CSC1109_Tutorials/Practice/test2/ExceptionalCalculator.java

68 lines
1.8 KiB
Java

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");
}
}
}