Armstrong

import java.util.Scanner;

public class ArmstrongNumber {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a number to check if it's an Armstrong number: ");
        int number = sc.nextInt();
        int originalNumber, remainder, result = 0, n = 0;

        originalNumber = number;

        // Finding the number of digits
        while (originalNumber != 0) {
            originalNumber /= 10;
            ++n;
        }

        originalNumber = number;

        // Calculating the sum of nth power of digits
        while (originalNumber != 0) {
            remainder = originalNumber % 10;
            result += Math.pow(remainder, n);
            originalNumber /= 10;
        }

        if (result == number)
            System.out.println(number + " is an Armstrong number.");
        else
            System.out.println(number + " is not an Armstrong number.");
    }
}