How to Reverse a String - Java Interview Question -1

[@naturegallery1348]

Enga jii irundhinga ivlo naala.. Very nice Thanks and keep rocking.

[@khajazakiuddin931]

One of the best explanation for the concept of immutable. Thanks a lot Naveen. Many interviewers have asked this question,

[@yojanarahangdale4862]

Hi, Naveen your all videos are very helpful. Thanks a lot, I cleared many interviews and many interviewers ask the questions which are covered by you.

[@garimayadav2790]

Best explanation ever for reversing the string... Thanks a lot Naveen :)

[@manojannamalai724]

Good explanation about how to reverse the I have ever heard

[@artimandale8286]

Very well explained, crystal clear . Thanks a ton, Naveen

[@SurajSaini]

Your every line in every video is true, in one interview some one ask this question, I told her , we can use reverse method, after that she told me u can wait outside HR will give feedback :( but now I can give proper answer :)

[@gangadharreddy4606]

Thank you so much for this series..... much needed for the community. tq.

[@anils1993]

Thank you Naveen. These program asked in interview and i cracked it.

[@harshita0302]

Sir I am big fan of your explanation.I would say that you are god of testing and your approach towards concept explanation is impeccable

[@anushasrinivas564]

Commenting first time in KZbin...... U r doing a great job sir 👏👏👏👏understood clearly

[@naveenautomationlabs]

Appreciate your comments and feedback. Keep learning Anusha.

[@anushasrinivas564]

@@naveenautomationlabs Sure Sir.... Thank you 😊Sharing the videos to my friends as well

[@goaheadskinit]

Just randomly came across your channel and your videos are extremely helpful. Thank you so much🙏🏻

[@saurabht09]

Naveen is the king in Automation...his video gives you confidence that you can achieve everything in Automation testing..we all should thanks him for helping us👍❤️

[@4sacademy433]

It's the right time I found you 👍🧠👌, where you gone man!🔥

[@bheemshankar_pk]

For the first I got to know this for loop logic great explanation sir thank you

[@prashanthiskvl1885]

This is very clear naveen. Thanks for explaining line by line

[@naveenautomationlabs]

Thanks for watching :)

[@harrysaini2326]

thanks naveen for starting this series , make more videos on java programs and questions for selenium interview

[@mdshakhawathossain7256]

i wanna say u are my boss... thanks a a lot..

[@nareshreddy69]

Good Explanation Naveen.... :) BTW Just this line also will work for (int i=len-1;i>=0;i--) { System.out.print(s.charAt(i)); }

[@sauravhateme]

For reversing a string i always use recursion, because recursion utilizes stack data structure to save every characters. We just need to pop, the last chracters coming out and print the chars. I love these concepts!! @naveen ! 🙏🏻

[@piyumigunawardana4610]

in fact i did say, 'yes' when the interviewer said 'we can use reverse function, right?' now i know, why i wasnt selected from it 😂😂

[@oopsididitagain8572]

Thanks Naveen. Again and again I have the same question "How can a human dislike this video? "

[@bhaskarreddy9042]

thanks naveen for starting the series , make more videos on java interview questions(logical questions ), it will be more useful

[@PankajKumar-qk8oh]

Great explanation..pls upload more coding interview questions

[@nitingupta82]

Thank You for making it look like such a Simple program!

[@naveenautomationlabs]

Thanks for watching

[@nishantrajput4183]

nice, thanks for this video it helps me with my revision of String

[@kirind7181]

Thanks for the clear explanation! very easy to understand :)

[@babitathakur950]

Hi naveen, really appreciated your hard work here. Amazing videos these are!!! I have learnt a lot. Please can you help me get get more sample java programs being asked in interviews. Thanks

[@nikhilgosavi4300]

Thank you for this..saved my life🥰

[@arijitmohapatra147]

Thanks a lot sir 👍 really the best vdo evr ❤️❤️

[@sunayanagandra7173]

Thanks for helping people who are interested to learn java. Can you please post more java coding interview questions for automation

[@nikhiltillu6201]

Nice video, good help! Thanks

[@dabbark]

Nice explanation. Thanks for the video.

[@kirankumarmothukuri7660]

Very good explanation bro.....Keep rocking I have subscribed your channel with this one video.

[@saurabht09]

Genius Naveen 👍🙏🙏

[@SmartProgramming]

sir good one, keep it up 👍👍

[@AKHILDS-j3v]

nicely explined...thanks naveen sir

[@arpitapatil5109]

Well explained sir tq

[@thewildone1015]

I'm glad I found you

[@shreyagarg2848]

Naveen, please share videos for triangle pattern. This video is super easy to understand.

[@tanishasharma7542]

your explanation way is simple and easy. thanks:)keep sharing more videos on java interview..can you also start sharing about puzzles ---> 2 egg problem and 011111 matrix

[@sushkund4198]

Hi Naveen These videos are great and I really appreciate your efforts. Thanks a lot for the great videos. Help Needed: Can you please provide C# related interview preparation videos. It helps a lot.

[@Wabi258]

thanks, bro it clear my all of my confusion

[@mudaseer21]

Nice explanation

[@soumyabohre1484]

Very well explained

[@jeyhunaliyev1765]

great the way you explaining fantastic

[@sai3327]

StringBuffer S = new StringBuffer("Selenium"); System.out.println(S.reverse()); Also applies to buffer and builder a bit shorter way

[@saurabht09]

Second one is very simple ❤️❤️

[@prakharsrivastav9416]

Thank you sir I appreciate your effort

[@rakesjjjjj]

naveen plz make some videos on sql used in manual testing plzz

[@sarjeraosandbhor4478]

Hi Naveen, Very nice & now feeling confident about Java & Automation with the help of your videos. Thanks. Can you please share a Java Program to Reverse words in a sentence. Ex. Java is so easy Ans. easy so is Java

[@rockgemini]

Printing inside the loop works if we use print() instead of println(). e.g. this: for (int i=s.length()-1; i>=0; i--){ System.out.print(s.charAt(i)); }

[@emilioalvarado7720]

that is a perfect explenation

[@sumitkumar-xz2tv]

best explanation

[@USP7]

Currently working as Test Lead in MNC, looking forward to learn qlikview Developer course . Please suggest should I go ahead.

[@santhoshthaduri899]

Thanks naveen, make a video for print dupilicate elements using recursive function

[@joshuajibi4249]

thanks bro awesome explanation

[@இன்பதேன்வந்துபாயுதுகாதினிலே]

Phenomenal

[@ashwinkumarmahakul7620]

HI Naveen pls release video related exception handling in java .

[@seasam13]

Thanks for all your Knowledge

[@arunc8342]

Hi Naveen, What is the difference between string builder and string buffer. We can use string builder as well to reverse the string.

[@sultanatasneem1787]

Thank you so much 😍

[@sambhawjain2201]

Hi Q - where use the static class in framework in selenium

[@kollabathulasowjanya1610]

Hi Naveen, even using stringbuilder class and its reverse function we can reverse a string?

[@littletech5828]

series for only tester or developer?

[@vaalibankarthick7290]

Hi Naveen, Could u execute Fibonacci series

[@amolnawale2177]

Hi Naveen, If I want the reverse output of the String 'Hello Naveen' as 'olleH neevaN' instead of 'neevaN olleH', then how do we do that?

[@vishalgaikwad873]

same here Naveen.

[@jeffreysoboe]

You would have to first split the string on the " "... then reverse each individual word.

[@FAyt-ov5uo]

Very helpful thank you

[@poojachavan9597]

Thanks Naveen sir

[@sufidas9458]

Hi Naveen, I like all your videos and learned a lot from your videos. I have 1 question about reverse string. Srtring=" selenium" your taking, while reversing the string I want "u" not to be printed. Can you please let me know.

[@mozesong5264]

use an if statement to check if the char == u then char = ""

[@nikhiltillu6201]

String s = "Selenium"; int len = s.length(); String rev= ""; char ch; for(int i = len -1; i>=0; i--) { ch = s.charAt(i); if(ch != 'u') { rev = rev + ch; } } System.out.println(rev);

[@AjeetSingh-ti2yg]

Hi Naveen, String s= "my code is not working" hear I .... 'My and working 'should revers and 'code is not 'should be upper case but it should not revers could you please suggest me what is approch for this Thanks in advance

[@venugopal548]

Please cover all these too: marshalling, transient, serialization, serialized keyword

[@prakashmarketing]

class ReverseString { public static void main(String args[]) { String str="Hello World"; StringBuffer br=new StringBuffer(str); br.reverse(); System.out.print(br); } }

[@shreyashikha3506]

If we don't use string reverse =" "; then what will happen ?

[@ozzDeveveloperOpenForWork]

great explanation thank you! but why do we need to assign an int and do length? why cant we do the for loop and just let it reverse it. Whats the concept behind taking the length of the string in int data?

[@sharanyabhiram3601]

I have one java programming question to solve I give Input as 5 And type random binary numbers as input 1 0 1 1 1 My output should convert that binary number to decimal number 23

[@ujjwalverma7787]

sir, please help me i really confuse between them what is the difference between the "array.length and array.length()" some time array.length will work and some time array.length() will work. is there is any rules for is for using it? with String arr.length() will work but when we use an integer type, its work with array.length.

[@sachinhodlur7193]

Hi, length. It is a final variable applicable only for arrays It represents size of array For example Int[] a = new int[10]; Sop(a.length); //10 Sop(a.length()); // compile time error length(). It is a final method applicable only for String Objects It represents the number of Characters present in String For example String s ="Java"; sop(s.length()); //4 Sop(s.length); // compile time error

[@sardarnijaspreetkaur4273]

Does this series still holds good in the market ?

[@MBindu-kc2nj]

Thank you

[@shindeajinkya2506]

Sir i had a doubt lenght of a string is 7 then in loop condition when we minus it by 1 then it should start the printing from "U" or I'm wrong plz clear my doubt.... I am really confused in that condition 😕

[@naveenautomationlabs]

You have to start with len-1. As first Index will start from zero always.

[@shindeajinkya2506]

@@naveenautomationlabs thank u sir I really appreciate it ❤💯

[@shindeajinkya2506]

Sir will u plz make a separate video on "interface - implement " and plz Don't mind me ,if I'm asking too much bcz they're asking really tougher questions on these concepts(interface,implement, inheritance, overriding etc)

[@Bharath10121991]

Very nice..... I can't able to watch in Mobile... The letters are very small.... Any other options to view in Mobile?

[@bholasinghdhillon7857]

public static void main(String args[]) { String s = "abcd123"; char[] Array1 = s.toCharArray(); char[] Array2 = new char[Array1.length]; char digit; int j=0; for (int i = Array1.length - 1; i >= 0; i--) { digit = Array1[i]; Array2[j]=digit; if(j

[@govindagupta7821]

make video for the concept of subArray

[@davidparker5530]

I would say this solution is generally incorrect because it does not take into account the character encoding of Java (UTF-16). You should preserve the relative ordering of UTF-16 surrogate pairs, i.e. this method fails to correctly reverse a string of code points outside of the basic multilingual plane, c.f. emoji characters. In Java, the StringBuilder/StringBuffer classes already account for this if you use the reverse() method, so your "second" solution would work in this case.

[@naveenautomationlabs]

Yea you are right. Emojii chars can be handled by stringbuffer.

[@WriteToProfit]

Naveen sir already tested program output is still there 😜😜

[@vinodkumar-yt6te]

hi naveen, this code available in github ? can share the path

[@sunivana-tv]

Thanks!

[@namratayadav7721]

HellO how to purchase this course

[@kavyak6981]

how to reverse the statement Naveen ? india is my country -> o/p to be country my is india // how to do this . all your videos are understandable could you make more videos on prog on java for interview question .

[@harikareddy5412]

you can split the statement by spaces and store them into a string array. Then start reading the array data from last index to first using a for loop, take a new string variable and concatenate each word. By end of the for loop execution, new string variable will have the output in the format which you mentioned.

[@mariabajwa8632]

thanks

[@krunalsathawane3337]

how to reverse the string using junit

[@naveenbandi4535]

"Hai naveen Java" in the given string how to reverse "hai" and "java" keep "naveen" in the same order, can you please write a code for this

[@ShinAkuma]

Here's a more efficient method. If you create a String object and keep adding letters to it, it will create n new string objects every time you append a new letter i.e. String rev = ""; rev += "A"; This creates a new object every time you append a letter. Better way is to convert the string into a character array and reverse the array by swapping first and last letters and moving the pointer inwards from both ends, this way you can reverse the string in O(n/2) time. static String reverse(String s) { char[] ar = s.toCharArray(); int l=0; int r=ar.length-1; while(l < r) { char t = ar[l]; ar[l] = ar[r]; ar[r] = t; ++l; --r; } return new String(ar); }

[@kalyanijoshi6884]

Please add prime number program too.

[@jneeraj2011]

Zooming could help us to see in phone..size is very small

[@sai3327]

String s = "Selenium"; String reverse = ""; for (int i = s.length() - 1; i >= 0; i--) { reverse += s.charAt(i); } System.out.println(reverse); why not make the code a bit shorter?

[@mariashiny7309]

Words are blurred. Not able to view it clearly

[@naveenautomationlabs]

You need to change it to HD quality in your KZbin. No issues with the video.

[@premsinghrathore9691]

String s = "madam", newString = ""; for (int i = s.length() - 1; i >= 0; i--) { newString = newString + s.charAt(i); } System.out.println(newString);

[@aura7117]

ok

[@Czarkazmx]

It is no longer StringBuffer its StringBuilder

[@ashwinib5017]

Both worked for me , StringBuffer and StringBuilder

[@aryanpancholi8385]

lol.. I made this work within 2 lines.... check it out........... for( int i=(s.length()-1);i>=0;i--){ System.out.print (s.charAt(i)); }

[@naveenautomationlabs]

Watch the full video, I did the same.