编写题解 1031: [编程入门]自定义函数之字符串反转

import java.util.Scanner;

public class Main {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       String str = sc.nextLine();
       StringBuffer str1 = new StringBuffer(str);
       System.out.println(str1.reverse());
   }
}