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...
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)...
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...
// 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...
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! "
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...
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。
翻转字符串里的单词 | Reverse Words in a String Given an input string, reverse the string word by word. Example: Input: "the sky is blue", ... java基础——字符串中的反转Reverse问题(面试必备) 由于研究了关于字符串(String)的问题,今年就在这里总结一下,首先说一下有关于面试,我想的是,需要...
考虑几个特殊的情况 1.若字符窜s=" " 2.字符窜s=“a b d e” 3.字符窜s=“ a”然后在s后面+上一个‘ ’,每次遇到s[i]为空格,s[i-1]不为空格的时候为一个单词 class Solution { public: void reverseWords(string &s)...