LeetCode60|反转字符串

示例 1：

输入：["h","e","l","l","o"]
输出：["o","l","l","e","h"]
示例 2：

输入：["H","a","n","n","a","h"]
输出：["h","a","n","n","a","H"]
 

 
public class ReverseStringTest {
    public static void main(String[] args) {
        char[] s = {'h', 'e', 'l', 'l', 'o'};
        reverseString(s);
    }

    public static void reverseString(char[] s) {
        if (s == null || s.length == 0) {
            return;
        }
        int length = s.length;
        for (int i = 0; i < length >> 1; i++) {
            char temp = s[i];
            s[i] = s[length - i - 1];
            s[length - i - 1] = temp;
        }
    }
}