题目:输入一个字符,然后把这个字符串反转输出

 

样例输入:

123459867565443

样例输出:

344565768954321

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        char[] arr = new char[str.length()];
        for (int i = 0; i < str.length(); i++) {
            arr[i] = str.charAt(i);
        }
        for (int min = 0 ,max = arr.length-1; min <= max; min++,max--){
            char t = arr[min];
            arr[min] = arr[max];
            arr[max] = t;
        }
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i]);
        }
    }
}

 

posted on 2020-08-23 10:01  墨问浮生  阅读(145)  评论(0)    收藏  举报