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Top Tricky Java Interview Questions and Answers | Java Interview Questions and Answers | Code Decode

Top Tricky Java ,Spring, Hibernate Interview questions and answers for both freshers and Experienced by Code Decode
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Пікірлер: 101

  • @swapnilbagul7502
    @swapnilbagul75023 жыл бұрын

    Recently ,I had a interview for JAVA... And interviewer asked the difference between the security provided by abstraction and Encapsulation......could you pls answer it....

  • @rajasekharb4667
    @rajasekharb46673 жыл бұрын

    Could you please explain the scenarios in realtime applications where we use these Factory Design pattern and Abstract Design pattern

  • @saivamsi4811
    @saivamsi48112 жыл бұрын

    You are giving really a wonderful content to the people. Thank you So much .A small suggestion from my side is a small snipped of code can be shown along with audio. That will give a better picture of the topic.

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Thanks Sai. Sure, we have live demos in all videos except these quick interview Revision questions . We prepared them just have a quick look before interview. You don't even have to look at your phone number still u have your quick revision done. Rest all videos have Java code demonstrated 🙂👍

  • @croydon21H
    @croydon21H5 ай бұрын

    Well done. I like (majority of) the questions. Interviews in India need Q & A type like this. In overseas people ask questions from their project to know the interviewee ideas from a practical point of view.

  • @RussianCyclop
    @RussianCyclop2 жыл бұрын

    Thank you for your videos. A little note on this one, your info about bean scopes is outdated, there are 6 bean scopes now and there is no more global session scope.

  • @chandrarami1767
    @chandrarami1767 Жыл бұрын

    Good thumbnails are good to entering into ur video...and u explain good with example....i just stick to till end....thx lot for ur thumbnails

  • @CodeDecode

    @CodeDecode

    Жыл бұрын

    🙂thanks Chandra 👍👍

  • @monikadhaterwal8285
    @monikadhaterwal8285 Жыл бұрын

    Please also show answer on screen . Sometimes getting problem in understanding

  • @CodeDecode

    @CodeDecode

    Жыл бұрын

    Sure Monika 👍

  • @CodeDecode

    @CodeDecode

    Жыл бұрын

    Anything like : kzread.info/dash/bejne/p4l3mcWkmsqvj9I.html

  • @RamzanAli-vr1ww
    @RamzanAli-vr1ww3 жыл бұрын

    Please, Create more videos for this, It was very helpful.

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Ramzan 👍thanks

  • @adwaitamohanty5049
    @adwaitamohanty50493 жыл бұрын

    Helpful for Interview Preparation. Please continue. Mam, could you please explain little more about hashmap changes on 1.8 I.e. what is that threshold value at which the Linkedlist changes to Balanced Tree.

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Adwaita, we will create seperate video on this java 8 enhancement. 👍👍

  • @adwaitamohanty5049

    @adwaitamohanty5049

    3 жыл бұрын

    @@CodeDecode okay. Thanks for your quick reply.

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Any time 👍👍🙂🙂

  • @sandeephr6298
    @sandeephr62983 жыл бұрын

    Hi , I have been following all your videos and it's amazing and very helpful , can you please create a tutorial on micro-service docker with MySQL

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    kzread.info/head/PLyHJZXNdCXsd2e3NMW9sZbto8RB5foBtp

  • @nagalakshmikesavan9198
    @nagalakshmikesavan91983 жыл бұрын

    Hey Thank you soo much for the video!! Can you explain Why optional class instead we can check for null using == ? This was asked in an interview

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    the Optional class includes methods to explicitly deal with the cases where a value is present or absent. However, the advantage compared to null references is that the Optional class forces you to think about the case when the value is not present.

  • @nagalakshmikesavan9198

    @nagalakshmikesavan9198

    3 жыл бұрын

    @@CodeDecode Thank you!!

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    @@nagalakshmikesavan9198 👍👍🙃

  • @kan123ish
    @kan123ish3 жыл бұрын

    Anyhow we are using the != for checking the null pointer exception, then what is the need of using the optional class in java

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    the Optional class includes methods to explicitly deal with the cases where a value is present or absent. However, the advantage compared to null references is that the Optional class forces you to think about the case when the value is not present.

  • @kan123ish

    @kan123ish

    3 жыл бұрын

    @@CodeDecode can you please explain in real time or with the example

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    @@kan123ish sure Keerthana we will create seperate video for that. 👍👍

  • @jabirshariff7378
    @jabirshariff73783 жыл бұрын

    Another great and useful video. . 😊 Ma'am you said Tuesday you will upload next video on microservices.. Waiting for that.. 😔

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Right Jabir. But got stuck with this video. We are so sorry. We are working IT professionals, it's difficult to spare time for 2 videos in weekends. But it's almost ready we will put that video this week for sure. Thanks for bearing with us 👍👍

  • @jabirshariff7378

    @jabirshariff7378

    3 жыл бұрын

    @@CodeDecode Thank you for the update ma'am:)

  • @AshutoshMohanty07
    @AshutoshMohanty073 жыл бұрын

    That was a nice and simple explanation about HashMap enhancement, Spring AOP and Garbage Collection enhancement. Can your team create some interview question on DS & Algo ? Thanks again for providing the informative content!

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Ashutosh, ds algo is in pipeline 👍👍🙂🙂

  • @suryanshraghuvanshi9761
    @suryanshraghuvanshi97613 ай бұрын

    these types of question generally get asked in interviews

  • @CodeDecode

    @CodeDecode

    3 ай бұрын

    Yes

  • @amitajadhav9200
    @amitajadhav92003 жыл бұрын

    Please make more videos like this for advanced questions...

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Amita👍👍

  • @nethisaicharan3037
    @nethisaicharan30373 жыл бұрын

    Thank you for the video! When do you resume the microservices? Since it was started last week!

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    This week Nethi👍👍

  • @nethisaicharan3037

    @nethisaicharan3037

    3 жыл бұрын

    @@CodeDecode Thank you so much

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    👍👍🙂🙂

  • @Thiru-zt5lw
    @Thiru-zt5lw2 жыл бұрын

    you are doing an excellent job and there is no words to say about your contribution. Really i appreciate you from my bottom of my heart. Great Work ..

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Thanks a lot 🙂

  • @Thiru-zt5lw

    @Thiru-zt5lw

    2 жыл бұрын

    There is one interview question how will you migrate from structs to spring? How will you migrate from ant to maven? There is 5 million request how will you make sure and what's your suggestion to do scalable and how will you increase your performance.

  • @shubhisharma3790
    @shubhisharma37902 жыл бұрын

    Can you please elaborate the function of Optional class with Example. Couldn't understand its functioning.

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Ok sure. We will create another video just on optional class

  • @gulfamhassan4635
    @gulfamhassan46352 жыл бұрын

    I ask this question regularly on interview but 80 % candidate fail to answer or not able to explain well. Q. Which method will execute if we call method by passing value null. Eg fx(null) public void fx(String s){ sop(1); } public void fx(Integer i){ sop(2); } If you think it print 1 then you are wrong.

  • @vitthalchandankar9128

    @vitthalchandankar9128

    Жыл бұрын

    public void fx(Integer i) : if argument is int here then o/p will be 1 but its Integer , hence compiler will throw ambiguity error.

  • @arushigupta105

    @arushigupta105

    Жыл бұрын

    answer would be compile time error because the compiler gets confused with which method is being called since both are accepting non primitive data types so null can be accepted by both the methods

  • @ushirranjan6713
    @ushirranjan67133 жыл бұрын

    Thank you so much mam for all your videos. It's really very helpful for the interview preparation. Could please creat some more videos on java hibernate and spring

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Ushir, we will continue this series👍👍

  • @abhayvarma5146
    @abhayvarma51463 жыл бұрын

    Please create more.. this is very good

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    sure we will create more soon.....

  • @khyatijoshi7809
    @khyatijoshi78092 жыл бұрын

    Really a help please continue with such video

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Sure Khyati. We will continue with this series 🙂🙂👍👍

  • @shivamsawhney4263

    @shivamsawhney4263

    2 жыл бұрын

    @@CodeDecode 98uyhk

  • @RajYadav-fy4lm
    @RajYadav-fy4lm3 жыл бұрын

    Mam please make more videos for Java 8, multithreading, Spring. I am following your videos for my interview prep. Thank you for such content

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Raj. If we get proper response we will keep on creating this series

  • @santhoshivempati9757

    @santhoshivempati9757

    3 жыл бұрын

    @@CodeDecode yes please upload more videos for Java ma'am. Very useful for interview. Thank you so much...

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Santhoshi, we will keep posting video in this series 👍👍

  • @madhuripandit1831
    @madhuripandit18313 жыл бұрын

    Thank you so much mam, you have helped me a lot during my preparation

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Thanks 🙏🙏this means a lot to us 👍👍

  • @sudheerkumar-tp1mg
    @sudheerkumar-tp1mg2 жыл бұрын

    Feedback is selected

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    🤓hehe thanks Sudheer. This is funny 😂

  • @abhinavmishra9690
    @abhinavmishra9690 Жыл бұрын

    Thanks for such informative content

  • @CodeDecode

    @CodeDecode

    Жыл бұрын

    🙃🙃👍👍

  • @krishnareddy-ro2rp
    @krishnareddy-ro2rp3 жыл бұрын

    Please do a video on serialization

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    sure we'll make one soon.....

  • @hemapriyaammu7365
    @hemapriyaammu73653 жыл бұрын

    In one of the interview they asked me to sort employee based on id and name? Can please tell how it was implemented in java8

  • @ANKITCHOUDHARYankitkrchy

    @ANKITCHOUDHARYankitkrchy

    3 жыл бұрын

    Check sorted Comparator.comparing method and thanComparing() methods

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Right Ankit 👍👍

  • @hemapriyaammu7365

    @hemapriyaammu7365

    3 жыл бұрын

    @@ANKITCHOUDHARYankitkrchy I want for 2 employee objects

  • @karthikeyanu2115
    @karthikeyanu21153 жыл бұрын

    Useful video. Can you just tell me how to clear cache in hibernate

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    session clear() method to clear the cache i.e delete all the objects from the cache. We can use session contains() method to check if an object is present in the hibernate cache or not, if the object is found in cache, it returns true or else it returns false.

  • @brvikas4426
    @brvikas44263 жыл бұрын

    Ma'am please upload JDBC and Sql interview questions.

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure 👍

  • @anilkumaryella3556
    @anilkumaryella35563 жыл бұрын

    Can you explain what is spliterator in Java

  • @usamaansari7903
    @usamaansari79033 жыл бұрын

    this interview question is for how much year of exp peoples ? cuz as a fresher don't knw this questions

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Right, not all questions are required for freshers, but we were constantly getting comments to increase the level. Hence we increased the level a bit in this video

  • @nandanhj7053
    @nandanhj70532 жыл бұрын

    Excellent

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Thanks

  • @csv2286
    @csv22863 жыл бұрын

    Need spring framework interview questions

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Yes, that's remaining, we will upload that too 👍👍

  • @csv2286

    @csv2286

    3 жыл бұрын

    @@CodeDecode Thanks for accepting my request

  • @chotasafasaana
    @chotasafasaana3 жыл бұрын

    Try answer little bit slowly ,its too fast to understand what exactly you are trying to say and it's confusing as well

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Ok, we will reduce the pace from next video 👍👍

  • @chotasafasaana

    @chotasafasaana

    3 жыл бұрын

    @@CodeDecode thanks...

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Thanks for observing and helping us in improving👍👍

  • @dhirajctx
    @dhirajctx Жыл бұрын

    Awesome video

  • @CodeDecode

    @CodeDecode

    Жыл бұрын

    Thanks Dhiraj 🙂🙂

  • @SinghRahul-
    @SinghRahul-3 жыл бұрын

    Plz come with micro service project.. Waiting

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Rahul, next is micro services only then 👍👍

  • @AshishSharma-mf4sg
    @AshishSharma-mf4sg3 жыл бұрын

    Amazing ✌️✌️✌️

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Thanks Ashish 👍

  • @nikhilsharma-kd4pi
    @nikhilsharma-kd4pi3 жыл бұрын

    Thank you so much for these important questions..... Looking forward to get more from you🤞👍

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure Nikhil 👍👍

  • @naveenreddy7320
    @naveenreddy73202 жыл бұрын

    You did a great job by posting the trending java interview questions. sorry to say this, please don't say NOTHING BUT in every sentence. it doesn't make any sense out there.

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    Thanks for pointing it our. We worked on it and now it's no more used in recent videos 🙂🙂👍👍

  • @vnvllucky3677
    @vnvllucky36773 жыл бұрын

    Mam real time project pleaseee

  • @CodeDecode

    @CodeDecode

    3 жыл бұрын

    Sure 👍

  • @bhushandhapodkar7577
    @bhushandhapodkar75772 жыл бұрын

    Please explain with code

  • @CodeDecode

    @CodeDecode

    2 жыл бұрын

    👍

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