Write a Java Program to Print the Armstrong numbers from 0 to 999

What is Armstrong Number ?

In an Armstrong Number, the sum of power of individual digits is equal to number itself.

In other words the following equation will hold true

xy..z = xn + yn+.....+ zn 
n is number of digits in number 

For example this is a 3 digit Armstrong number

370 = 33 + 73 + 03
    = 27 + 343 + 0
    = 370

Examples of Armstrong Numbers

0, 1, 4, 5, 9, 153, 371, 407, 8208, etc

Program:

public class Armstrong_Range

{
public static void main(String[] args)
{
        int tempNumber, digit, digitCubeSum;
       for (int inputArmstrongNumber = 0; inputArmstrongNumber < 1000; inputArmstrongNumber++)
       {
            tempNumber = inputArmstrongNumber;
            digitCubeSum = 0;
            while (tempNumber != 0)
            {
                /* On each iteration, remainder is powered by thetempNumber of digits n
                 */
                 digit = tempNumber % 10;
                 //sum of cubes of each digits is equal to thetempNumber itself
                digitCubeSum = digitCubeSum + digit * digit * digit;
                 tempNumber /= 10;
            }
             //check giventempNumber and digitCubeSum is equal to or not
            if (digitCubeSum == inputArmstrongNumber)
                System.out.println(inputArmstrongNumber + " is an Armstrong Number");
         }
     }

 }

Output:

0 is an Armstrong Number
1 is an Armstrong Number
153 is an Armstrong Number
370 is an Armstrong Number
371 is an Armstrong Number
407 is an Armstrong Number