L&T java Interview real interview recorded || Java8 spring springboot microservices Oauth

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[@procoder2604]

Worst interviewer I have ever heard of...No interviewer laughs at the answers of the interviewee...Also, this GENIUS himself does not have in-depth knowledge of what he is asking... Seriously... how L&T is hiring these guys and also allowing them to take interviews ??? ...

[@dhivyadelphina2293]

Optional class helps to avoid null pointer exception in java 1.8

[@manishsakariya4595]

String s=null; s.equals("foobar"); this will compile but you will get runtime null pointer exception. may be use optional!

[@satyanarayanasheelam7014]

No need to think much and no need to use any higher version's features of java to avoid NPE. Just simply use a logic like this "foobar".equals(s). It solves.

[@mgowtham3440]

Concurrent synchronised hashmap 😂 Really..Interviewer tries to show off but most of the time he himself not clear about the concepts.

[@shankars4281]

@32:30 Concurrent synchronized hashmap?! Looks like Interviewer created a new data structure during interview!

[@amitattrash]

/*Code Snippet - 2 with Solution(Based on what i heard in the video - Admin Can confirm)*/ public class NullEqualityDemo { public static void main(String[] args) { String text = null; Object obj = null; if(text==obj) { System.out.println("equal"); }else { System.out.println("Not equal"); } } } Output: equal

[@amitattrash]

/*Code Snippet 1 - Solution(based on what I heard in the video- Admin can confirm on this )*/ import java.util.Optional; public class NullCheckDemo { public static void main(String[] args) { String text =null; // using constant to invoke equals method if("hello".equals(text)) { System.out.println("hello"); } // using null check if(text != null && "hello".equals(text)) { System.out.println("hello"); } // Using Optional Optional textOptional =Optional.ofNullable(text); if("hello".equals(textOptional.orElse(null))) { System.out.println("hello"); } // alternative using Optional textOptional.ifPresent(str -> { if ("hello".equals(str)) { System.out.println("hello"); } }); } }

[@abiramikesavaraman7277]

It will be good if u r able to capture ur screen also 👍

[@manishsakariya4595]

I think datastructure and algorithms is the way to check someones logical ability. frameworks can be learned easily in 4-5 days.

[@JavaTechies]

True, but I haven't used graph in any of my professional project

[@ILuvBilli]

U can learn springboot framework in 5 days??

[@solorankerone]

@@ILuvBilli lol he can it seems 😹

[@solorankerone]

May be some basic security + simple rest api flow with jpa.

[@shankars4281]

@@ILuvBilli Yes, provided one is a Rajanikanth!

[@sumitrashmi4500]

rest can be written in jax-rs,restlet,resteasy and all

[@DurgaShiva7574]

thankyou for the vide, but it could had been of more help if we could see what they are typing, or code could be added during video editing

[@nikhilm4290]

Interviewers in USA are very cool!

[@techguru6385]

I heard her voice in so many interviews

[@kasiyedumati9423]

Will u be able to share code snippets they have in given in interview, please

[@sushiltiwari274]

Basically he was asking regarding equals method you were correct regarding null pointer exception but still you can run that code reversing that code

[@JavaTechies]

Thanks

[@pste22]

you did not share the code snippet that was asked, esp the map problem that he asked. can you plz ?

[@abhilashpatel6852]

The intro you gave was good.

[@JavaTechies]

Thanks

[@harinimuthu8559]

I'm counting your basically and actually

[@JavaTechies]

😀

[@raja812com]

Simply u need to add if(s!=null) then s.method()

[@JavaTechies]

Thanks

[@Silly_My_name]

not good, What if s2 is null?? better approach is, don't use null.equals() as null is not an abject so it will give NPE. equals() belongs to object method Thats what question is all about.

[@AlivHasan]

I think the guy is being rude, from Chennai 😂 !!! *pun intended

[@karamjitsinghsehdev3451]

Bit difficult to understand without looking at the given problem.

[@nenuanenenuane6645]

Plz start interview series again

[@JavaTechies]

Yeah, planning to start

[@shivendramohanraina6194]

please suggest some realtime interview of java 8 microservices springboot including aws and kafka

[@JavaTechies]

Sure, will create one soon

[@sumitrashmi4500]

outh2 we will use clientid and client secret

[@lazyjavaprogrammer614]

Optional Class is the collection with only 1 entry in that and can used with streams API along with handling of NPE.

[@sonalimahajan7827]

Interviewer was so so so rude to you..seems like he was definitely from chennai :(

[@atulchauhan4439]

Yes looks so 😄

[@amitattrash]

/*Code Snippet -3 with Solution (Based on what i heard in the video- Admin can confirm)*/ import java.util.Arrays; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.function.Function; import java.util.stream.Collectors; public class NumberCountDemo { public static void main(String[] args) { //Count the number of occurence of each element List numberList = Arrays.asList(1,2,3,4,5,3,4,2,1,5,2,3,4,5); //using Streams Map numberCountMap = numberList.parallelStream().collect(Collectors.groupingBy(Function.identity(),Collectors.counting())); System.out.println(numberCountMap); //using structured approach Map elementCountMap = new HashMap(); for(int num : numberList) { if(elementCountMap.get(num) == null) { elementCountMap.put(num, 1); }else { int count = elementCountMap.get(num); elementCountMap.put(num, count+1); } } System.out.println(elementCountMap); } } Output: {1=2, 2=3, 3=3, 4=3, 5=3} {1=2, 2=3, 3=3, 4=3, 5=3}

[@rexsam3134]

For a small collection data why did you choose parallelStream

[@grimsri3782]

Stream approach to doing this for more than 10L data is taking 12min but the hashmap approach resulting in 7-8min always for me.

[@souvaniksaha]

Great solution but still it got space complexcity of O(c)

[@amitattrash]

Thanks for sharing your experience. It was really helpful :)

[@JavaTechies]

Thanks 👍

[@gunjanshrivastava8372]

Do you recall code snippets?

[@UTUBDZ]

Can you share those snippets ?

[@arjunbenure4847]

2 types of JAX-RS Restfulwebservice and jersey

[@rexsam3134]

Jax rs is Restful

[@javedutube10]

Actually ..Basically...you are cute :)....bravo girl......Keep it up.

[@asishkumarsatapathy3466]

I guess this interviewer needs to chill a little bit. Looks like he is having a little bit of God Complexity.

[@aditipai7289]

He was mean. He will definitely be a difficult boss to work with

[@pavanch3228]

Interviewers has to change the mind set while doing the interviews if possible help the candidates and explain the things some interviewers doesn't know what question they are asking...

[@JavaTechies]

True

[@JavaTechies]

Conducting an interview also needs training.

[@rexsam3134]

Not necessarily if there are candidates are lined up. 30 min is a very short time

[@happyplease4093]

I can only hear actually n basically 🤣🤣

[@Mee44162]

can u show the code part the interviewer asking

[@arunkumarsanthanam8696]

Is null pointer exception is compile time? 😕 11:30 15:00 oh Mad

[@sethuramanramaiah1132]

Null pointer is run time exception..compiler has nothing to do with run time exception..I think interviewer is confused af..pity the interviewe here

[@whopradeep]

@@sethuramanramaiah1132 no actually the candidate was confused in the beginning she said it will be compile time error then she changed her answer to runtime exception

[@surajmahato2557]

Interviewer tried to trap her in his question and she got trapped

[@9675A]

Interviewer is rude.. hard to work with such people..

[@JavaTechies]

Yes

[@jeebanpradhan8050]

Plz activate subtitles

[@sumitrashmi4500]

Spring Rest

[@TauseefAmeen121]

Too much basically in answer 😜😜

[@sandeepikaenagaluru8462]

Interviewer is so rude.. huhhh:)

[@subir456]

The interviewer was damn rude!

[@lipikatia]

Yess he was too rude to handle

[@jeevithatd9221]

Can you share the code snippets

[@JavaTechies]

I don't have these right now. I ll hear the video again tomorrow and try to recall and then I ll provide.

[@sivakumar-e6r]

He does not know about all concepts and i think he never worked on what he is asking questions.

[@JavaTechies]

Yes, that is fine.

[@saidurgasrividyaupadhyayul4675]

what are reactive extensions?

[@JavaTechies]

not sure of reactive extensions.

[@swatibabar7860]

Selected in L and T ?

[@JavaTechies]

@swati Babar, no I didn't get selected in this round

[@Koustavrocks]

why he has to be so rude

[@seekhjava]

its JAXRS 🤣

[@mandeepsharma8305]

I think Interviewer was a beginner. He need to work on his skill.

[@JavaTechies]

Yo

[@rajatgupta1661]

yeah...He is trying to be oversmart and speaking on top of candidate before she could even complete her thought...Just hate these type of idiots...he himself will fail miserably in any quality distributed interview.

[@Arrbee2016]

rude af interviewer

[@naraharimounika3306]

Too much humiliation 🙄

[@JavaTechies]

It happens

[@mohammedrahamathulla4040]

Attitude of the interviewer wasn't ethical. Show-off from him. Really bad 👎😡