Programmers [Java] - Lv. 0 : 9로 나눈 나머지

 

class Solution
{
    public int solution(String number)
    {
        char[] numCharArr = number.toCharArray();
         int sum = 0;
         int result;

         for (int i = 0; i < numCharArr.length; i++)
         {
            int a = Integer.parseInt(String.valueOf(numCharArr[i]));
            sum += a;
         }

         result = sum % 9;

         return result;
    }

}