Armstrong_number

import java.util.Scanner;

public class ArmstrongNumber {
    public static boolean isArmstrongNumber(int num) {
        int originalNum = num;
        int numDigits = (int) Math.log10(num) + 1;
        int armstrongSum = 0;

        while (num > 0) {
            int digit = num % 10;
            armstrongSum += Math.pow(digit, numDigits);
            num /= 10;
        }

        return armstrongSum == originalNum;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a number: ");
        int userNum = scanner.nextInt();

        if (isArmstrongNumber(userNum)) {
            System.out.println(userNum + " is an Armstrong number.");
        } else {
            System.out.println(userNum + " is not an Armstrong number.");
        }
    }
}