【Leetcode】Reverse Words in a String

题目链接：https://leetcode.com/problems/reverse-words-in-a-string/

题目：

Given an input string, reverse the string word by word.

For example,
Given s = "the sky is blue",
return "blue is sky the".

思路：

easy

算法：

public String reverseWords(String s) {          String ss[] = s.trim().split("\\s+");          for (int i = 0; i < ss.length / 2; i++) {              String tmp = ss[i];              ss[i] = ss[ss.length - 1 - i];              ss[ss.length - 1 - i] = tmp;          }          String res = "";          for (String tmp : ss) {              res += tmp + " ";          }          return res.trim();      }