your solution variable Type is int
, and your else statement returns an String
, this is the cause of error.
you can change your code to this:
Scanner input = new Scanner (System.in);
int B = input.nextInt();
int H = input.nextInt();
int P;
if (B >= 0 && H >= 0) {
P = B*H;
} else {
throw new Exception("Breadth and height must be positive");
}
System.out.println(P);
}