Armstrong Number Program in Java

Armstrong Number is a positive number if it is equal to the sum of cubes of its digits is called Armstrong number and if its sum is not equal to the number then its not a Armstrong number.

Armstrong Number Program is very popular in java, c language, python etc.

Examples: 153 is Armstrong

(1*1*1)+(5*5*5)+(3*3*3) = 153

import java.util.Scanner;

/**
 * @author AFAQ
 */
public class ArmstrongNumber
{
    public static void main(String[] args)
    {
        int n,
        cubeSum = 0, num, r;
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter number=");
        n = sc.nextInt();
        num = n;
        while (num > 0)
        {
            r = num % 10;
            cubeSum = cubeSum + (r * r * r);
            num = num / 10;
        }
        if (n == cubeSum)
        {
            System.out.println("Armstrong Number");
        }
        else
        {
            System.out.println("Not Armstrong Number");
        }
    }
}

Output:

Enter number=153
Armstrong Number