leetcode-344-反转字符串

Posted 2022-06-06 nxzblogs

问题：

 

package com.example.demo;

public class Test344 
    public void reverseString(char[] s) 
        // 双指针
        int left = 0;
        int right = s.length - 1;
        while (left < right) 
            char temp = s[left];
            s[left] = s[right];
            s[right] = temp;
            left++;
            right--;
        
    

    public static void main(String[] args) 
        Test344 t = new Test344();
        char[] arr = ‘a‘, ‘b‘, ‘c‘;
        t.reverseString(arr);
        for (char c : arr) 
            System.out.println(c);