex] = b[bindex];
bindex++;
}
return result;
}
public static ArrayList<Integer> mergesort(ArrayList<Integer> arr){
if (arr.size() <= 1) {
return arr;
}
int mid = arr.size() >> 1;
ArrayList<Integer> left = new ArrayList<>();
ArrayList<Integer> right = new ArrayList<>();
for (int i = 0; i < mid; i++){
left.add(arr.get(i));
}
for (int i = mid; i < arr.size(); i++){
right.add(arr.get(i));
}
left = mergesort(left);
right = mergesort(right);
return merge(left, right);
}
public static ArrayList<Integer> merge(ArrayList<Integer> a, ArrayList<Integer> b){
ArrayList<Integer> c = new ArrayList<>();
int aindex = 0, bindex = 0;
int aSize = a.size(), bSize = b.size();
while (aindex < aSize && bindex < bSize){
if (a.get(aindex) < b.get(bindex)){
c.add(a.get(aindex));
aindex++;
}
else{
c.add(b.get(bindex));
bindex++;
}
}
while (aindex < aSize){
c.add(a.get(aindex));
aindex++;
}
while (bindex < bSize){
c.add(b.get(bindex));
bindex++;
}
return c;
}
public static int BSearc(int[] arr, int num){
int low = 0, high = arr.length;
while (low <= high){
int mid = (low + high) >> 1;
if (arr[mid] == num) return mid;
else if (arr[mid] < num) low = mid + 1;
else high = mid - 1;
}
return -1;
}
public static void main(String[] args) {
int[] arr = {1, 2, 3, 4, 5, 6, 7, 8, 9,10};
int num = 4;
System.out.println(BSearc(arr, num));
}
}
class person{
private String name;
private int age;
public person(String name, int age){
System.out.println("Person constructor");
this.name = name;
this.age = age;
}
public person(String name){
this(name, 0);
}
public person(int age){
this("John", age);
}
public String getName(){
return this.name;
}
public void setName(String name) {
this.name = name;
}
public int getAge(){
return this.age;
}
public void setAge(int age) {
this.age = age;
}
}
class Student extends person{
private int GPA;
private double height;
public Student(){
this("John", 0, 0);
}
public Student(String name, int age, int GPA){
super(name, age);
this.GPA = GPA;
}
public Student(double height){
this("John", 0, 0);
this.height = height;
System.out.println("Student height: " + height);
}
private Student(String name, int GPA){
this(name, 0, GPA);
}
public Student(int GPA, int age, String name){
this(name, age, GPA);
}
public Student(int age, String name){
this(name, age, 0);
}
public void setAge(int age){
System.out.printf("Student age: %d \n", age);
super.setAge(age);
}
public static void main(String... args){
var s = new Student(3);
System.out.println(s.getAge());
}
}
class myexception extends Exception{
public myexception(String message){
super(message);
}
}

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package Exam;
import java.util.ArrayList;
public abstract class shapes {
private int length, breadth, radius;
public shapes(){
print("Here");
}
public shapes(int length, int breadth){
this.length = length;
this.breadth = breadth;
}
public shapes(int radius){
this.radius = radius;
}
public shapes(float radius){
this.radius = (int) radius;
}
public int getArea(){
return this.length * this.breadth;
}
public float getCircleArea(){
return (float) (this.radius * this.radius * 3.14);
}
public int getPerimeter(){
return 2 * (this.length + this.breadth);
}
public float getCirclePerimeter(){
return (float) (2 * this.radius * 3.14);
}
public static int shape(int length, int breadth){
return length * breadth;
}
public static double shape(double radius){
return radius * radius * 3.14;
}
public <t> t shape(t a){
return a;
}
// toString() method
public String toString(){
// System.out.println("Length: " + this.length + " Breadth: " + this.breadth);
if (this.length == 0 && this.breadth == 0){
return "Radius: " + this.radius;
}
else {
return "Length: " + this.length + " Breadth: " + this.breadth;
}
}
public static <t> void print() {
print(null);
}
public static <t> void print(t a){
System.out.println(a);
}
}
class shape2 extends shapes{
public shape2(){
}
public shape2(int length, int breadth){
super(length, breadth);
}
public String toString(){
print(super.toString());
return"This is shape2 class";
}
public static void main(String... args) {
shape2 s = new shape2();
// System.out.println(s);
try{
print("Hello");
}
finally {
print("Finally");
}
}
}
class testMarks {
// Generic score
public static String getScore(double score){
// double score;
//
// try {
// score = Double.parseDouble(a.toString());
// }
// catch (Exception e){
// return "E";
// }
if (75 <= score && score <= 100) {
return "A";
} else if (60 <= score && score < 75) {
return "B";
} else if (40 <= score && score < 60) { // 40 <= score < 60
return "C";
} else if (0 <= score && score < 40) {
return "F";
}
else {
return "E";
}
}
public String toString(){
return "This is testMarks class";
}
public static void main(String... args) {
testMarks t = new testMarks();
System.out.println(t);
System.out.println(getScore(90));
}
}
class rec{
public void printname(){
System.out.println("Val a");
}
}
class sq extends rec{
public void printname(){
System.out.println("Val b");
}
}
class test3{
public static void main(String... args) {
sq s = new sq();
s.printname();
}
}

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package Exam;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class testMarksTest {
@Before
public void setUp(){
System.out.println("Test Start");
}
@After
public void tearDown(){
System.out.println("Test End");
}
@Test
public void testGetGrade() {
// Test normal (Typical Testing)
assertEquals("Wrong Grade", "A", testMarks.getScore(90));
assertEquals("Wrong Grade", "B", testMarks.getScore(70));
assertEquals("Wrong Grade", "C", testMarks.getScore(50));
assertEquals("Wrong Grade", "F", testMarks.getScore(30));
// Test boundary 3 Cases
assertEquals("Wrong Grade", "A", testMarks.getScore(76));
assertEquals("Wrong Grade", "A", testMarks.getScore(75));
assertEquals("Wrong Grade", "B", testMarks.getScore(74));
// Test boundary 3 Cases
assertEquals("Wrong Grade", "B", testMarks.getScore(61));
assertEquals("Wrong Grade", "B", testMarks.getScore(60));
assertEquals("Wrong Grade", "C", testMarks.getScore(59));
// Test Illegal Argument
assertEquals("Wrong Grade", "E", testMarks.getScore(10000));
assertEquals("Wrong Grade", "E", testMarks.getScore(-1));
assertEquals("Wrong Grade", "E", testMarks.getScore(100.1));
}
}

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MIT License
Copyright (c) 2023 Woon Jun Wei
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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package Playground;
import java.util.ArrayList;
public class ArraylistTest {
public static void main(String[] args) {
ArrayList<Integer> intList = new ArrayList<Integer>();
intList.add(1);
intList.add(4);
intList.add(2);
intList.add(9);
intList.add(3);
System.out.println("Before Sort");
System.out.println(intList);
System.out.println("\nBubble Sort\n");
sort(intList);
System.out.println("After Sort");
System.out.println(intList);
System.out.println("Max: " + max(intList));
}
public static int max(ArrayList<Integer> intList) {
int i, max = intList.get(0);
for (i = 0; i< intList.size(); i++){
if (intList.get(i) > max){
max = intList.get(i);
}
}
return max;
}
public static ArrayList sort(ArrayList<Integer> intList){
for (int i = 0; i< intList.size() -1; i++){
for (int j = 0; j < intList.size() - i - 1; j++){
if (intList.get(j) > intList.get(j + 1)) {
int temp = intList.get(j);
intList.set(j, intList.get(j + 1));
intList.set(j + 1, temp);
}
}
}
return intList;
}
}

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package Playground.ExceptionsP;
public class CalException extends Throwable{
private double amount;
public CalException(double amount){
this.amount = amount;
}
public CalException(String message, double amount){
super(message);
this.amount = amount;
}
public double getAmount(){
return amount;
}
public String toString(){
return "CalException: " + amount;
}
}
class Calculator{
private int A, B;
public Calculator(int A, int B){
this.A = A;
this.B = B;
}
public int sum() throws CalException{
if (A + B > 100){
throw new CalException("Sum is greater than 100", A + B);
}
return A + B;
}
public int sub() throws CalException{
if (A - B < 0){
throw new CalException("Sub is less than 0", A - B);
}
return A - B;
}
public float div() throws CalException{
if (B == 0){
throw new CalException("Div by 0", 0);
}
return A / B;
}
public static void main(String[] args){
Calculator c = new Calculator(10, 0);
try {
System.out.println(c.sum());
System.out.println(c.sub());
System.out.println((float) c.div());
} catch (CalException e) {
System.out.println(e.getMessage());
System.out.println(e.getAmount());
System.out.println(e.toString());
}
finally{
System.out.println("Finally");
}
}
}

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package Playground.ExceptionsP;
import org.junit.After;
import org.junit.Before;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
class CalculatorTest {
Calculator c = new Calculator(10, 0);
@Test
void sum() throws CalException {
System.out.println("Sum: " + c.sum());
assertEquals(10, c.sum());
}
@Test
void sub() throws CalException {
assertEquals(10, c.sub());
}
@Test
void div() throws CalException {
assertThrows(CalException.class, () -> c.div());
}
@After
public void tearDown() throws Exception {
}
}

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package Playground.genericP;
import java.util.ArrayList;
public class genericsPractice {
public static void main(String[] args){
ArrayList<Test> list = new ArrayList<>();
Test<String> t = new Test<>();
Test<String> r = new Test<>();
t.set("Hello");
r.set("World");
list.add(t);
list.add(r);
for (Test c : list){
System.out.println(c.get());
}
}
}
class Test<T>{
private T t;
public void set(T t){
this.t = t;
}
public T get(){
return t;
}
public static void main(String[] args) {
Test<Float> i = new Test<>();
i.set(10.0f);
System.out.println(i.get());
}
}

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package Playground.sqliteTest;
import java.sql.*;
public class sqliteTest {
public static void main(String[] args){
String connectionURL = "jdbc:sqlite:src/Playground/sqliteTest/test.db";
// Connect to Database
try{
Connection conn = DriverManager.getConnection("jdbc:sqlite:src/Playground/sqliteTest/test.sqlite");
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE IF NOT EXISTS test (name TEXT)");
ResultSet rs = stmt.executeQuery("SELECT * FROM test");
while(rs.next()){
System.out.println(rs.getString("name"));
}
} catch (SQLException e){
System.out.println(e.getMessage());
}
}
}

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package Playground.testcase;
import java.util.ArrayList;
public class grades {
// public static String getGrade(int score){
// return getString(score);
// }
public static void main(String[] args){
ArrayList <Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
int a = list.get(0);
System.out.println(a);
}
}
abstract class test{
public abstract void test1();
}
abstract class test2 extends test{
public void test1(){
System.out.println("test");
}
}

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Playground/testcase/gradesTest.java Normal file
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package Playground.testcase;
import org.junit.After;
import org.junit.Test;
import static org.junit.Assert.*;
public class gradesTest {
// @Test
// public void testGetGrade() {
// // Test normal (Typical Testing)
// assertEquals("Wrong Grade", grades.getGrade(90), "A");
// assertEquals("Wrong Grade", grades.getGrade(70), "B");
// assertEquals("Wrong Grade", grades.getGrade(50), "C");
// assertEquals("Wrong Grade", grades.getGrade(30), "F");
//
// // Test boundary 3 cases
// assertEquals("Wrong Grade", grades.getGrade(76), "A");
// assertEquals("Wrong Grade", grades.getGrade(75), "A");
// assertEquals("Wrong Grade", grades.getGrade(74), "B");
//
// // Test boundary 3 cases
// assertEquals("Wrong Grade", grades.getGrade(61), "B");
// assertEquals("Wrong Grade", grades.getGrade(60), "B");
// assertEquals("Wrong Grade", grades.getGrade(59), "C");
//
// // Test Illegal Argument
// assertEquals("Wrong Grade", grades.getGrade(10000), "E");
// }
//
// @Test
// public void testBoundaryofA(){
// assertEquals("A", grades.getGrade(76), "Wrong Grade");
// assertEquals("A", grades.getGrade(75), "Wrong Grade");
// assertNotEquals("A", grades.getGrade(74), "Wrong Grade");
// }
//
// @Test
// public void testIllegalArgument(){
// assertEquals("E", grades.getGrade(10000), "Wrong Grade");
// assertEquals("E", grades.getGrade(-1), "Wrong Grade");
// }
//
// @After
// public void tearDown() throws Exception {
// }
}

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package Playground.testcase;
abstract class tmp extends grades{
public void test1(){
System.out.println("test");
}
public static void main(String[] args){
tmp t = new tmp() {
};
t.test1();
}
}

19
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package Practice.School;
public class Chile extends Parent {
public Chile(){
int age = super.getAge();
}
public void print(){
System.out.println("Hello child");
}
public static void main(String[] args) {
Chile chile = new Chile();
System.out.println(chile.getAge());
}
}

10
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package Practice.School;
public class Dataset {
int[] id = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
public int[] getId() {
return id;
}
}

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package Practice.School.Developers;
public class BackendDeveloper extends Developer{
private String language;
private String name;
public BackendDeveloper(String name, int age, String job, String device, String lan){
super(name, age, job, device);
this.name = name;
this.language = lan;
}
public BackendDeveloper(){
this("John", 20, "Backend Developer", "Mac", "Java");
}
@Override
public void code() {
System.out.println("My name is " + name + " and I am a " + job + " and I am coding in " + language);
}
@Override
public void debug() {
System.out.println("I am debugging in " + language);
}
public void code(String language){ // Overloading
System.out.println("I am coding in " + language);
}
}

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package Practice.School.Developers;
import Practice.School.doWork;
import Practice.School.human;
public abstract class Developer extends human implements doWork {
private String Device;
public Developer(String name, int age, String job, String device){
super(name, age, job);
this.Device = device;
}
public Developer(String device){
super("John", 20, "Developer");
this.Device = device;
}
public Developer(){
super("John", 20, "Developer");
this.Device = "Mac";
}
public void doWork(String WorkType){
System.out.println("I am doing " + WorkType + " on my " + Device);
}
public void doWork(){ // Overloading
System.out.println("I am doing work");
}
public void rest() {
System.out.println("I am on a break");
}
public abstract void code();
public abstract void debug();
}

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package Practice.School;
import Practice.School.Developers.BackendDeveloper;
public class HumanMainClass {
public static void main(String[] args){
//Polymorphism
human h1 = new student("John", 20, "UoG", 5.00);
System.out.print("H1 starts here: ");
h1.sayHello(); //From Student
System.out.println();
((student) h1).doWork(); //I am doing work
((student)h1).getGPA(); // Cast to student to access GPA
BackendDeveloper b1 = new BackendDeveloper("John", 20, "UoG", "Mac", "Java");
human h2 = new BackendDeveloper("John", 20, "Dev", "Mac", "Java");
System.out.println("\nH2 starts here");
// Casting to access methods
((BackendDeveloper)(h2)).code(); //Overriding From abstract class Developer
((BackendDeveloper)(h2)).code("Java"); //Overloading
((BackendDeveloper)(h2)).debug();
((BackendDeveloper)(h2)).doWork("Project");
((BackendDeveloper)(h2)).rest();
h2.sayHello(); //Using polymorphism
// polymorphism
System.out.println("\nB1 starts here");
b1.code();
b1.debug();
b1.doWork("Project");
b1.rest();
//BackendDeveloper b = new BackendDeveloper("John", 20, "UoG", "Mac", "Java");
BackendDeveloper b = new BackendDeveloper();
b.doWork("game");
Dataset DA = new Dataset();
int [] x = DA.getId();
for(int i = 0; i < x.length; i++){
System.out.println(x[i]);
}
//Output:
// H1 starts here: From Student
// I am doing work
// My GPA is 5.0
//
// H2 starts here
// My name is John and I am coding in Java
// I am coding in Java
// I am debugging in Java
// I am doing Project on my Mac
// I am on a break
// Hello, my name is John and I am 20 years old.
//
// B1 starts here
// My name is John and I am coding in Java
// I am debugging in Java
// I am doing Project on my Mac
// I am on a break
}
}

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package Practice.School;
public class Parent {
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
private int age;
public Parent(){
age = 10;
}
public void print(){
System.out.println("Hello parent");
}
}

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package Practice.School;
public interface doWork {
static final int MAX_WORK = 10;
public void doWork(String WorkType);
public void rest();
}

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package Practice.School;
public class human {
private String name;
protected int age;
protected String job;
public human(String name, int age, String job){
this.name = name;
this.age = age;
this.job = job;
}
public void sayHello(){
System.out.println("Hello, my name is " + name + " and I am " + age + " years old.");
}
}

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package Practice.School;
public class student extends human implements doWork{
private String School;
private double GPA;
public student(String name, int age, String school, double GPA){
super(name, age, "Student");
this.School = school;
this.GPA = GPA;
}
public void sayHello(){//Override
System.out.print("From Student");
}
public void doWork() {
System.out.println("I am doing work");
}
@Override
public void doWork(String WorkType) {
System.out.println("I am doing " + WorkType);
}
public void rest() {
System.out.println("I am resting");
}
public void getGPA(){
System.out.println("My GPA is " + GPA);
}
}

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package Practice.test;
public class human {
private String name;
public human(String name){
this.name = name;
}
public String getName(){
return this.name;
}
}
class Student extends human{
private int id;
public Student(String Name, int id){
super(Name);
this.id = id;
}
public int getId(){
return this.id;
}
public static void main (String[] args){
Student st = new Student("John", 123);
System.out.println(st.getName());
System.out.println(st.getId());
}
}

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package Practice.test2;
import java.util.InputMismatchException;
import java.util.Scanner;
public class ExceptionalCalculator {
private double result, num1, num2;
public ExceptionalCalculator(double num1, double num2){
this.num1 = num1;
this.num2 = num2;
}
public double add() throws IllegalArgumentException{
if (num1 < 0 || num2 < 0){
throw new IllegalArgumentException("Numbers cannot be negative");
}
return num1 + num2;
}
public double div() throws ArithmeticException{
if (num1 == 0 || num2 == 0){
throw new ArithmeticException("Numbers cannot be zero");
}
return num1 / num2;
}
public String toString(){
return "The numbers are " + num1 + " and " + num2 + " and the result is " + result + ".";
}
public static void main(String[] args) {
// ExceptionalCalculator calc = new ExceptionalCalculator(5, 0);
// try {
// System.out.println(calc.add());
// } catch (IllegalArgumentException e) {
// System.out.println(e.getMessage());
// }
//
// try{
// System.out.println(calc.div());
// }
// catch (ArithmeticException e){
// System.out.println(e.getMessage());
// }
// finally{
// System.out.println("Program ended");
// System.out.print(calc);
// }
Scanner sc = new Scanner(System.in);
try{
int num = sc.nextInt();
if (num < 0){
throw new Exception("Number cannot be negative");
}
}
catch (Exception e){
System.out.println(e.getMessage());
}
finally{
System.out.println("Program ended");
}
}
}

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package Practice.test3;
public class findmax {
// Get max value from array
public static int findMax(int[] arr){
int max = 0;
for (int i = 1; i < arr.length; i++){
if (arr[i] > arr[max]){
max = i;
}
}
return max;
}
}
class Counter{
public Counter(int count) {
this.count = count;
}
private int count = 0;
public void increment(){
count++;
}
public int getCount(){
return count;
}
public int decrement(){
return count--;
}
}

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package Practice.test3;
import org.junit.Before;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.Assert.*;
class findmaxTest {
// @Test
// void findMaxFromArray() {
// int[] arr = {1,2,3,4,5};
// assertEquals(4, findmax.findMax(arr));
// }
Counter c = null;
@Before
public void setUp(){
System.out.println("Before");
c = new Counter(0);
}
@Test
public void testIncrement(){
//Counter c = new Counter();
c.increment();
assertEquals(1, c.getCount());
}
}

3
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# CSC 1109 Labs
This is a collection of my labs and submissions for future references.

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
% Image path
\graphicspath{{images/}}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 11}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=python,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 11}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:calculator},caption=calculator.py]
class calculator:
def __init__(self, x, y):
self.x = x
self.y = y
def adder(self):
print("The sum is: " + str(self.x + self.y))
return self.x + self.y
def subtractor(self):
print("The difference is: " + str(self.x - self.y))
return self.x - self.y
def multiplier(self):
print("The multiplication is: " + str(self.x * self.y))
return self.x * self.y
def divider(self):
print("The quotient is: " + str(self.x / self.y))
return self.x / self.y
def clear(self):
self.x = 0
self.y = 0
print("Numbers are reset to be zero")
return self.x, self.y
if __name__ == "__main__":
x = int(input("Enter the first number: "))
y = int(input("Enter the second number: "))
calc = calculator(x, y)
calc.adder()
calc.subtractor()
calc.multiplier()
calc.divider()
calc.clear()
\end{lstlisting}
\begin{lstlisting}[label={list:calculator_output},caption=calculator.py output]
# Output 1
Enter the first number: 10
Enter the second number: 5
The sum is: 15
The difference is: 5
The multiplication is: 50
The quotient is: 2.0
Numbers are reset to be zero
# Output 2
Enter the first number: 100
Enter the second number: 5
The sum is: 105
The difference is: 95
The multiplication is: 500
The quotient is: 20.0
Numbers are reset to be zero
\end{lstlisting}
\end{document}

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package Week10_Lab;
import java.util.Scanner;
public class calculator {
private int input1;
private int input2;
private int result;
public calculator(int input1, int input2){
this.input1 = input1;
this.input2 = input2;
}
public calculator(){
this(0,0);
}
public int addr(int input1, int input2){
this.result = input1 + input2;
return this.result;
}
public int subtractor(int input1, int input2){
this.result = input1 - input2;
return this.result;
}
public int multiplier(int input1, int input2){
this.result = input1 * input2;
return this.result;
}
public int divider(int input1, int input2){
this.result = input1 / input2;
return this.result;
}
public void clear(){
this.result = 0;
}
public static void main(String[] args) {
calculator c = new calculator();
Scanner sc = new Scanner(System.in);
do {
System.out.println("Enter 1 for addition");
System.out.println("Enter 2 for subtraction");
System.out.println("Enter 3 for multiplication");
System.out.println("Enter 4 for division");
System.out.println("Enter 5 to clear");
System.out.println("Enter 6 to exit");
System.out.println("Enter your choice: ");
int choice = sc.nextInt();
switch (choice) {
case 1:
System.out.println("Enter the first number: ");
int input1 = sc.nextInt();
System.out.println("Enter the second number: ");
int input2 = sc.nextInt();
System.out.println("The Addition of " + input1 + " and " + input2 + " is " + c.addr(input1, input2));
break;
case 2:
System.out.println("Enter the first number: ");
input1 = sc.nextInt();
System.out.println("Enter the second number: ");
input2 = sc.nextInt();
System.out.println("The Subtraction of " + input1 + " and " + input2 + " is " + c.subtractor(input1, input2));
break;
case 3:
System.out.println("Enter the first number: ");
input1 = sc.nextInt();
System.out.println("Enter the second number: ");
input2 = sc.nextInt();
System.out.println("The Multiplication of " + input1 + " and " + input2 + " is " + c.multiplier(input1, input2));
break;
case 4:
System.out.println("Enter the first number: ");
input1 = sc.nextInt();
System.out.println("Enter the second number: ");
input2 = sc.nextInt();
System.out.println("The Division of " + input1 + " and " + input2 + " is " + c.divider(input1, input2));
break;
case 5:
c.clear();
System.out.println("The result is cleared");
break;
default:
System.out.println("Invalid choice");
break;
}
} while (true);
}
}

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class calculator:
def __init__(self, x, y):
self.x = x
self.y = y
def adder(self):
print("The sum is: " + str(self.x + self.y))
return self.x + self.y
def subtractor(self):
print("The difference is: " + str(self.x - self.y))
return self.x - self.y
def multiplier(self):
print("The multiplication is: " + str(self.x * self.y))
return self.x * self.y
def divider(self):
print("The quotient is: " + str(self.x / self.y))
return self.x / self.y
def clear(self):
self.x = 0
self.y = 0
print("Numbers are reset to be zero")
return self.x, self.y
if __name__ == "__main__":
x = int(input("Enter the first number: "))
y = int(input("Enter the second number: "))
calc = calculator(x, y)
calc.adder()
calc.subtractor()
calc.multiplier()
calc.divider()
calc.clear()

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## Question 1
> Which version of the Java SDK did you install?
openjdk-19.0.1
## Question 2
Source code in the folder `src/Week1_Lab`

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 1}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 1}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
Which version of the Java SDK did you install?
\\
I installed `openjdk-19.0.1` with Intellij.
\section*{Question 2}
With reference to the lecture slides (Week 1), Java Program Structure Examples, modify:
\subsection*{Part A}
Example 1, print out console message with “Hello, I am [your name]!”.
\begin{lstlisting}[label={list:first},caption=Part A Source Code.]
public class parta {
public static void main(String[] args) {
System.out.println("Hello, I am Jun Wei");
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:first_output},caption=Part A Output.]
Hello, I am Jun Wei
\end{lstlisting}
\pagebreak
\subsection*{Part B}
Example 3, change the currency variable into the module code you are taking in this trimester, while the switch case will print out the complete module title. E.g.: input CSC1009 > Output “Object-Oriented Programming”
\begin{lstlisting}[label={list:second},caption=Part B Source code.]
import java.util.Scanner;
public class partb {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter module code: ");
String module = sc.nextLine();
switch(module){
case "CSC1109":
System.out.println("Object-Oriented Programming");
break;
case "CSC1108":
System.out.println("Data Structures and Algorithms");
break;
case "INF1006":
System.out.println("Computer Networks");
break;
case "INF1004":
System.out.println("Mathematics 2");
break;
default:
System.out.println("Invalid module code");
break;
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:second_output},caption=Part B Output.]
Enter module code:
CSC1109
Object-Oriented Programming
\end{lstlisting}
\pagebreak
\subsection*{Part C}
Example 4: change the for loop, print out the odd number in descending order starting from 102 and ending with 66
\begin{lstlisting}[label={list:third},caption=Part C Source Code.]
public class partc {
public static void main(String[] args) {
for(int i = 102; i >= 66; i--){
if(i % 2 == 1){
System.out.println(i);
}
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:third_output},caption=Part C Output.]
101
99
97
95
93
91
89
87
85
83
81
79
77
75
73
71
69
67
\end{lstlisting}
\end{document}

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package Week1_Lab;
public class parta {
public static void main(String[] args) {
System.out.println("Hello, I am Jun Wei");
}
}

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package Week1_Lab;
import java.util.Scanner;
public class partb {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter module code: ");
String module = sc.nextLine();
switch(module){
case "CSC1109":
System.out.println("Object-Oriented Programming");
break;
case "CSC1108":
System.out.println("Data Structures and Algorithms");
break;
case "INF1006":
System.out.println("Computer Networks");
break;
case "INF1004":
System.out.println("Mathematics 2");
break;
default:
System.out.println("Invalid module code");
break;
}
}
}

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package Week1_Lab;
public class partc {
public static void main(String[] args) {
for(int i = 102; i >= 66; i--){
if(i % 2 == 1){
System.out.println(i);
}
}
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 2}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 2}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
Develop a program to accept the radius of one circle from the console and output
the area of the circle. Note that to compute the area, the following formula can be used: Area = radius * radius * PI
Define PI as a constant variable with a fixed value 3.14159
\begin{lstlisting}[label={list:first},caption=Question 1 Source Code.]
import java.util.*;
public class q1 {
static final double PI = 3.14159;
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number for radius: ");
double radius = sc.nextDouble();
double area = PI * radius * radius;
System.out.println("The area for the circle of radius " + radius + " is " + area);
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:first_output},caption=Question 1 Output.]
Enter a number for radius: 2.5
The area for the circle of radius 2.5 is 19.6349375
Enter a number for radius: 23
The area for the circle of radius 23.0 is 1661.90111
Enter a number for radius: 7.3
The area for the circle of radius 7.3 is 167.41533109999997
\end{lstlisting}
\pagebreak
\section*{Question 2}
Average calculation for multiple input from keyboard: In this question, you will design a program to accept three number inputs by the user, and display the average of it.
\begin{lstlisting}[label={list:second},caption=Question 2 Source code.]
import java.util.*;
public class q1 {
static final double PI = 3.14159;
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number for radius: ");
double radius = sc.nextDouble();
double area = PI * radius * radius;
System.out.println("The area for the circle of radius " + radius + " is " + area);
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:second_output},caption=Question 2 Output.]
Enter three numbers:10.5
11
11.5
The average of 10.5 11.0 11.5 is 11.0
Enter three numbers:1 2 3
The average of 1.0 2.0 3.0 is 2.0
Enter three numbers:10
11.5 19
The average of 10.0 11.5 19.0 is 13.5
\end{lstlisting}
\pagebreak
\section*{Question 3}
\begin{lstlisting}[label={list:third},caption=Question 3 Source Code.]
public class q3 {
public static void main(String[] args) {
long totalMilliseconds = System.currentTimeMillis();
long totalSeconds = totalMilliseconds/1000;
long currSecond = totalSeconds % 60;
long totalMinutes = totalSeconds / 60;
long currMinute = totalMinutes % 60;
long totalHours = totalMinutes / 60;
long currrHour = totalHours % 24;
System.out.println("Current time is " + currrHour + ":" + currMinute + ":" + currSecond + " GMT");
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:third_output},caption=Question 3 Output.]
Current time is 6:49:27 GMT
\end{lstlisting}
\pagebreak
\section*{Question 4}
Chinese Zodiac Calculation: Now let us write a program to find out the Chinese Zodiac sign for
a given year. The Chinese Zodiac is based on a twelve-year cycle, with each year represented
by an animal- monkey, rooster, dog, pig, rat, ox, tiger, rabbit, dragon, snake, horse, or sheep—
in this cycle, as shown in Figure 2.
\\
Note that year \% 12 determines the Zodiac sign. 1900 is the year of the rat because 1900 \%
12 is 4. Listing 3.9 gives a program that prompts the user to enter a year and displays the
\begin{lstlisting}[label={list:fourth},caption=Question 4 Source Code.]
import java.util.*;
public class q4 {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
System.out.print("Enter a year: ");
int year = sc.nextInt();
switch(year % 12){
case 0:
System.out.println("monkey");
break;
case 1:
System.out.println("rooster");
break;
case 2:
System.out.println("dog");
break;
case 3:
System.out.println("pig");
break;
case 4:
System.out.println("rat");
break;
case 5:
System.out.println("ox");
break;
case 6:
System.out.println("tiger");
break;
case 7:
System.out.println("rabbit");
break;
case 8:
System.out.println("dragon");
break;
case 9:
System.out.println("snake");
break;
case 10:
System.out.println("horse");
break;
case 11:
System.out.println("sheep");
break;
default:
System.out.println("Invalid input");
break;
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:fourth_output},caption=Question 4 Output.]
Enter a year: 1963
rabbit
Enter a year: 1877
ox
Enter a year: 2000
dragon
\end{lstlisting}
\end{document}

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package Week2_Lab;
import java.util.*;
public class q1 {
static final double PI = 3.14159;
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number for radius: ");
double radius = sc.nextDouble();
double area = PI * radius * radius;
System.out.println("The area for the circle of radius " + radius + " is " + area);
}
}

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Week2_Lab/q2.java Normal file
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package Week2_Lab;
import java.util.*;
public class q2 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter three numbers:");
double num1 = sc.nextDouble();
double num2 = sc.nextDouble();
double num3 = sc.nextDouble();
double average = (num1 + num2 + num3) / 3;
System.out.println("The average of " + num1 + " " + num2 + " " + num3 + " is " + average);
}
}

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Week2_Lab/q3.java Normal file
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package Week2_Lab;
public class q3 {
public static void main(String[] args) {
long totalMilliseconds = System.currentTimeMillis();
long totalSeconds = totalMilliseconds/1000;
long currSecond = totalSeconds % 60;
long totalMinutes = totalSeconds / 60;
long currMinute = totalMinutes % 60;
long totalHours = totalMinutes / 60;
long currrHour = totalHours % 24;
System.out.println("Current time is " + currrHour + ":" + currMinute + ":" + currSecond + " GMT");
}
}

54
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package Week2_Lab;
import java.util.*;
public class q4 {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
System.out.print("Enter a year: ");
int year = sc.nextInt();
switch(year % 12){
case 0:
System.out.println("monkey");
break;
case 1:
System.out.println("rooster");
break;
case 2:
System.out.println("dog");
break;
case 3:
System.out.println("pig");
break;
case 4:
System.out.println("rat");
break;
case 5:
System.out.println("ox");
break;
case 6:
System.out.println("tiger");
break;
case 7:
System.out.println("rabbit");
break;
case 8:
System.out.println("dragon");
break;
case 9:
System.out.println("snake");
break;
case 10:
System.out.println("horse");
break;
case 11:
System.out.println("sheep");
break;
default:
System.out.println("Invalid input");
break;
}
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 3}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 3}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:first},caption=Question 1 Source Code.]
import java.util.*;
public class loan {
private double annualInterestRate;
private int numberOfYears;
private double loanAmount;
private java.util.Date loanDate;
public loan(){
this.annualInterestRate = 2.5;
this.numberOfYears = 1;
this.loanAmount = 1000;
loanDate = new java.util.Date();
}
public loan(double annualInterestRate, int numberOfYears, double loanAmount){
this.annualInterestRate = annualInterestRate;
this.numberOfYears = numberOfYears;
this.loanAmount = loanAmount;
loanDate = new java.util.Date();
}
public double getAnnualInterestRate(){
return this.annualInterestRate;
}
public int getNumberOfYears(){
return this.numberOfYears;
}
public double getLoanAmount(){
return this.loanAmount;
}
public java.util.Date getLoanDate(){
return this.loanDate;
}
public void setAnnualInterestRate(double annualInterestRate){
this.annualInterestRate = annualInterestRate;
}
public void setNumberOfYears(int numberOfYears){
this.numberOfYears = numberOfYears;
}
public void setLoadAmount(double loanAmount){
this.loanAmount = loanAmount;
}
public double getMonthlyPayment(){
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 - (1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12)));
return monthlyPayment;
}
public double getTotalPayment(){
double totalPayment = getMonthlyPayment() * numberOfYears * 12;
return totalPayment;
}
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
// Annual Interest
System.out.print("Enter annual interest rate, for example, 8.25: ");
double annualInterestRate = sc.nextDouble();
// Number of years
System.out.print("Enter number of years as an integer: ");
int numberOfYears = sc.nextInt();
// Loan Amount
System.out.print("Enter loan amount, for example, 120000.95: ");
double loanAmount = sc.nextDouble();
// Create a Loan object
loan loan1 = new loan(annualInterestRate, numberOfYears, loanAmount);
// Date
java.util.Date loanDate = loan1.getLoanDate();
System.out.println("The loan was created on " + loanDate);
// Monthly payment
double monthlyPayment = loan1.getMonthlyPayment();
System.out.printf("The monthly payment is %.2f\n", monthlyPayment);
// Total Payment
double totalPayment = loan1.getTotalPayment();
System.out.printf("The total payment is %.2f", totalPayment);
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:first_output},caption=Question 1 Output.]
Enter annual interest rate, for example, 8.25: 2.5
Enter number of years as an integer: 5
Enter loan amount, for example, 120000.95: 1000
The loan was created on Mon Jan 09 15:31:09 SGT 2023
The monthly payment is 17.75
The total payment is 1064.84
\end{lstlisting}
\end{document}

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package Week3_Lab;
import java.util.*;
public class loan {
private double annualInterestRate;
private int numberOfYears;
private double loanAmount;
private java.util.Date loanDate;
public loan(){
//this.annualInterestRate = 2.5;
//this.numberOfYears = 1;
//this.loanAmount = 1000;
this(2.5, 1, 1000);
loanDate = new java.util.Date();
}
public loan(double annualInterestRate, int numberOfYears, double loanAmount){
this.annualInterestRate = annualInterestRate;
this.numberOfYears = numberOfYears;
this.loanAmount = loanAmount;
loanDate = new java.util.Date();
}
public double getAnnualInterestRate(){
return this.annualInterestRate;
}
public int getNumberOfYears(){
return this.numberOfYears;
}
public double getLoanAmount(){
return this.loanAmount;
}
public java.util.Date getLoanDate(){
return this.loanDate;
}
public void setAnnualInterestRate(double annualInterestRate){
this.annualInterestRate = annualInterestRate;
}
public void setNumberOfYears(int numberOfYears){
this.numberOfYears = numberOfYears;
}
public void setLoadAmount(double loanAmount){
this.loanAmount = loanAmount;
}
public double getMonthlyPayment(){
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 - (1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12)));
return monthlyPayment;
}
public double getTotalPayment(){
double totalPayment = getMonthlyPayment() * numberOfYears * 12;
return totalPayment;
}
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
// Annual Interest
System.out.print("Enter annual interest rate, for example, 8.25: ");
double annualInterestRate = sc.nextDouble();
// Number of years
System.out.print("Enter number of years as an integer: ");
int numberOfYears = sc.nextInt();
// Loan Amount
System.out.print("Enter loan amount, for example, 120000.95: ");
double loanAmount = sc.nextDouble();
// Create a Loan object
loan loan1 = new loan(annualInterestRate, numberOfYears, loanAmount);
// Date
java.util.Date loanDate = loan1.getLoanDate();
System.out.println("The loan was created on " + loanDate);
// Monthly payment
double monthlyPayment = loan1.getMonthlyPayment();
System.out.printf("The monthly payment is %.2f\n", monthlyPayment);
// Total Payment
double totalPayment = loan1.getTotalPayment();
System.out.printf("The total payment is %.2f", totalPayment);
}
}

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package Week4_Lab;
public class BMI {
private double heightInInches;
private double weightInPounds;
private double bmi;
public BMI(double heightInInches, double weightInPounds){
this.heightInInches = heightInInches;
this.weightInPounds = weightInPounds;
}
public double getHeightInInches() {
return this.heightInInches;
}
public double getWeightInPounds() {
return this.weightInPounds;
}
public void setHeightInInches(double heightInInches) {
this.heightInInches = heightInInches;
}
public void setWeightInPounds(double weightInPounds) {
this.weightInPounds = weightInPounds;
}
public double calBMI(double heightInInches, double weightInPounds){
double heightInMeters = heightInInches * 0.0254;
double weightInKilograms = weightInPounds * 0.45359237;
this.bmi = weightInKilograms / (heightInMeters * heightInMeters);
return this.bmi;
}
public void BMIInterpretation() {
if (this.bmi < 18.5) {
System.out.println("Underweight");
} else if (this.bmi >= 18.5 && this.bmi < 25) {
System.out.println("Normal");
} else if (this.bmi >= 25 && this.bmi < 30) {
System.out.println("Overweight");
} else if (this.bmi >= 30) {
System.out.println("Obese");
}
}
}

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package Week4_Lab;
import java.util.Scanner;
public class BMI_Main {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter your weight in pounds: ");
double weightInPounds = s.nextFloat();
System.out.print("Enter your height in inches: ");
double heightInInches = s.nextFloat();
BMI bmi = new BMI(heightInInches, weightInPounds);
System.out.println("BMI is " + bmi.calBMI(bmi.getHeightInInches(), bmi.getWeightInPounds()));
bmi.BMIInterpretation();
}
}

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package Week4_Lab;
public class StackOfIntegers {
private int[] elements;
private int size;
public StackOfIntegers(){
this(16);
}
public StackOfIntegers(int capacity){
this.elements = new int[capacity];
this.size = -1;
}
public boolean empty(){
return size == -1;
}
public int peek(){
return elements[size - 1];
}
public void push(int value){
this.size++;
this.elements[size] = value;
}
public int pop(){
int value = elements[size];
this.size--;
return value;
}
public int getSize(){
return size + 1;
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 4}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 4}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\textbf{Method assignments}
I first instantiated 3 variables: `heightInInches`, `weightInPounds` and `bmi`.
The constructor takes in 2 parameters, `heightInInches` and `weightInPounds`
and assigns them to the corresponding variables.\\
The getters and setters are required to access the variables from outside the class,
which was required for the `main` method in BMI\_Main.java.\\
\\
\textbf{calBMI()}
The `calBMI` method takes in 2 parameters, `heightInInches` and `weightInPounds`.
Using these variables, I first converted the \textbf{height} from inches to meters,
using the formula `heightInMeters = heightInInches * 0.0254` where 0.0254 is given as the conversion ratio in the lab handout and
I converted the \textbf{weight} from pounds to kilograms, using the formula `weightInKilograms = weightInPounds * 0.45359237` where 0.45359237 is given as the conversion ratio in the lab handout.
I then calculated the \textbf{BMI} using the formula `bmi = weightInKilograms / (heightInMeters * heightInMeters)`.\\
\\
\textbf{BMIInterpretation()}
The `BMIInterpretation` method takes in 1 parameter, `bmi` and returns a string
based on the value of `bmi`.\\
The method checks against values in the table provided in the lab sheet and returns the corresponding string.\\
\pagebreak
\begin{lstlisting}[label={list:BMI},caption=BMI.java]
public class BMI {
private double heightInInches;
private double weightInPounds;
private double bmi;
public BMI(double heightInInches, double weightInPounds){
this.heightInInches = heightInInches;
this.weightInPounds = weightInPounds;
}
public double getHeightInInches() {
return this.heightInInches;
}
public double getWeightInPounds() {
return this.weightInPounds;
}
public void setHeightInInches(double heightInInches) {
this.heightInInches = heightInInches;
}
public void setWeightInPounds(double weightInPounds) {
this.weightInPounds = weightInPounds;
}
public double calBMI(double heightInInches, double weightInPounds){
double heightInMeters = heightInInches * 0.0254;
double weightInKilograms = weightInPounds * 0.45359237;
this.bmi = weightInKilograms / (heightInMeters * heightInMeters);
return this.bmi;
}
public void BMIInterpretation() {
if (this.bmi < 18.5) {
System.out.println("Underweight");
} else if (this.bmi >= 18.5 && this.bmi < 25) {
System.out.println("Normal");
} else if (this.bmi >= 25 && this.bmi < 30) {
System.out.println("Overweight");
} else if (this.bmi >= 30) {
System.out.println("Obese");
}
}
}
\end{lstlisting}
\pagebreak
\textbf{BMI\_Main.java}
The `BMI\_Main` class uses the `BMI` class to calculate the BMI of a person. This is
the main function that was used to access an use the `BMI` class.\\
Using a Scanner, I first got the hight and weight from the user,
I then created a new `BMI` object and passed the height and weight to the constructor.
I called the `calBMI` method and passed the height and weight to the method.\\
Lastly, the `BMIInterpretation` method was called to print the BMI interpretation.
The input and output variables from the first output corresponds with the output from the lab sheet\\
\begin{lstlisting}[label={list:BMI_Main},caption=BMI\_Main.java]
import java.util.Scanner;
public class BMI_Main {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter your weight in pounds: ");
double weightInPounds = s.nextFloat();
System.out.print("Enter your height in inches: ");
double heightInInches = s.nextFloat();
BMI bmi = new BMI(heightInInches, weightInPounds);
System.out.println("BMI is " + bmi.calBMI(bmi.getHeightInInches(), bmi.getWeightInPounds()));
bmi.BMIInterpretation();
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:BMI_Output},caption=BMI\_Main.java Output]
//Output 1
Enter your weight in pounds: 146
Enter your height in inches: 70
BMI is 20.948603801493316
Normal
//Output 2
Enter your weight in pounds: 150
Enter your height in inches: 80
BMI is 16.478193272792794
Underweight
\end{lstlisting}
\pagebreak
\section*{Question 2}
\begin{lstlisting}[label={list:StackOfIntegers},caption=StackOfIntegers.java]
public class StackOfIntegers {
private int[] elements;
private int size;
public StackOfIntegers(){
this.elements = new int[16];
this.size = -1;
}
public StackOfIntegers(int capacity){
this.elements = new int[capacity];
this.size = -1;
}
public boolean empty(){
return size == -1;
}
public int peek(){
return elements[size - 1];
}
public void push(int value){
this.size++;
this.elements[size] = value;
}
public int pop(){
int value = elements[size];
this.size--;
return value;
}
public int getSize(){
return size;
}
}
\end{lstlisting}
\pagebreak
\begin{lstlisting}[label={list:TestStackOfIntegers},caption=TestStackOfIntegers.java]
public class TestStackOfIntegers {
public static void main(String[] args) {
StackOfIntegers stack = new StackOfIntegers();
for (int i = 0; i < 10; i++) {
stack.push(i);
}
while (!stack.empty()) {
System.out.print(stack.pop() + " ");
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:StackOfIntegers},caption=TestStackOfIntegers.java Output]
9 8 7 6 5 4 3 2 1 0
\end{lstlisting}
\end{document}

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package Week4_Lab;
public class TestStackOfIntegers {
public static void main(String[] args) {
StackOfIntegers stack = new StackOfIntegers();
for (int i = 0; i < 10; i++) {
stack.push(i);
}
while (!stack.empty()) {
System.out.print(stack.pop() + " ");
}
}
}

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Week5_Lab/GeometricObject/CircleFromSimpleGeometricObject.java Normal file
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package Week5_Lab.GeometricObject;
public class CircleFromSimpleGeometricObject extends GeometricObject{
private double radius;
public CircleFromSimpleGeometricObject(){
super();
}
public CircleFromSimpleGeometricObject(double radius){
super();
this.radius = radius;
}
public CircleFromSimpleGeometricObject(double radius, String color, boolean filled){
super();
this.radius = radius;
}
public double getRadius() {
return this.radius;
}
public void setRadius(double radius) {
this.radius = radius;
}
public double getArea(){
return Math.PI * Math.pow(this.radius, 2);
}
public double getPerimeter(){
return 2 * Math.PI * this.radius;
}
public double getDiameter(){
return 2 * this.radius;
}
public void printCircle(){
System.out.println("The color is " + getColor() + "\nThe area is " + getArea() + "\nthe diameter is " + getDiameter());
}
}

44
Week5_Lab/GeometricObject/GeometricObject.java Normal file
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package Week5_Lab.GeometricObject;
public class GeometricObject {
private String color;
private boolean filled;
private java.util.Date dateCreated;
public GeometricObject() {
//this.color = "white";
//this.filled = false;
this("white", false);
this.dateCreated = new java.util.Date();
}
public GeometricObject(String color, boolean filled){
this.color = color;
this.filled = filled;
this.dateCreated = new java.util.Date();
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public boolean isFilled() {
return filled;
}
public void setFilled(boolean filled) {
this.filled = filled;
}
public java.util.Date getDateCreated() {
return dateCreated;
}
public String toString(){
return " created on " + dateCreated + "\ncolor: " + color + " and filled: " + filled;
}
}

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Week5_Lab/GeometricObject/RectangleFromSimpleGeometricObject.java Normal file
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package Week5_Lab.GeometricObject;
public class RectangleFromSimpleGeometricObject extends GeometricObject{
private double width;
private double height;
public RectangleFromSimpleGeometricObject(){
super();
}
public RectangleFromSimpleGeometricObject(double width, double height){
super();
this.width = width;
this.height = height;
}
public RectangleFromSimpleGeometricObject(double width, double height, String color, boolean filled){
super(color, filled);
this.width = width;
this.height = height;
}
public double getWidth() {
return this.width;
}
public void setWidth(double width) {
this.width = width;
}
public double getHeight(){
return this.height;
}
public double setHeight(){
return this.height;
}
public double getArea(){
return this.width * this.height;
}
public double getPerimeter(){
return 2 * (this.width + this.height);
}
}

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Week5_Lab/GeometricObject/TestCircleRectangle.java Normal file
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package Week5_Lab.GeometricObject;
public class TestCircleRectangle {
public static void main(String[] args){
CircleFromSimpleGeometricObject circle = new CircleFromSimpleGeometricObject(1);
System.out.println("A circle " + circle.toString());
System.out.println("The color is " + circle.getColor());
System.out.println("The radius is " + circle.getRadius());
System.out.println("The area is " + circle.getArea());
System.out.println("The diameter is " + circle.getDiameter());
RectangleFromSimpleGeometricObject rectangle = new RectangleFromSimpleGeometricObject(2, 4);
System.out.println("A rectangle " + rectangle.toString());
System.out.println("The area is " + rectangle.getArea());
System.out.println("The perimeter is " + rectangle.getPerimeter());
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 5}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 5}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:GeometricObject},caption=GeometricObject.java]
public class GeometricObject {
private String color;
private boolean filled;
private java.util.Date dateCreated;
public GeometricObject() {
this.color = "white";
this.filled = false;
this.dateCreated = new java.util.Date();
}
public GeometricObject(String color, boolean filled){
this.color = color;
this.filled = filled;
this.dateCreated = new java.util.Date();
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public boolean isFilled() {
return filled;
}
public void setFilled(boolean filled) {
this.filled = filled;
}
public java.util.Date getDateCreated() {
return dateCreated;
}
public String toString(){
return " created on " + dateCreated + "\ncolor: " + color + " and filled: " + filled;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:CircleFromSimpleGeometricObject},caption=CircleFromSimpleGeometricObject.java]
public class CircleFromSimpleGeometricObject extends GeometricObject{
private double radius;
public CircleFromSimpleGeometricObject(){
super();
}
public CircleFromSimpleGeometricObject(double radius){
super();
this.radius = radius;
}
public CircleFromSimpleGeometricObject(double radius, String color, boolean filled){
super();
this.radius = radius;
}
public double getRadius() {
return this.radius;
}
public void setRadius(double radius) {
this.radius = radius;
}
public double getArea(){
return Math.PI * Math.pow(this.radius, 2);
}
public double getPerimeter(){
return 2 * Math.PI * this.radius;
}
public double getDiameter(){
return 2 * this.radius;
}
public void printCircle(){
System.out.println("The color is " + getColor() + "\nThe area is " + getArea() + "\nthe diameter is " + getDiameter());
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:RectangleFromSimpleGeometricObject},caption=RectangleFromSimpleGeometricObject.java]
public class RectangleFromSimpleGeometricObject extends GeometricObject{
private double width;
private double height;
public RectangleFromSimpleGeometricObject(){
super();
}
public RectangleFromSimpleGeometricObject(double width, double height){
super();
this.width = width;
this.height = height;
}
public RectangleFromSimpleGeometricObject(double width, double height, String color, boolean filled){
super(color, filled);
this.width = width;
this.height = height;
}
public double getWidth() {
return this.width;
}
public void setWidth(double width) {
this.width = width;
}
public double getHeight(){
return this.height;
}
public double setHeight(){
return this.height;
}
public double getArea(){
return this.width * this.height;
}
public double getPerimeter(){
return 2 * (this.width + this.height);
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:TestCircleRectangle},caption=TestCircleRectangle.java]
public class TestCircleRectangle {
public static void main(String[] args){
CircleFromSimpleGeometricObject circle = new CircleFromSimpleGeometricObject(1);
System.out.println("A circle " + circle.toString());
System.out.println("The color is " + circle.getColor());
System.out.println("The radius is " + circle.getRadius());
System.out.println("The area is " + circle.getArea());
System.out.println("The diameter is " + circle.getDiameter());
RectangleFromSimpleGeometricObject rectangle = new RectangleFromSimpleGeometricObject(2, 4);
System.out.println("A rectangle " + rectangle.toString());
System.out.println("The area is " + rectangle.getArea());
System.out.println("The perimeter is " + rectangle.getPerimeter());
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:TestCircleRectangle},caption=TestCircleRectangle.java]
A circle created on Fri Jan 27 15:07:16 SGT 2023
color: white and filled: false
The color is white
The radius is 1.0
The area is 3.141592653589793
The diameter is 2.0
A rectangle created on Fri Jan 27 15:07:16 SGT 2023
color: white and filled: false
The area is 8.0
The perimeter is 12.0
\end{lstlisting}
\section*{Question 2}
\begin{lstlisting}[label={list:Shape},caption=Shape.java]
public abstract class Shape {
public float dim1;
public float dim2;
public float PI = 3.14f;
public Shape(float dim1, float dim2) {
this.dim1 = dim1;
this.dim2 = dim2;
}
public abstract float area();
}
\end{lstlisting}
\begin{lstlisting}[label={list:Circle},caption=Circle.java]
public class Circle extends Shape{
public Circle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim1 * PI;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:Ellipse},caption=Ellipse.java]
public class Ellipse extends Shape{
public Ellipse(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2 * PI;
}
}
\end{lstlisting}
\pagebreak
\begin{lstlisting}[label={list:Rectangle},caption=Rectangle.java]
public class Rectangle extends Shape{
public Rectangle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:Square},caption=Square.java]
public class Square extends Shape{
public Square(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:Triangle},caption=Triangle.java]
public class Triangle extends Shape{
public Triangle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return 0.5f * dim1 * dim2 ;
}
}
\end{lstlisting}
\pagebreak
\begin{lstlisting}[label={list:ShapeTest},caption=ShapeTest.java]
public class ShapeTest {
public static void main(String[] args){
Rectangle r = new Rectangle(9,5);
Triangle t= new Triangle(10,8);
Circle c = new Circle(5,5);
Ellipse e = new Ellipse(7,7);
Square s = new Square(6,6);
Shape figref;
figref = r;
System.out.println("Inside Area for Rectangle.");
System.out.println("Area is " + figref.area());
figref = t;
System.out.println("Inside Area for Triangle.");
System.out.println("Area is " + figref.area());
figref = c;
System.out.println("Inside Area for Circle.");
System.out.println("Area is " + figref.area());
figref = e;
System.out.println("Inside Area for Ellipse.");
System.out.println("Area is " + figref.area());
figref = s;
System.out.println("Inside Area for Square.");
System.out.println("Area is " + figref.area());
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:ShapeTestOutput},caption=ShapeTest.java Output]
Inside Area for Rectangle.
Area is 45.0
Inside Area for Triangle.
Area is 40.0
Inside Area for Circle.
Area is 78.5
Inside Area for Ellipse.
Area is 153.86
Inside Area for Square.
Area is 36.0
\end{lstlisting}
\end{document}

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Week5_Lab/task2/Circle.java Normal file
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package Week5_Lab.task2;
public class Circle extends Shape{
public Circle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim1 * PI;
}
}

11
Week5_Lab/task2/Ellipse.java Normal file
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@ -0,0 +1,11 @@
package Week5_Lab.task2;
public class Ellipse extends Shape{
public Ellipse(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2 * PI;
}
}

12
Week5_Lab/task2/Rectangle.java Normal file
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@ -0,0 +1,12 @@
package Week5_Lab.task2;
public class Rectangle extends Shape{
public Rectangle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2;
}
}

16
Week5_Lab/task2/Shape.java Normal file
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@ -0,0 +1,16 @@
package Week5_Lab.task2;
public abstract class Shape {
public float dim1;
public float dim2;
public float PI = 3.14f;
public Shape(float dim1, float dim2) {
this.dim1 = dim1;
this.dim2 = dim2;
}
public abstract float area();
}

29
Week5_Lab/task2/ShapeTest.java Normal file
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package Week5_Lab.task2;
public class ShapeTest {
public static void main(String[] args){
Rectangle r = new Rectangle(9,5);
Triangle t= new Triangle(10,8);
Circle c = new Circle(5,5);
Ellipse e = new Ellipse(7,7);
Square s = new Square(6,6);
Shape figref;
figref = r;
System.out.println("Inside Area for Rectangle.");
System.out.println("Area is " + figref.area());
figref = t;
System.out.println("Inside Area for Triangle.");
System.out.println("Area is " + figref.area());
figref = c;
System.out.println("Inside Area for Circle.");
System.out.println("Area is " + figref.area());
figref = e;
System.out.println("Inside Area for Ellipse.");
System.out.println("Area is " + figref.area());
figref = s;
System.out.println("Inside Area for Square.");
System.out.println("Area is " + figref.area());
}
}

11
Week5_Lab/task2/Square.java Normal file
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@ -0,0 +1,11 @@
package Week5_Lab.task2;
public class Square extends Shape{
public Square(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return dim1 * dim2;
}
}

11
Week5_Lab/task2/Triangle.java Normal file
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@ -0,0 +1,11 @@
package Week5_Lab.task2;
public class Triangle extends Shape{
public Triangle(float dim1, float dim2) {
super(dim1, dim2);
}
public float area() {
return 0.5f * dim1 * dim2 ;
}
}

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Week6_Lab/Submission/CSC1109_Lab6_2200624.tex Normal file
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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 6}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 6}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:GeometricObject},caption=LinkList.java]
import java.util.*;
public class lab6_LL {
public static void main(String[] args){
LinkedList<Integer> ll = new LinkedList<Integer>();
ll.add(1);
ll.add(3);
ll.add(5);
ll.add(7);
ll.add(9);
ll.add(11);
// Question 1
System.out.print("Before adding: ");
printLinkedList(ll);
System.out.print("After adding and sorting: ");
printLinkedList(addAndSort(ll, 10));
// Question 2
//System.out.print("Before swapping:");
//printLinkedList(ll);
System.out.print("After swapping:");
swap(ll, 1, 6);
printLinkedList(ll);
//Question 3
LinkedList<Integer> randInt = new LinkedList<Integer>();
Random rand = new Random();
System.out.println("The 500 random numbers generated are: ");
for (int i = 0; i < 500; i++) {
randInt.add(rand.nextInt(1000, 9999));
}
printLinkedList(randInt);
int randomIntegerToSearch = rand.nextInt(1000, 9999);
System.out.println("\nAnother random number generated is " + randomIntegerToSearch);
int index = search(randInt, randomIntegerToSearch);
System.out.println(index);
}
public static void printLinkedList(LinkedList<Integer> ll){
System.out.print("[");
for (Integer integer : ll) {
if (Objects.equals(integer, ll.getLast())) {
System.out.println(integer + "]");
break;
}
System.out.print(integer + ", ");
}
}
public static LinkedList<Integer> addAndSort(LinkedList<Integer> ll, int value){
//ll.add(value);
//Collections.sort(ll); This Works
//Alternative is to loop through the list and insert the value at the correct index
for (int i = 0; i < ll.size(); i++) {
if (value < ll.get(i)) {
ll.add(i, value);
break;
}
}
return ll;
}
public static void swap(LinkedList<Integer> ll, int indexOne, int indexTwo){
int temp = ll.get(indexOne);
ll.set(indexOne, ll.get(indexTwo));
ll.set(indexTwo, temp);
}
public static int search(LinkedList<Integer> list, int searchVal){
for (Integer integer : list) {
if (integer == searchVal) {
System.out.println("Found " + searchVal + " at index " + list.indexOf(integer));
return list.indexOf(integer);
}
}
return -1;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:LinkList},caption=LinkList.java Output]
Before adding: [1, 3, 5, 7, 9, 11]
After adding and sorting: [1, 3, 5, 7, 9, 10, 11]
After swapping:[1, 11, 5, 7, 9, 10, 3]
The 500 random numbers generated are:
[5140, 2654, 9650, 6208, 3285, 5870, 8415, 4470, 3292, 5109, 9747, 2996, 2697, 2965, 2092, 2340, 9688, 1416, 6545, 6487, 4031, 4935, 2186, 1660, 1387, 1604, 3315, 9312, 8201, 3766, 6869, 2948, 9840, 4919, 7098, 2844, 1423, 8388, 6944, 8689, 2253, 2349, 3053, 8613, 4073, 2687, 4510, 5683, 7515, 6510, 4708, 8513, 9960, 5186, 1779, 4222, 7884, 3039, 4489, 1495, 8465, 2574, 3107, 4125, 1184, 5148, 2088, 2074, 3744, 8362, 3632, 8889, 2990, 3160, 5612, 2702, 5432, 3411, 4386, 8549, 5264, 4654, 3231, 2641, 6005, 5929, 2808, 4568, 7724, 8545, 6653, 2882, 8376, 7078, 2184, 9273, 2099, 6183, 4012, 9545, 6913, 4132, 3493, 5904, 6853, 9254, 7793, 3168, 5212, 6519, 4972, 9487, 5869, 5483, 2048, 6566, 3173, 1376, 3291, 5639, 6290, 6948, 2285, 4691, 8525, 6715, 4300, 7707, 1212, 7013, 2793, 2816, 5154, 6177, 2513, 5160, 1169, 3522, 9254, 8663, 5847, 2297, 6056, 3298, 4464, 1348, 3088, 4748, 2952, 9422, 2408, 1016, 2278, 2899, 9530, 2531, 2884, 5474, 8693, 1192, 6024, 3681, 8855, 6679, 1082, 1591, 5889, 1675, 3996, 6724, 1923, 9263, 2845, 6660, 8871, 4396, 1866, 2981, 3851, 4887, 6493, 1801, 3104, 1817, 1974, 6150, 5140, 3885, 9704, 7804, 6548, 8148, 8148, 1882, 6748, 5225, 4651, 8040, 7697, 6017, 2045, 2335, 1186, 5728, 8235, 2649, 2974, 2281, 5102, 1182, 1483, 8741, 6740, 8155, 3097, 8990, 8104, 2531, 2465, 3053, 3527, 1877, 7297, 8537, 7119, 7861, 7527, 6972, 3059, 2964, 9109, 8366, 5064, 8960, 9113, 4413, 3397, 9594, 2844, 2537, 8949, 8363, 1335, 7825, 5092, 1487, 4303, 3024, 7311, 3089, 8365, 3269, 9683, 3195, 1920, 8125, 4941, 3182, 1478, 3290, 8295, 5685, 7451, 5847, 5367, 3331, 7911, 2760, 8549, 7343, 9024, 6815, 6924, 2094, 2998, 3157, 4569, 2093, 4675, 6744, 2895, 8084, 8614, 8453, 9492, 8584, 9370, 6607, 2248, 9621, 3197, 7886, 5800, 7759, 9254, 2246, 6267, 7150, 5415, 6560, 9630, 7852, 8695, 2926, 7301, 2082, 4559, 7903, 3526, 2740, 1180, 6096, 5915, 3697, 1062, 2550, 9672, 8396, 7711, 1517, 9738, 5090, 6433, 2905, 4780, 4820, 3003, 3276, 1072, 2252, 1503, 5251, 6978, 4992, 4922, 1889, 4002, 3729, 5753, 4632, 3582, 6036, 2606, 8320, 3832, 1757, 8862, 9066, 1717, 7205, 4933, 1431, 9813, 2974, 4707, 3334, 8474, 4348, 4306, 1800, 8563, 3164, 1419, 9400, 8810, 7017, 3922, 2391, 7801, 2272, 6614, 9316, 6509, 1759, 2940, 6521, 2784, 2886, 8195, 7072, 4500, 2884, 6492, 1676, 7204, 6054, 9121, 4462, 6390, 5965, 4183, 8756, 7622, 8132, 8743, 3366, 1251, 1229, 6151, 3927, 5405, 7189, 6319, 1256, 4355, 9667, 2299, 4497, 8437, 5226, 5316, 5378, 9691, 1596, 9387, 7033, 5787, 1722, 6389, 1815, 3883, 2641, 3488, 8028, 8874, 4700, 7825, 1715, 4137, 5165, 6384, 6476, 7985, 2361, 1378, 9432, 7383, 4831, 1267, 5819, 2865, 9034, 4533, 2343, 9981, 7449, 9535, 7119, 4554, 7902, 3630, 9828, 5574, 3708, 7472, 5022, 6656, 3721, 9429, 3682, 3080, 7998, 1930, 1860, 3590, 1056, 8884, 8227, 6516, 3601, 8520, 1454, 2728, 6416, 5097, 9983, 7685, 2223, 9105, 2145, 1604, 7275, 7339, 6000, 7857, 9790, 8742, 6900, 4998, 2831, 1877, 1675, 2051, 6158, 8537, 3502, 8439, 4232, 2970, 9007]
Another random number generated is 9175
-1
\end{lstlisting}
\pagebreak
\section*{Question 2}
\begin{lstlisting}[label={list:HashMap},caption=HashMap.java]
import java.util.*;
public class lab6_Hash {
public static void main(String[] args){
HashMap<Integer, Integer> ht = new HashMap<>();
ht.put(0,1);
ht.put(1,3);
ht.put(2,5);
ht.put(3,7);
ht.put(4,9);
ht.put(5,11);
// Question 1
System.out.print("Before adding: ");
printHashMap(ht);
System.out.print("After adding and sorting: ");
printHashMap(addAndSort(ht, 10));
// Question 2
System.out.println("After swapping");
swap(ht, 1, 6);
printHashMap(ht);
//Question 3
HashMap<Integer, Integer> ranIntHash = new HashMap<>();
Random rand = new Random();
for (int i = 0; i < 500; i++) {
ranIntHash.put(i, rand.nextInt(1000, 9999));
}
System.out.println("The 500 random numbers generated are: ");
printHashMap(ranIntHash);
int randomIntegerToSearch = rand.nextInt(1000, 9999);
System.out.println("\nAnother random number generated is " + randomIntegerToSearch);
int index = search(ranIntHash, randomIntegerToSearch);
System.out.println(index);
}
public static void printHashMap(HashMap<Integer, Integer> ht){
System.out.print("[");
for (int i = 0; i < ht.size(); i++) {
if (Objects.equals(ht.get(i), ht.get(ht.size() - 1))) {
System.out.println(ht.get(i) + "]");
break;
}
System.out.print(ht.get(i) + ", ");
}
}
public static HashMap<Integer, Integer> addAndSort(HashMap<Integer, Integer> ht, int value){
//Collections.sort(ht); Does Not Work
// For each value in ht, if value is less than value, insert value at that index
for (int i = 0; i < ht.size(); i++) {
if (value < ht.get(i)) {
ht.put(ht.size(), ht.get(ht.size() - 1));
// Shift all values to the right of i to the right
for (int j = ht.size() - 2; j > i; j--) {
ht.put(j, ht.get(j - 1));
}
ht.put(i, value);
break;
}
}
return ht;
}
public static void swap(HashMap <Integer, Integer> ht, int indexOne, int indexTwo){
// Swap the values at indexOne and indexTwo
int temp = ht.get(indexOne);
ht.put(indexOne, ht.get(indexTwo));
ht.put(indexTwo, temp);
}
public static int search(HashMap <Integer, Integer> ht, int searchVal){
// Return index of searchVal if found, else return -1
for (int i = 0; i < ht.size(); i++) {
if (ht.get(i) == searchVal) {
return i;
}
}
return -1;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:HashtableOutput},caption=HashMap.java Output]
Before adding: [1, 3, 5, 7, 9, 11]
After adding and sorting: [1, 3, 5, 7, 9, 10, 11]
After swapping
[1, 11, 5, 7, 9, 10, 3]
The 500 random numbers generated are:
[7606, 4198, 4276, 8580, 7185, 1550, 6018, 9282, 1320, 8666, 3682, 8337, 9745, 5519, 7117, 5320, 2911, 7779, 8901, 3576, 3489, 3918, 5158, 5767, 1395, 4137, 9054, 3402, 5522, 4599, 6531, 1672, 7938, 5141, 5111, 8044, 2589, 8616, 7610, 1656, 7196, 9167, 8137, 7973, 6642, 9944, 2251, 3728, 6113, 6484, 2363, 1541, 8455, 5699, 6115, 9768, 5560, 8505, 3596, 2276, 4169, 2980, 5803, 2475, 6017, 3230, 4428, 3002, 3439, 2969, 7542, 8097, 5038, 1168, 6683, 4387, 4053, 4353, 2561, 7144, 6977, 2815, 7440, 4012, 8442, 7500, 8250, 9178, 6535, 5550, 8498, 1509, 7671, 1196, 7372, 2979, 8323, 6679, 7594, 2858, 1493, 7237, 1190, 9001, 9653, 1197, 2399, 7212, 5594, 9258, 9912, 7660, 3775, 6058, 4870, 8644, 8009, 3493, 2154, 5853, 9111, 5719, 2819, 2427, 6430, 3178, 4578, 8065, 3181, 9754, 2461, 1664, 1065, 6709, 5965, 7019, 5408, 4910, 3581, 9569, 3041, 6541, 3727, 2855, 5925, 4933, 5857, 9384, 1579, 8652, 4429, 8008, 7679, 7766, 5219, 3135, 9809, 8174, 1512, 7082, 9372, 2275, 1510, 6569, 9900, 1956, 8527, 1889, 1062, 4517, 8568, 5561, 5088, 8729, 9082, 4388, 8821, 3514, 1350, 2022, 6163, 6149, 8740, 5193, 4359, 6804, 7682, 1883, 5114, 8859, 5888, 8917, 8888, 8838, 7074, 5897, 1425, 1417, 5360, 3652, 8624, 3339, 1497, 6503, 8791, 3499, 5362, 1415, 1954, 9325, 7909, 5220, 8422, 5227, 2398, 9059, 9868, 6811, 1148, 3049, 3202, 1367, 5193, 9612, 1716, 3476, 3751, 9261, 1791, 3598, 9949, 7567, 3234, 5227, 6091, 9223, 6663, 9527, 3747, 6962, 2642, 7850, 4530, 5711, 7435, 6896, 9081, 8683, 3124, 6691, 2625, 9444, 5781, 8965, 1953, 3084, 5215, 5745, 5448, 6710, 6482, 7937, 5487, 9130, 6340, 4144, 4257, 4228, 6299, 5861, 5984, 1286, 9481, 4909, 8908, 1689, 2240, 8113, 5134, 8428, 1296, 9206, 2382, 7786, 8356, 5399, 8712, 3676, 1942, 5100, 5346, 2929, 4966, 4612, 8587, 6916, 7630, 5597, 6134, 4507, 8512, 4782, 8147, 8763, 3698, 7896, 8663, 7661, 9060, 9757, 9811, 4351, 4171, 9060, 6882, 9099, 5857, 1857, 3567, 5534, 1795, 7141, 4051, 1324, 5898, 5387, 4393, 8682, 5117, 6216, 5507, 7927, 3160, 9319, 8227, 7456, 9495, 1169, 8867, 1494, 1053, 8256, 9698, 5844, 7399, 6841, 1805, 7273, 6921, 7885, 1397, 2238, 1589, 8858, 8821, 2298, 5419, 4156, 9401, 9434, 6104, 1335, 9990, 2109, 4885, 4129, 1290, 3527, 9021, 8575, 4381, 1771, 2425, 9850, 8656, 7421, 9177, 2525, 4816, 5808, 2838, 8942, 3375, 8391, 5823, 6589, 1270, 4564, 3962, 1661, 6562, 5324, 4463, 7308, 4539, 8346, 3699, 2016, 4619, 9447, 9338, 7002, 3790, 1197, 3944, 4517, 3192, 8291, 7833, 9725, 4981, 8191, 5600, 6463, 6453, 4346, 1438, 4136, 9413, 1358, 5582, 7457, 8920, 9506, 8360, 5092, 1332, 3405, 1783, 1681, 9989, 4926, 8995, 6766, 5558, 2913, 4523, 5819, 7962, 5223, 9549, 5783, 5665, 5713, 2897, 2142, 7284, 5442, 7908, 6458, 7641, 3259, 5826, 6234, 4535, 3556, 1435, 5715, 3683, 4237, 2381, 6668, 7494, 1340, 5201, 8728, 8671, 4965, 1067, 7546, 1978, 5781, 8997, 8441, 1199, 3915, 4484, 8278, 7813, 9373, 1209, 7920, 5873, 5338, 7532, 8476, 9402, 6108, 1139, 1439, 4465, 2731, 8226, 1429, 7648, 1022, 6853, 6570, 7177, 4989]
Another random number generated is 1101
-1
\end{lstlisting}
\end{document}

93
Week6_Lab/lab6_Hash.java Normal file
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package Week6_Lab;
import java.util.*;
public class lab6_Hash {
public static void main(String[] args){
HashMap<Integer, Integer> ht = new HashMap<>();
ht.put(0,1);
ht.put(1,3);
ht.put(2,5);
ht.put(3,7);
ht.put(4,9);
ht.put(5,11);
// Question 1
System.out.print("Before adding: ");
printHashMap(ht);
System.out.print("After adding and sorting: ");
printHashMap(addAndSort(ht, 10));
// Question 2
System.out.println("After swapping");
swap(ht, 1, 6);
printHashMap(ht);
//Question 3
HashMap<Integer, Integer> ranIntHash = new HashMap<>();
Random rand = new Random();
for (int i = 0; i < 500; i++) {
ranIntHash.put(i, rand.nextInt(1000, 9999));
}
System.out.println("The 500 random numbers generated are: ");
printHashMap(ranIntHash);
int randomIntegerToSearch = rand.nextInt(1000, 9999);
System.out.println("\nAnother random number generated is " + randomIntegerToSearch);
int index = search(ranIntHash, randomIntegerToSearch);
System.out.println(index);
}
public static void printHashMap(HashMap<Integer, Integer> ht){
System.out.print("[");
for (int i = 0; i < ht.size(); i++) {
if (Objects.equals(ht.get(i), ht.get(ht.size() - 1))) {
System.out.println(ht.get(i) + "]");
break;
}
System.out.print(ht.get(i) + ", ");
}
}
public static HashMap<Integer, Integer> addAndSort(HashMap<Integer, Integer> ht, int value){
//Collections.sort(ht); Does Not Work
// For each value in ht, if value is less than value, insert value at that index
for (int i = 0; i < ht.size(); i++) {
if (value < ht.get(i)) {
ht.put(ht.size(), ht.get(ht.size() - 1));
// Shift all values to the right of i to the right
for (int j = ht.size() - 2; j > i; j--) {
ht.put(j, ht.get(j - 1));
}
ht.put(i, value);
break;
}
}
return ht;
}
public static void swap(HashMap <Integer, Integer> ht, int indexOne, int indexTwo){
// Swap the values at indexOne and indexTwo
int temp = ht.get(indexOne);
ht.put(indexOne, ht.get(indexTwo));
ht.put(indexTwo, temp);
}
public static int search(HashMap <Integer, Integer> ht, int searchVal){
// Return index of searchVal if found, else return -1
for (int i = 0; i < ht.size(); i++) {
if (ht.get(i) == searchVal) {
return i;
}
}
return -1;
}
}

85
Week6_Lab/lab6_LL.java Normal file
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package Week6_Lab;
import java.util.*;
public class lab6_LL {
public static void main(String[] args){
LinkedList<Integer> ll = new LinkedList<Integer>();
ll.add(1);
ll.add(3);
ll.add(5);
ll.add(7);
ll.add(9);
ll.add(11);
// Question 1
System.out.print("Before adding: ");
printLinkedList(ll);
System.out.print("After adding and sorting: ");
printLinkedList(addAndSort(ll, 10));
// Question 2
//System.out.print("Before swapping:");
//printLinkedList(ll);
System.out.print("After swapping:");
swap(ll, 1, 6);
printLinkedList(ll);
//Question 3
LinkedList<Integer> randInt = new LinkedList<Integer>();
Random rand = new Random();
System.out.println("The 500 random numbers generated are: ");
for (int i = 0; i < 500; i++) {
randInt.add(rand.nextInt(1000, 9999));
}
printLinkedList(randInt);
int randomIntegerToSearch = rand.nextInt(1000, 9999);
System.out.println("\nAnother random number generated is " + randomIntegerToSearch);
int index = search(randInt, randomIntegerToSearch);
System.out.println(index);
}
public static void printLinkedList(LinkedList<Integer> ll){
System.out.print("[");
for (Integer integer : ll) {
if (Objects.equals(integer, ll.getLast())) {
System.out.println(integer + "]");
break;
}
System.out.print(integer + ", ");
}
}
public static LinkedList<Integer> addAndSort(LinkedList<Integer> ll, int value){
//ll.add(value);
//Collections.sort(ll); This Works
//Alternative is to loop through the list and insert the value at the correct index
for (int i = 0; i < ll.size(); i++) {
if (value < ll.get(i)) {
ll.add(i, value);
break;
}
}
return ll;
}
public static void swap(LinkedList<Integer> ll, int indexOne, int indexTwo){
int temp = ll.get(indexOne);
ll.set(indexOne, ll.get(indexTwo));
ll.set(indexTwo, temp);
}
public static int search(LinkedList<Integer> list, int searchVal){
for (Integer integer : list) {
if (integer == searchVal) {
System.out.println("Found " + searchVal + " at index " + list.indexOf(integer));
return list.indexOf(integer);
}
}
return -1;
}
}

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package Week8_Lab;
import java.util.Scanner;
public class BankDemoTest {
public static void main(String[] args){
CheckingAccount c = new CheckingAccount();
Scanner sc = new Scanner(System.in);
System.out.print("Enter an amount to deposit: ");
double amount = sc.nextDouble();
c.deposit(amount);
System.out.print("Enter an amount to withdraw: ");
amount = sc.nextDouble();
try{
c.withdraw(amount);
}catch(InsufficientFundsException e){
if (e.getAmount() > c.getBalance()){
System.out.println("Sorry, but your account is short by: $" + (e.getAmount() - c.getBalance()));
}
}
if (amount <= c.getBalance())
System.out.println("The balance after withdrawal is: $" + (c.getBalance() - amount));
}
}

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Week8_Lab/CheckingAccount.java Normal file
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package Week8_Lab;
public class CheckingAccount extends InsufficientFundsException{
private double balance;
private int number;
public CheckingAccount(double amount) {
super(amount);
}
public CheckingAccount(){
this(0);
}
public void deposit(double amount){
if (amount > 0){
this.balance += amount;
}
}
public void withdraw(double amount) throws InsufficientFundsException{
if (amount > this.balance){
throw new InsufficientFundsException(amount);
}
}
public double getBalance(){
return this.balance;
}
public int getNumber(){
return this.number;
}
}

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Week8_Lab/CircleWithException.java Normal file
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package Week8_Lab;
import java.util.Scanner;
public class CircleWithException {
private double radius;
public CircleWithException(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getRadius() {
return radius;
}
public void setRadius(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getArea() throws Exception{
double area = Math.PI * radius * radius;
if (area > 1000){
throw new Exception("Area cannot be greater than 1000");
}
return area;
}
// Exceptions not stated in Lab Instructions
public double getDiameter() {
return radius * 2;
}
public static void main(String[] args) {
CircleWithException c1 = new CircleWithException(5);
Scanner sc = new Scanner(System.in);
System.out.print("Enter a radius: ");
double radius = sc.nextDouble();
try {
CircleWithException c2 = new CircleWithException(radius);
System.out.println("Radius: " + c2.getRadius());
System.out.println("Area: " + c2.getArea());
System.out.println("Diameter: " + c2.getDiameter());
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}

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Week8_Lab/InsufficientFundsException.java Normal file
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package Week8_Lab;
public class InsufficientFundsException extends Throwable{
private double amount;
public InsufficientFundsException(double amount){
this.amount = amount;
}
public double getAmount(){
return amount;
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 7}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 7}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:CircleWithException},caption=CircleWithException.java]
import java.util.Scanner;
public class CircleWithException {
private double radius;
public CircleWithException(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getRadius() {
return radius;
}
public void setRadius(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getArea() throws Exception{
double area = Math.PI * radius * radius;
if (area > 1000){
throw new Exception("Area cannot be greater than 1000");
}
return area;
}
// Exceptions not stated in Lab Instructions
public double getDiameter() {
return radius * 2;
}
public static void main(String[] args) {
CircleWithException c1 = new CircleWithException(5);
Scanner sc = new Scanner(System.in);
System.out.print("Enter a radius: ");
double radius = sc.nextDouble();
try {
CircleWithException c2 = new CircleWithException(radius);
System.out.println("Radius: " + c2.getRadius());
System.out.println("Area: " + c2.getArea());
System.out.println("Diameter: " + c2.getDiameter());
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:CircleWithException},caption=CircleWithException.java Output]
// Negative radius
Enter a radius: -10
Radius cannot be negative
// Area Greater than 1000
Enter a radius: 1000
Radius: 1000.0
Area cannot be greater than 1000
// Valid Circle
Enter a radius: 5
Radius: 5.0
Area: 78.53981633974483
Diameter: 10.0
\end{lstlisting}
\pagebreak
\section*{Question 2}
\begin{lstlisting}[label={list:InsufficientFundsException},caption=InsufficientFundsException.java]
public class InsufficientFundsException extends Exception{
private double amount;
public InsufficientFundsException(double amount){
this.amount = amount;
}
public double getAmount(){
return amount;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:CheckingAccount},caption=CheckingAccount.java]
public class CheckingAccount extends InsufficientFundsException{
private double balance;
private int number;
public CheckingAccount(double amount) {
super(amount);
}
public CheckingAccount(){
this(0);
}
public void deposit(double amount){
if (amount > 0){
this.balance += amount;
}
}
public void withdraw(double amount) throws InsufficientFundsException{
if (amount > this.balance){
throw new InsufficientFundsException(amount);
}
}
public double getBalance(){
return this.balance;
}
public int getNumber(){
return this.number;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:BankDemoTest},caption=BankDemoTest.java]
import java.util.Scanner;
public class BankDemoTest {
public static void main(String[] args){
CheckingAccount c = new CheckingAccount();
Scanner sc = new Scanner(System.in);
System.out.print("Enter an amount to deposit: ");
double amount = sc.nextDouble();
c.deposit(amount);
System.out.print("Enter an amount to withdraw: ");
amount = sc.nextDouble();
try{
c.withdraw(amount);
}catch(InsufficientFundsException e){
if (e.getAmount() > c.getBalance()){
System.out.println("Sorry, but your account is short by: $" + (e.getAmount() - c.getBalance()));
}
}
if (amount <= c.getBalance())
System.out.println("The balance after withdrawal is: $" + (c.getBalance() - amount));
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:BankDemoTestOutput},caption=BankDemoTest.java Output]
// $yy < $xx
Enter an amount to deposit: 100
Enter an amount to withdraw: 20
The balance after withdrawal is: $80.0
// $yy > $xx
Enter an amount to deposit: 100
Enter an amount to withdraw: 254
Sorry, but your account is short by: $154.0
\end{lstlisting}
\end{document}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 8}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 8}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:CircleWithException},caption=CircleWithException.java]
import java.util.Scanner;
public class CircleWithException {
private double radius;
public CircleWithException(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getRadius() {
return radius;
}
public void setRadius(double radius) throws IllegalArgumentException {
if (radius < 0) {
throw new IllegalArgumentException("Radius cannot be negative");
}
this.radius = radius;
}
public double getArea() throws Exception{
double area = Math.PI * radius * radius;
if (area > 1000){
throw new Exception("Area cannot be greater than 1000");
}
return area;
}
// Exceptions not stated in Lab Instructions
public double getDiameter() {
return radius * 2;
}
public static void main(String[] args) {
CircleWithException c1 = new CircleWithException(5);
Scanner sc = new Scanner(System.in);
System.out.print("Enter a radius: ");
double radius = sc.nextDouble();
try {
CircleWithException c2 = new CircleWithException(radius);
System.out.println("Radius: " + c2.getRadius());
System.out.println("Area: " + c2.getArea());
System.out.println("Diameter: " + c2.getDiameter());
} catch (IllegalArgumentException e) {
System.out.println(e.getMessage());
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:CircleWithException},caption=CircleWithException.java Output]
// Negative radius
Enter a radius: -10
Radius cannot be negative
// Area Greater than 1000
Enter a radius: 1000
Radius: 1000.0
Area cannot be greater than 1000
// Valid Circle
Enter a radius: 5
Radius: 5.0
Area: 78.53981633974483
Diameter: 10.0
\end{lstlisting}
\pagebreak
\section*{Question 2}
\begin{lstlisting}[label={list:InsufficientFundsException},caption=InsufficientFundsException.java]
public class InsufficientFundsException extends Exception{
private double amount;
public InsufficientFundsException(double amount){
this.amount = amount;
}
public double getAmount(){
return amount;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:CheckingAccount},caption=CheckingAccount.java]
public class CheckingAccount extends InsufficientFundsException{
private double balance;
private int number;
public CheckingAccount(double amount) {
super(amount);
}
public CheckingAccount(){
this(0);
}
public void deposit(double amount){
if (amount > 0){
this.balance += amount;
}
}
public void withdraw(double amount) throws InsufficientFundsException{
if (amount > this.balance){
throw new InsufficientFundsException(amount);
}
}
public double getBalance(){
return this.balance;
}
public int getNumber(){
return this.number;
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:BankDemoTest},caption=BankDemoTest.java]
import java.util.Scanner;
public class BankDemoTest {
public static void main(String[] args){
CheckingAccount c = new CheckingAccount();
Scanner sc = new Scanner(System.in);
System.out.print("Enter an amount to deposit: ");
double amount = sc.nextDouble();
c.deposit(amount);
System.out.print("Enter an amount to withdraw: ");
amount = sc.nextDouble();
try{
c.withdraw(amount);
}catch(InsufficientFundsException e){
if (e.getAmount() > c.getBalance()){
System.out.println("Sorry, but your account is short by: $" + (e.getAmount() - c.getBalance()));
}
}
if (amount <= c.getBalance())
System.out.println("The balance after withdrawal is: $" + (c.getBalance() - amount));
}
}
\end{lstlisting}
\begin{lstlisting}[label={list:BankDemoTestOutput},caption=BankDemoTest.java Output]
// $yy < $xx
Enter an amount to deposit: 100
Enter an amount to withdraw: 20
The balance after withdrawal is: $80.0
// $yy > $xx
Enter an amount to deposit: 100
Enter an amount to withdraw: 254
Sorry, but your account is short by: $154.0
\end{lstlisting}
\end{document}

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package Week9_Lab;
public class RandomCharacter {
public static char getRandomLowerCaseLetter(){
return (char)('a' + Math.random() * ('z' - 'a' + 1));
}
public static char getRandomUpperCaseLetter(){
return (char)('A' + Math.random() * ('Z' - 'A' + 1));
}
public static char getRandomDigitCharacter(){
return (char)('0' + Math.random() * ('9' - '0' + 1));
}
public static char getRandomCharacter(){
int num = (int)(Math.random() * 3);
return switch (num) {
case 0 -> getRandomLowerCaseLetter();
case 1 -> getRandomUpperCaseLetter();
case 2 -> getRandomDigitCharacter();
default -> ' ';
};
}
public int genPrime() {
int num;
do {
num = 0;
for (int i = 0; i < 10; i++) {
num = num * 10 + (getRandomDigitCharacter() - '0');
}
} while (!isPrime(num) || (int) (Math.log10(num) + 1) != 10);
return num;
}
public boolean isPrime(int inputNum){
if (inputNum <= 3 || inputNum % 2 == 0)
return inputNum == 2 || inputNum == 3;
int divisor = 3;
while ((divisor <= Math.sqrt(inputNum)) && (inputNum % divisor != 0))
divisor += 2;
return inputNum % divisor != 0;
}
public static void main(String[] args) {
for (int i = 0; i < 15; i++){
System.out.print(getRandomLowerCaseLetter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomUpperCaseLetter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomDigitCharacter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomCharacter() + " ");
}
System.out.println();
System.out.println(new RandomCharacter().genPrime());
}
}

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package Week9_Lab;
import org.junit.Test;
import static org.junit.Assert.*;
public class RandomCharacterTest {
@Test
public void testGetRandomLowerCaseLetter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomLowerCaseLetter();
assertTrue(c >= 'a' && c <= 'z');
}
}
@Test
public void testGetRandomUpperCaseLetter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomUpperCaseLetter();
assertTrue(c >= 'A' && c <= 'Z');
}
}
@Test
public void testGetRandomDigitCharacter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomDigitCharacter();
assertTrue(c >= '0' && c <= '9');
}
}
@Test
public void testGetRandomCharacter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomCharacter();
assertTrue((c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') ||
(c >= '0' && c <= '9')
);
}
}
}

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\documentclass[a4paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{xcolor}
\renewcommand\familydefault{\sfdefault}
\usepackage{tgheros}
\usepackage[defaultmono]{droidsansmono}
\usepackage{amsmath,amssymb,amsthm,textcomp}
\usepackage{enumerate}
\usepackage{multicol}
\usepackage{tikz}
\usepackage{geometry}
\geometry{left=25mm,right=25mm,%
bindingoffset=0mm, top=20mm,bottom=20mm}
% Image path
\graphicspath{{images/}}
\linespread{1.3}
\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
% custom theorems if needed
\newtheoremstyle{mytheor}
{1ex}{1ex}{\normalfont}{0pt}{\scshape}{.}{1ex}
{{\thmname{#1 }}{\thmnumber{#2}}{\thmnote{ (#3)}}}
\theoremstyle{mytheor}
\newtheorem{defi}{Definition}
% my own titles
\makeatletter
\renewcommand{\maketitle}{
\begin{center}
\vspace{2ex}
{\huge \textsc{\@title}}
\vspace{1ex}
\\
\linia\\
\@author \hfill \@date
\vspace{4ex}
\end{center}
}
\makeatother
%%%
% custom footers and headers
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\chead{}
\rhead{}
\lfoot{CSC 1109 Lab 9}
\cfoot{}
\rfoot{Page \thepage}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0pt}
%
% code listing settings
\usepackage{listings}
\lstset{
language=java,
basicstyle=\ttfamily\small,
aboveskip={1.0\baselineskip},
belowskip={1.0\baselineskip},
columns=fixed,
extendedchars=true,
breaklines=true,
tabsize=4,
prebreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
frame=lines,
showtabs=false,
showspaces=false,
showstringspaces=false,
keywordstyle=\color[rgb]{0.627,0.126,0.941},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{01,0,0},
numbers=left,
numberstyle=\small,
stepnumber=1,
numbersep=10pt,
captionpos=t,
escapeinside={\%*}{*)}
}
%%%----------%%%----------%%%----------%%%----------%%%
\begin{document}
\title{CSC 1109 Lab 9}
\author{Woon Jun Wei, 2200624}
\date{\today}
\maketitle
\section*{Question 1}
\begin{lstlisting}[label={list:RandomCharacter},caption=RandomCharacter.java]
public class RandomCharacter {
public static char getRandomLowerCaseLetter(){
return (char)('a' + Math.random() * ('z' - 'a' + 1));
}
public static char getRandomUpperCaseLetter(){
return (char)('A' + Math.random() * ('Z' - 'A' + 1));
}
public static char getRandomDigitCharacter(){
return (char)('0' + Math.random() * ('9' - '0' + 1));
}
public static char getRandomCharacter(){
int num = (int)(Math.random() * 3);
return switch (num) {
case 0 -> getRandomLowerCaseLetter();
case 1 -> getRandomUpperCaseLetter();
case 2 -> getRandomDigitCharacter();
default -> ' ';
};
}
public int genPrime() {
int num;
do {
num = 0;
for (int i = 0; i < 10; i++) {
num = num * 10 + (getRandomDigitCharacter() - '0');
}
} while (!isPrime(num) || (int) (Math.log10(num) + 1) != 10);
return num;
}
public boolean isPrime(int inputNum){
if (inputNum <= 3 || inputNum % 2 == 0)
return inputNum == 2 || inputNum == 3;
int divisor = 3;
while ((divisor <= Math.sqrt(inputNum)) && (inputNum % divisor != 0))
divisor += 2;
return inputNum % divisor != 0;
}
public static void main(String[] args) {
for (int i = 0; i < 15; i++){
System.out.print(getRandomLowerCaseLetter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomUpperCaseLetter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomDigitCharacter() + " ");
}
System.out.println();
for (int i = 0; i < 15; i++){
System.out.print(getRandomCharacter() + " ");
}
System.out.println();
System.out.println(new RandomCharacter().genPrime());
}
}
\end{lstlisting}
\pagebreak
\begin{lstlisting}[label={list:RandomCharacterOutput},caption=Output of RandomCharacter.java]
//Output 1
q e s o u e b e j j o s l c t
M G G C J Q T F F W Z A A J E
8 0 7 7 8 9 3 8 9 7 2 2 3 6 7
u R 7 G 4 b 2 0 n 7 a 8 6 6 X
1174095277
//Output 2
s b w w j q z u t a q l t t o
I R C J K D Z S O E Z G D B I
9 3 0 8 9 2 1 9 8 9 2 0 6 6 2
Y k N l b T M 9 R 4 8 8 d G H
1293553021
\end{lstlisting}
\pagebreak
\begin{lstlisting}[label={list:RandomCharacterTest},caption=Test cases of RandomCharacter.java, RandomCharacterTest.java]
import org.junit.Test;
import static org.junit.Assert.*;
public class RandomCharacterTest {
@Test
public void testGetRandomLowerCaseLetter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomLowerCaseLetter();
assertTrue(c >= 'a' && c <= 'z');
}
}
@Test
public void testGetRandomUpperCaseLetter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomUpperCaseLetter();
assertTrue(c >= 'A' && c <= 'Z');
}
}
@Test
public void testGetRandomDigitCharacter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomDigitCharacter();
assertTrue(c >= '0' && c <= '9');
}
}
@Test
public void testGetRandomCharacter() {
for (int i = 0; i < 1000;i++){
char c = RandomCharacter.getRandomCharacter();
assertTrue((c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') ||
(c >= '0' && c <= '9')
);
}
}
}
\end{lstlisting}
\pagebreak
{\huge\textbf{RandomCharacterTest.java Output}}
% Insert image
\begin{figure}[ht]
\centering
\includegraphics[width=0.8\textwidth]{testcase.png}
\caption{Output of RandomCharacterTest.java}
\label{fig:RandomCharacterTest}
\end{figure}
\end{document}

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