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[] characters = s.toCharArray(); while(index < len){//遍历字符串 for(;index < len && characters[index] ==' '; ++inde...
2. Reverse usingStringBuilder.reverse() We can also reverse a string easily, using aStringBuilder.reverse()method. Thereverse()method causes the characters of String to be replaced by the reverse of the sequence. Reverse String using StringBuilder StringblogName="How To Do In Java";Stringreverse...
Input: "a good example" **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...
What constitutes a word? A sequence of non-space characters constitutes a word. Could the input string contain leading or trailing spaces? Yes. However, your reversed string should not contain leading or trailing spaces. How about multiple spaces between two words? Reduce them to a single space...
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. ...
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...
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 ...
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...
Java Code:// Importing necessary Java utilities. import java.util.*; // Define a class named Main. public class Main { // Method to reverse each word in a given string. public void reverseEachWordInString(String str1) { // Split the input string into individual words. String[] each_...
void swapString(string &s, int begin, int end) { while(end > begin){ char c = s[begin]; s[begin] = s[end]; s[end] = c; begin++; end--; } } string removeDuplicateSpace(string s) { string res; int begin = 0; for(; begin < s.size(); begin++) { if(s[...