String[] each_words = str1.split(" "); String revString = ""; // Iterate through each word in the array. for (int i = 0; i < each_words.length; i++) { String word = each_words[i]; String reverseWord = ""; // Reverse each word character by character. for (int j = wo...
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...
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 contain leading or trailing ...
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. ...
#include<string>#include<algorithm>usingnamespacestd;classSolution{/** * @param s : A string * @return : A string */public:stringreverseWords(strings){stringss;//从后往前遍历sinti = s.length()-1;while(i>=0) {//跳过多余的空格while(i>=0&&s[i] ==' ') { i --; }if(i<0)bre...
1. Java Program to Reverse the Characters of a String We canreverse a string by charactereasily, using aStringBuilder.reverse()method. StringblogName="HowToDoInJava.com";Stringreverse=newStringBuilder(string).reverse();System.out.println("Original String -> "+blogName);System.out.println("Rever...
Learn to reverse all the characters of a Java string using the recursion and StringBuilder.reverse() methods. In this Java tutorial, we will learn toreverse the characters of a stringusing therecursionandStringBuilder.reverse()methods. You may like to read aboutreversing the words in a sentence...
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...
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