package com.javarush.task.task01.task0132; public class Solution { public static void main(String[] args) { System.out.println(sumDigitsInNumber(999)); } public static int sumDigitsInNumber(int number) { int sum = 0; sum = sum + number % 10; number = number / 10; sum = sum + number % 10; number = number / 10; sum = sum + number % 10; return sum; } }