public class Amstrong { public static void main(String[] args) { int n = 153; if (isAmstrong(n)) { System.out.println("yes"); } else { System.out.println("no"); } } private static boolean isAmstrong(int n) { int result = 0; int number = n; while (n != 0) { int remainder = n % 10; result = result + remainder * remainder * remainder; n = n / 10; } if (result == number) { return true; } else { return false; } } }