publicString reverseWords(String s) { if(s ==null|| s.length() ==0) returns; intindex =0;//the pointer to traverse intlen = s.length(); Stack<String> stack =newStack<String>();//堆栈,先进后出,顺序存入单词,逆序输出 StringBuilder sBuilder =newStringBuilder();//记录每一个单词 char[...
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...
Output: "example good a" Explanation: You need to reduce multiple spaces between two words to a single space in the reversed string. Note: A word is defined as a sequence of non-space characters. Input string may contain leading or trailing spaces. However, your reversed string should not ...
welcome to my blog LeetCode Top Interview Questions 557. Reverse Words in a String III (Java版; Easy) 题目描述 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: ...
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上直接进行修改而不使用额外空间。 为了曲线救国,继续用 java 实现,我们先将String转为char数组,所有的操作都在char数组上进行。 char[]a=s.toCharArray(); 至于算法的话,参考了这里。
On Crunchify, we have published more than 500 Java Tutorials and in this tutorial we will go over steps on how to reverse a string in Java? There are 7
Java Code: // Importing the required Java utilities packageimportjava.util.*;// Defining a class named SolutionpublicclassSolution{// Method to reverse the words in a given stringpublicstaticStringreverse_str_word(Stringinput_sentence){// Checking if the input string is nullif(input_sentence==nu...
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" ...
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