CSC1109_Tutorials/Exam/shapes.java

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();
    }
}