하샤드 수

import java.util.ArrayList;

public class HarsaNumber {
    public static void main(String[] args) {
        int x = 11;
        boolean answer = true;
        int xCopy = x;
        int sum = 0;

        ArrayList<Integer> list = new ArrayList<Integer>();

        while (x > 0) {
            list.add(x % 10);
            x /= 10;
        }

        for (int num : list) {
            sum += num;
        }
        if (xCopy % sum == 0) {
            answer = true;
        } else {
            answer = false;
        }
        System.out.println(answer);
    }
}