java练习！java练习

Question

输入一个正整数，每位非零数之积，例如:输入“1203”，输出“6”

Answer 1

package com;

public class Main {

    public static void main(String[] args) {
        String s = "1203";
        int res = 1;

        for (char c : s.toCharArray()) {
            if (c != '0') {
                res *= Integer.valueOf(c + "");
            }
        }
        System.out.println(res);
    }

}