Reverse words in a string | Leetcode problem 151

Reverse words in a String
Leetcode problem number 151
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[@rajdeeppatil3623]

such a sweet and simple solution, thank q mam.

[@inspiremusicandinspirephar5228]

hats off to your dediication towards your work and professionalism

[@TechnosageLearning]

Thankyou!!💐

[@anshumankumarnathshahdev3090]

thanks for the beautiful explanation . also your voice was very pleasent to my ears .

[@thulasiramans6338]

Your's teaching is excellant mam. Put more videos mam. And I humbly request to give time complexity for the each problem

[@godwinmensah1230]

Fantastic

[@naveennaidu4855]

How can we write without split function

[@vikasvarshney1681]

Good explanation.!!

[@Raja-py2lb]

Keep teaching mam😊

[@vivekmalviya3036]

Thank u mam

[@VinaySangem]

mam ,plz maintain git link to store all codes

[@ka23853]

Love your explanation ❤

[@shashiprakash-a2539]

Nice 👍👍👍👍 ma'am 🥰 you

[@VinaySangem]

mam why we are using + for s.split(" ");

[@kishnersuperbannumiyer7383]

+ means any number of spaces ko break krna

[@Jai_Jai_shri_Ram108]

In this question given space complexity: o(1)

[@amritabill3306]

Hello, The problem says, "if string data type is mutable in your language, can you solve it in place with O(1) extra space" Since here the problem is solved using JAVA, where the Strings are immutable in nature.

[@Jai_Jai_shri_Ram108]

@@amritabill3306 ok

[@kandukuriveeranikhil7328]

Mam while executing the same we are getting errors mam ( : , s,regex , its showing as illegal expressions ) and while we are taking the inputs from user also we are facing the issue

[@TechnosageLearning]

Hi Can you please copy the code from git repo and give it a try..you might be missing something while writing regex

[@rjsuryavanshi922]

no need to write regex as it is automatically done by ide in intelliJ

[@mohdarshad9427]

stack can be a better

[@ashokkumar-nb8ri]

Hi, I am trying to do reverse the words which is separated by dot. Here is an example and code String inp = " Welcome.to.Java.Programming "; static String reverseWords(String str) { String rev =""; str = str.trim(); String[] words = str.split("\\."); StringBuilder sb = new StringBuilder(); for (int i = words.length -1 ; i >= 0; i--) { sb.append(words[i]); sb.append("."); } return sb.toString().trim(); } Output: Programming.Java.to.Welcome. I could see dots are getting added for each iteration which makes the incorrect output. Could you please check and suggest me how to handle the situation

[@chetankumar5190]

you are appending dots that's why they are appearing sb.append(".")

[@ashokkumar-nb8ri]

⁠@@chetankumar5190 yes I am appending the dot, because input string is with dot. So I want to reverse the words and append the dots too. Like how they append the space in this video But my question is when appending its appending after last word also Check out the output in my comment

[@chetankumar5190]

More what, u want dot or not

[@ashokkumar-nb8ri]

@@chetankumar5190 I am expecting below output Programming.Java.to.Welcome

[@chetankumar5190]

Add condition If(i!=s.length()-1) sb .append(.)