StringBuffer里面的reverse方法

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

// TODO Auto-generated method stub

       Scanner sc = new Scanner(System.in);

       StringBuffer s = new StringBuffer(sc.nextLine());

       System.out.println(s.reverse());

}

}