201512-1 数位之和 Java

思路：
mod 10获取最低位，除以10去掉最低位

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int sum = 0;
        while(n>0) {
            sum = sum + n%10;
            n = n/10;
        }
        sc.close();
        System.out.println(sum);
    }
}

201512-1 数位之和 Java

原文：https://www.cnblogs.com/yu-jiawei/p/12356015.html