[LeetCode]151. Reverse Words in a String

https://leetcode.com/problems/reverse-words-in-a-string/?tab=Description

反转单词

public class Solution { public String reverseWords(String s) { StringBuilder sb = new StringBuilder(); // 避免string之中空格的情况，先trim一下 String[] arr = s.trim().split("\\s+"); for (int i = arr.length - 1; i > 0; i--) { sb.append(arr[i] + " "); } return sb.toString() + arr[0]; } }