package com.java.javafws.example;

public class AmstrongEx {

 public boolean isArmstrongNumber(int number) {

  int tmp = number;
  int sum = 0;
  int div = 0;
  while (tmp > 0) {
   div = tmp % 10;
   sum += div * div * div; // or Math.pow(div, 3);
   tmp = tmp / 10;
  }
  if (number == sum) {
   return true;
  } else {
   return false;
  }
 }

 public static void main(String a[]) {
  AmstrongEx an = new AmstrongEx();
  System.out.println("Is 371 Armstrong number? = "
    + an.isArmstrongNumber(371));
  System.out.println("Is 523 Armstrong number? = "
    + an.isArmstrongNumber(523));
  System.out.println("Is 153 Armstrong number? = "
    + an.isArmstrongNumber(153));
 }
}