Java Program To Check The Number Is Armstrong Or Not

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Armstrong {

public static void main(String args[]) throws Exception {

BufferedReader keyboard = new BufferedReader(new InputStreamReader(
System.in));
System.out.println("Enter Number :");
int num = Integer.parseInt(keyboard.readLine());

int n = num; // use to check at last time
int check = 0, remainder;
while (num > 0) {
remainder = num % 10;
check = check + (int) Math.pow(remainder, 3);
num = num / 10;
}
if (check == n)
System.out.println(n + " is an Armstrong Number");
else
System.out.println(n + " is not a Armstrong Number");
}
}

OUTPUT:

                      Enter Number :153

                      153 is an Armstrong Number