题解 | #字符串反转#

import java.util.Arrays;
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()){
            String value = scanner.nextLine();
            char[] array = value.toCharArray();
            //双指针法
            int start = 0;
            int end = array.length - 1;
            while(start<=end){
                char temp = array[start];
                array[start++] = array[end];
                array[end--] = temp;
            }
            System.out.println(String.valueOf(array));
        }
        
    }
    
}