Armstrong Number Between Two Intervals - Java Algorithm

Java examples for Algorithm:Number

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Description

Armstrong Number Between Two Intervals

Demo Code

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    int a, b;/*from  w  ww . j a  va2  s .c  o  m*/
    Scanner s = new Scanner(System.in);
    a = s.nextInt();
    b = s.nextInt();
    System.out.println("The armstrong numbers between" + a + " are " + b);
    print(a, b);
    s.close();
  }

  public static boolean isArmstrong(int num) {
    int temp, i, j = 0;
    temp = num;
    while (temp != 0) {
      i = temp % 10;
      j += i * i * i;
      temp /= 10;
    }
    if (temp == j) {
      return true;
    } else {
      return false;
    }
  }

  public static void print(int a, int b) {

    while (a <= b) {
      if (isArmstrong(a)) {

        System.out.println(a);
      }
      a++;
    }
  }
}

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