import java.io.; import java.util.;

public class Solution {

public static void main(String[] args) {

    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    int y=sc.nextInt();

    if(x>0 && y>0)
    {
         System.out.println(x*y); 
    }

    else
    {
        System.out.println("java.lang.Exception: Breadth and height must be positive");
    }
}

}

Here is my solution.

-------------Static Code Block---------------------

static int B, H; static boolean flag;

static { Scanner scan = new Scanner(System.in); B = scan.nextInt(); H = scan.nextInt(); if(B > 0 && H > 0) { flag = true; } else { System.out.println("java.lang.Exception: Breadth and height must be positive"); } scan.close(); }

This exercise is a great way to understand how static initialization blocks work in Java. Cricketbuzz com login

import java.io.; import java.util.;

public class Solution {

static{

        Scanner sc = new Scanner(System.in);
        int b = sc.nextInt();
        int l = sc.nextInt();

        if(b > 0 &&  b<= 100 && l >0 && l<=100){
            System.out.println(l*b);
        }
        else{
            System.out.println("java.lang.Exception: Breadth and height must be positive");
        }

}


public static void main(String[] args) {

}

}

import java.util.*;

public class Solution {

public static void main(String[] args) {
    Scanner Scan = new Scanner(System.in);
    int b = Scan.nextInt();
    int h = Scan.nextInt();
    if(b<=0 || h<=0){
        System.out.println("java.lang.Exception: Breadth and height must be positive");
    }
    else{
        System.out.println(b*h);
    }
}

}