2058. 자릿수 더하기

package oSWExpertAcademy;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

//자릿수 더하기 
public class D1_06 {
    public static void main(String[]args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        try {
            String[] num = br.readLine().split("");
            int sum = 0;
            for(int i=0; i<num.length; i++) {
                sum += Integer.parseInt(num[i]);
            }
            System.out.println(sum);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}