LeetCode_344 反转字符串（Java版）

解题思路

首尾交换

代码

class Solution {
    public void reverseString(char[] s) {
        char temp;
        int start = 0;
        int end = s.length-1;
        while(start < end){
            temp = s[start];
            s[start] = s[end];
            s[end] = temp;
            start++;
            end--;
        }
        System.out.println(Arrays.toString(s));
    }
}