题解 | #字符逆序#

使用StringBuilder 字符串反转

import java.util.*;

public class Main{
    public static void main(String [] args){
        getReverse();
    }
    public static void getReverse(){
        Scanner scan = new Scanner(System.in);
        StringBuilder input = new StringBuilder(scan.nextLine());
        input.reverse();
        System.out.print(input);
    }

}