201512-1 数位之和 Java

2024-09-07 05:19:32

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);

	}

}

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