package Others;

import java.util.Scanner;

/**
 * A utility to check if a given number is armstrong or not. Armstrong number is
 * a number that is equal to the sum of cubes of its digits for example 0, 1,
 * 153, 370, 371, 407 etc. For example 153 = 1^3 + 5^3 +3^3
 *
 * @author mani manasa mylavarapu
 */
public class Armstrong {
 static Scanner scan;

 public static void main(String[] args) {
 scan = new Scanner(System.in);
 int n = inputInt("please enter the number");
 boolean isArmstrong = checkIfANumberIsAmstrongOrNot(n);
 if (isArmstrong) {
 System.out.println("the number is armstrong");
 } else {
 System.out.println("the number is not armstrong");
 }
 }

 /**
 * Checks whether a given number is an armstrong number or not. Armstrong
 * number is a number that is equal to the sum of cubes of its digits for
 * example 0, 1, 153, 370, 371, 407 etc.
 *
 * @param number
 * @return boolean
 */
 public static boolean checkIfANumberIsAmstrongOrNot(int number) {
 int remainder, sum = 0, temp = 0;
 temp = number;
 while (number > 0) {
 remainder = number % 10;
 sum = sum + (remainder * remainder * remainder);
 number = number / 10;
 }
 return sum == temp;
 }

 private static int inputInt(String string) {
 System.out.print(string);
 return Integer.parseInt(scan.nextLine());
 }
}