public class Solution {
public static void main(String[] args) {
System.out.println(sumDigitsInNumber(546));
}
public static int sumDigitsInNumber(int number) {
int sum ;
int n;
sum =0;
while(number >=0){
n=number%10;
sum = sum + n;
number = number/10;
}
return sum;
}
}

package com.codegym.task.task01.task0132;
/*
Sum of the digits of a three-digit number
*/
public class Solution {
public static void main(String[] args) {
System.out.println(sumDigitsInNumber(546));
}
public static int sumDigitsInNumber(int number) {
int sum ;
int n;
sum =0;
while(number >=0){
n=number%10;
sum = sum + n;
number = number/10;
}
return sum;
}
}