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)...
1publicclassSolution {2publicString reverseWords(String s) {3if(s.equals(""))returns;4String arr[]=s.split(" ");5String new_word="";6for(inti=arr.length-1;i>=0;i--)7{8if(arr[i].equals(""))continue;9new_word+=arr[i]+" ";10}11new_word=new_word.toString().trim();12re...
publicStringreverseWords(Strings){if(s==null)returnnull;char[]a=s.toCharArray();intn=a.length;// step 1. reverse the whole stringreverse(a,0,n-1);// step 2. reverse each wordreverseWords(a,n);// step 3. clean up spacesreturncleanSpaces(a,n);}voidreverseWords(char[]a,intn){int...
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" Note: In the string, each word is separated by si...
Reverse Words in a String Difficulty: Medium More:【目录】LeetCode Java实现 Description Given an input string, reverse the string word by word. Example: Note: A word is defined as a sequence of non-space characters...**Leetcode 151. Reverse Words in a String https://leetcode.com/...
Reverse Words in a String III ...LeetCode 557 Reverse Words in a String III 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......
is nothing but a sentence, which may contain multiple works, or just contain a single word or it may beempty. Your program must produce a String that contains the word in reverse order, for example, if the given input is"Java is Great"then your program should return"Great is Java". ...
151. 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”. Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space....
System.out.print("Reversed string : "+ reversedString); } } Program output. Original string : I love java programming Reversed string : I evol avaj gnimmargorp 2. Reverse the words in string In this java program, we will reverse the string in such a way that each word’s characters ...
557. Reverse Words in a String III Easy 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" ...