ThrowAndThrows.java

class NegativeRadiusException extends Exception{
    @Override
    public String toString() {
        return "Radius cannot be negative!";
    }

    @Override
    public String getMessage() {
        return "Radius cannot be negative!";
    }
}

public class ThrowAndThrows {

    public static double area(int r) throws NegativeRadiusException{
        if (r<0){
            throw new NegativeRadiusException();
        }
        double result = Math.PI * r * r;
        return result;
    }

    public static int divide(int a, int b) throws ArithmeticException{
        
        int result = a/b;
        return result;
    }
    public static void main(String[] args) {
        try{
            double ar1 = divide(65,0);
            System.out.println(ar1);
            // double ar = area(-5);
            // System.out.println(ar);
        }
        catch(Exception e){
            System.out.println("Exception");
        }
    }
}