// Importing necessary Java utilities.importjava.util.*;// Define a class named Main.publicclassMain{// Method to reverse words in a given string.publicstaticStringWordsInReverse(Stringstr1){// Create a StringBuilder object and reverse the entire string.StringBuildersb=newStringBuilder(str1);Strin...
正则表达式,\s表示空格,+表示至少一个空格,这样就可以将多个空格分隔的word提取出来了 1 2 3 4 5 6 7 8 9 10 publicString reverseWords(String s) { String[] words = s.split("\\s+");// regular expression StringBuffer sb =newStringBuffer(); for(inti = words.length -1; i >=0; --i)...
Reverse Words in a String (JAVA) Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 1publicclassSolution {2publicString reverseWords(String s) {3if(s.equals(""))returns;4String arr[]=s.split(" ");5Strin...
151. Reverse Words in a String Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue" **Output: **"blue is sky the" Example 2: Input: " hello world! " **Output: **"world! hello" Explanation: Your reversed string should not contain leading...
Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. Example 1: Input: "Let's take LeetCode contest" Output: "s'teL ekat edoCteeL tsetnoc" ...
LeetCode 151. Reverse Words in a String (Java版; Medium) 题目描述 Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue" Output: "blue is sky the" Example 2: Input: " hello world! "
For C programmers, try to solve itin-placeinO(1) extra space. 如果用 C 语言,试着不用额外空间解决这个问题。 我们一直用的是 java,而 java 中的String变量是不可更改的,如果对它修改其实又会去重新创建新的内存空间。 而C 语言不同,C 语言中的string本质上其实是char数组,所以我们可以在给定的string上...
https://leetcode-cn.com/problems/reverse-words-in-a-string/ 代码随想录 2021/07/16 8270 String - 186. Reverse Words in a String II javacharacterinputspaceword Given an input character array, reverse the array word by word. A word is defined as a sequence of non-space characters. ppxai...
LeetCode: 151. Reverse Words in a String 题目描述 Given an input string, reverse the string word by word. Example: Note: 解题思路 获取用空格分割开的单词,然后将他们的倒序插入结果串中。 AC 代码...LeetCode 151. Reverse Words in a String Given an input string, reverse the string word ...
Reverse Words in a String: Given an input string, reverse the string word by word. For example, Given s = “the sky is blue”, return “blue is sky the”. 把句子看做由词组成的,例如“A B C”,因此可以将句子的所有字符前后交换,得到“C’ B’ A’”。显然X‘表示逆序的词X,所以第二...