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Java Interview Questions and Answers | Java Tutorial | Java Online Training | Edureka 

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14 окт 2024

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Комментарии : 296   
@edurekaIN
@edurekaIN 6 лет назад
Got a question on the topic? Please share it in the comment section below and our experts will answer it for you. For Java Training Curriculum, Visit our Website: bit.ly/32Ymvde Use Code "𝐘𝐎𝐔𝐓𝐔𝐁𝐄𝟐𝟎" to get Flat 20% off on this training.
@dominykaskisonas223
@dominykaskisonas223 3 года назад
4:15 What is the difference between JDK, JRE and JVM? 5:50 What is synchronization? 7:38 What are the differences between processes and threads? 13:36 What are Wrapper classes? 17:18 What purpose does the keywords final, finally and finalize fulfill? 21:20 What is the difference between StringBuffer and StringBuilder? 24:58 What are the differences between Heap and Stack memory? 39:03 What is the difference between Abstract classes and Interfaces? 53:14 What is the difference between method overloading and method overriding? 55:03 Can you ovveride a private or static method in Java? 55:43 What is multiple inheritance and does java support it? 59:03 What is a Servlet? 1:00:41 What is the difference between Get and Post methods? 1:04:45 What is the lifecycle of a servlet? 1:16:01 What is Spring?
@Srijan_04
@Srijan_04 4 года назад
So far, This is the best ever resource for understanding java which I have seen. This guy Ishant does magic and everything gets into the brain xD. Thanks a lot, Edureka and Ishant
@rohanbattula5233
@rohanbattula5233 4 года назад
This video is amazing, one of the best java videos ive seen on youtube.
@meghagupta6994
@meghagupta6994 5 лет назад
This session was too good and helpful... Thank you very much for this effort this really means a lot to us n i really enjoyed n learned things more clearly...
@edurekaIN
@edurekaIN 5 лет назад
Thank you for appreciating our efforts. We are glad the video was of great help to you. Do subscribe to our channel and stay connected with us. Cheers :)
@devandeva4374
@devandeva4374 3 года назад
thanks man im from c++ backgroud but got placed in bajaj finserv which only needs java after watching this video a day before interview
@edurekaIN
@edurekaIN 3 года назад
Glad to hear that!Truly feels good that our team is delivering and making your learning easier :) Keep learning with us .Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@VEMPARALATEJABEC
@VEMPARALATEJABEC 5 лет назад
So practical and cleanly explained this is what you need when you want to implant a concept in your mind.Haven’t found a better tutor so far in youtube
@edurekaIN
@edurekaIN 5 лет назад
Thanks for the compliment Vemparala! We are glad you feel that way. Do subscribe to the channel and hit the bell icon to never miss an update from us in the future. Cheers!
@danielplainview2360
@danielplainview2360 2 года назад
Excellent analysis. Very well articulated and easy to follow.
@edurekaIN
@edurekaIN 2 года назад
Thank you for you time in giving a feedback :) We are glad that you are learning from our videos! Stay connected with our channel :)
@vinithmahendran235
@vinithmahendran235 3 года назад
Excellent video... Java simplified😄👌🏻
@DonAngelo333
@DonAngelo333 3 года назад
God bless you for your video and explainations! I am studying 2 hours before the interview. It's going to be fun!
@edurekaIN
@edurekaIN 3 года назад
Thank you so much for the review ,we appreciate your efforts : ) We are glad that you have enjoyed your learning experience with us .Thank You for being a part of our Edureka team : ) Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@iti_pooja22
@iti_pooja22 4 года назад
A very useful Video to prepare for Java interview. Thank You for the Video!!!!
@mokshadanayak9182
@mokshadanayak9182 6 лет назад
Very informative video and nicely explained.Very well done.Thank you so much for sharing with us.
@edurekaIN
@edurekaIN 6 лет назад
Hey Mokshada, thank you for watching our video. Do subscribe, like and share to stay connected with us. Cheers :)
@LizardanNet
@LizardanNet 7 лет назад
Thanks for this. Java interview tomorrow.
@edurekaIN
@edurekaIN 7 лет назад
+Lizardan, thanks for checking out our tutorial. Hope your interview went well. :) Do subscribe to stay posted on our upcoming tutorials. Cheers!
@chat3min
@chat3min 6 лет назад
Best revision video for Java OOPS and other basic questions before your onsite interview. Thank you.
@edurekaIN
@edurekaIN 6 лет назад
Hey Somal, thank you for appreciating our work. Do subscribe an stay connected with us. Cheers :)
@VikasKumar-nb5hv
@VikasKumar-nb5hv 2 года назад
Thanku sir your video build a confidence and strong a basic concepts. Good explained.
@edurekaIN
@edurekaIN 2 года назад
Hey:) Thank you so much for your sweet words :) Really means a lot ! Glad to know that our content/courses is making you learn better :) Our team is striving hard to give the best content. Keep learning with us -Team Edureka :) Don't forget to like the video and share it with maximum people:) Do subscribe the channel:)
@vijayalakshmi6028
@vijayalakshmi6028 6 лет назад
I have a question about question 18. Why par.foo() is "I am foo in super"?. par is a reference object of "parent" class which is pointing to "child" class, right? then par.foo() should give : - I am foo in child ....
@edurekaIN
@edurekaIN 5 лет назад
Hey Vijaya, "It is still refering the parent class method because it is a static method and static methods can't be overridden." Hope this helps!
@mohamedmasoodkhan
@mohamedmasoodkhan 2 года назад
Very Informative. Thanks a lot :)
@edurekaIN
@edurekaIN 2 года назад
Glad it was helpful!
@ravindrasarode6752
@ravindrasarode6752 3 года назад
Wonderful video to solve my basic concepts here, thank you so much eureka is a good platform for learning.
@kamalgarg6313
@kamalgarg6313 6 лет назад
Thank you so much for amazing videos. Could you also please make videos on system design interview questions in Java like 1) Design a traffic control system 2) Design a elevator system 3) Design a parking lot system etc.
@ltmikepick
@ltmikepick 5 лет назад
Awesome! I subscribed because you helped me to understand and remember java concepts
@thatsdeep7058
@thatsdeep7058 Год назад
I am in love with this teacher/ Instructor !!!!!!!!!!!!!! 😍❤❤
@edurekaIN
@edurekaIN Год назад
Happy to hear that! Keep learning with us...
@sujanabandari35
@sujanabandari35 2 года назад
Thank you very much for sharing such an amazing interview questions to us.Very helpful those who are seriously trying for interviews.
@edurekaIN
@edurekaIN 2 года назад
Hi : ) We really are glad to hear this ! Truly feels good that our team is delivering and making your learning easier :) Keep learning with us .Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@mibo747
@mibo747 Год назад
Many thanms for amazing lesson and knowledge!!!
@edurekaIN
@edurekaIN Год назад
You're welcome 😊 Glad it was helpful!!!
@aniketjain6886
@aniketjain6886 2 года назад
Beautifully Explained sir !!!
@edurekaIN
@edurekaIN 2 года назад
Thanks and welcome
@amirkhan3633
@amirkhan3633 2 года назад
Very helpful...session was too good : )...Covers whole Java(Core+Adv).
@edurekaIN
@edurekaIN 2 года назад
We are very glad to hear that your a learning well with our contents :) continue to learn with us and don't forget to subscribe our channel so that you don't miss any updates !
@rakesh7105
@rakesh7105 7 лет назад
object of an abstract class can not be created even in run time. The constructor in abstract class is to initialize the fields.
@Sapvision01
@Sapvision01 2 года назад
One of the best explanation over this channel thanks for sharing your knowledge with us god bless you.....
@edurekaIN
@edurekaIN 2 года назад
You're welcome 😊 Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@leomonz
@leomonz 4 года назад
very nice video and easy organized and clear...
@preethij5931
@preethij5931 4 года назад
Can't describe in words how good this tutorial is.thank you so much for the effort
@rehanarazviya5036
@rehanarazviya5036 2 года назад
Informative video thank you edureka
@edurekaIN
@edurekaIN 2 года назад
We are very glad to hear that your a learning well with our contents :) continue to learn with us and don't forget to subscribe our channel so that you don't miss any updates !
@mahaboobvali7018
@mahaboobvali7018 2 года назад
Vedio is good. I think there is need for small change at 30:40 .You have mentioned about Heap in Stack and vice versa
@madanmohanpachouly6135
@madanmohanpachouly6135 2 года назад
Nice explanation. Thanks
@edurekaIN
@edurekaIN 2 года назад
Thank you for your review : ) We are glad that you found our videos /contents useful . We are also trying our best to further fulfill your requirements and enhance your expirence :) Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@bibekroy1318
@bibekroy1318 2 года назад
This was simply awesome.. looking forward to see more videos from you...
@edurekaIN
@edurekaIN 2 года назад
Thank you so much : ) We are glad to be a part of your learning journey. Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@NoThisIsntMyChannel
@NoThisIsntMyChannel Год назад
Great explanation sir, cheers from Brazil
@edurekaIN
@edurekaIN Год назад
Thank You 😊 Glad it was helpful!!
@bakchodhutiyapa8298
@bakchodhutiyapa8298 7 лет назад
i like this channel a lot !! regula viewr ! congrats keep it up!
@maranvetry3877
@maranvetry3877 4 года назад
Easy to understand the logic
@aishgk0912
@aishgk0912 4 года назад
Thank you so much, edureka! for uploading this video. This is so helpful for interview preparations. All the other videos breaking down the basic concepts of Java were also excellent.
@फूलेदस्तक
@फूलेदस्तक 3 года назад
I would like to give a lots of thanks
@MrSampathmca
@MrSampathmca 7 лет назад
very superb video.. i have enjoyed so much...
@vinithashetty5520
@vinithashetty5520 4 года назад
I understood a lot please do more videos thank you so much!!
@kanaparthysaiteja5589
@kanaparthysaiteja5589 3 года назад
WONDERFUL SIR TRULY ENJOYED AND LEARNED ALOT IN SIMPLE, CLARITY AND EFFECTIVE MANNER. THANKS
@subashchokkalingam6312
@subashchokkalingam6312 4 года назад
Really Great....!!!
@krishnaverma7744
@krishnaverma7744 7 лет назад
Thanks for sharing the the video, its really helpful. Many thanks....
@alittlecoding
@alittlecoding 5 лет назад
Thank you very much. Best video
@b.vishnuvardhan3704
@b.vishnuvardhan3704 2 года назад
Awesome explanation hoping more videos
@edurekaIN
@edurekaIN 2 года назад
Good To know our videos are helping you learn better :) Stay connected with us and keep learning ! Do subscribe the channel for more updates : )
@nisargadattamathe4999
@nisargadattamathe4999 2 года назад
Thank you so much for the detailed video.
@edurekaIN
@edurekaIN 2 года назад
Glad it was helpful!
@vidyabukitgar
@vidyabukitgar 5 лет назад
While explaining that Strings are not mutable, why the compiler didn't throw any error when you tried to concatenate it with str.concatenate("hi... ") ???
@edurekaIN
@edurekaIN 4 года назад
What we mean by immutable is that you cannot change specific terms in the string. For example, 'Hello' is the string. You cannot change the string to 'Wello' by any case as that is not allowed. Whereas concatenation is allowed because the original string plus some other string is taken. Hope that solves your query.
@vidyabukitgar
@vidyabukitgar 4 года назад
@@edurekaIN yes it did
@noothivinun8204
@noothivinun8204 4 года назад
Perfect video to recall and learn all the JAVA concepts
@tubepankajyou
@tubepankajyou 2 года назад
Awesome collection of questions. Thanks you very much.
@edurekaIN
@edurekaIN 2 года назад
Thank you so much : ) We are glad to be a part of your learning journey. Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@shaiksahil1039
@shaiksahil1039 3 года назад
can you give me a reply about the real time examples(technically related) of encapsulation, inheritance, polymorphism, and abstraction?...its being asked in interviews....can you please reply to this question
@mohammedsufi4649
@mohammedsufi4649 6 лет назад
Very Very useful video. Hats off to edureka. Please keep up your great work
@edurekaIN
@edurekaIN 6 лет назад
Hey Mohammed, thank you for watching our video and appreciating our efforts. Your words is our motivation. Cheers :)
@anuraggwl
@anuraggwl 7 лет назад
Very Informative .. Please have a separate video for Spring and Hibernate
@edurekaIN
@edurekaIN 7 лет назад
Hey Anurag, thanks for checking out our tutorial. Here's the link to our Spring interview questions tutorial: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-yNY8HLk1hNM.html We do not have an interview questions tutorial for Hibernate, but perhaps these videos will help you prepare: ru-vid.com/group/PL9ooVrP1hQOGddZSIsq4d0nhZDMZlPY1X. Hope this helps. Cheers!
@shiv12592
@shiv12592 6 лет назад
great work..edurekha.., plz upload vidios for android and mysql interview purpose.
@edurekaIN
@edurekaIN 6 лет назад
Hey Shiv, glad you loved the video. Do subscribe to never miss an update from us in the future. We will surely process your request as soon as possible. Cheers!
@sergiucodes
@sergiucodes 2 года назад
I gotta be honest I was distrusting at start for some reason (mostly because of the date created being 2017) but once this guy started talking, holly!!! Thanks so much for this tutorial, amazing!
@edurekaIN
@edurekaIN 2 года назад
Hey:) Thank you so much for your sweet words :) Really means a lot ! Glad to know that our content/courses is making you learn better :) Our team is striving hard to give the best content. Keep learning with us -Team Edureka :) Don't forget to like the video and share it with maximum people:) Do subscribe the channel:)
@ehsansasanian9653
@ehsansasanian9653 4 года назад
so far ... the best video of recapping important concepts in java, well done Thank You!
@abhidynmc
@abhidynmc 6 лет назад
Thank you for the valuable questions. I feel more confident!
@edurekaIN
@edurekaIN 6 лет назад
Hey Abhishek, we are glad to have helped you. Do subscribe and stay connected with us. Cheers :)
@anniek7259
@anniek7259 5 лет назад
Very interesting edureka blog.. I understood alot which i don't know.. Thank you team..
@edurekaIN
@edurekaIN 5 лет назад
Thanks for the compliment, Annie. We are glad that our video was of great help to you. Do subscribe to our channel and stay connected with us. Cheers!
@keshavkuruva2581
@keshavkuruva2581 5 лет назад
Flow of explanation is very clear tqqq for video ....
@abhrajitnandy
@abhrajitnandy 5 лет назад
In abstract class, how to call non abstract method from child class if abstract class doesn't allow us to create object?
@edurekaIN
@edurekaIN 5 лет назад
Hi Abhra, It's possible to have non abstract methods in abstract class. When you want to prevent instantiation of the superclass. Child classes can use or override the public and protected non-abstract methods defined in the abstract class.
@FurqanHussain8888
@FurqanHussain8888 Год назад
Sir your explaining way is Awesome.
@edurekaIN
@edurekaIN Год назад
Thank You 🥰
@ridhisharma6062
@ridhisharma6062 7 лет назад
thank you for this. I am working in mainframe but wish to switch in Java. what will I require to do that
@edurekaIN
@edurekaIN 7 лет назад
Hey Ridhi, thanks for checking out our tutorial! As a mainframe developer you would some idea about programming. You can learn Java if that's the career track you are interested in. You can check out our Java course that is designed to give you hands-on experience: www.edureka.co/java-j2ee-soa-training. You will also get to work on a project towards the end of the course. The pre-requisites to learn Java are prior programming experience and familiarity with basic concepts such as variables/scopes, flow-control, and functions. Prior exposure to object-oriented programming concepts is not required, but definitely beneficial. Hope this helps. Cheers
@bhaveshmurug1548
@bhaveshmurug1548 6 лет назад
Nice Video Edureka keep it up n thanks for easy way to help us .
@edurekaIN
@edurekaIN 6 лет назад
Thank you for watching our video. Do subscribe, like and share to stay connected with us. Cheers :)
@aathiranair704
@aathiranair704 3 года назад
such an informative session!! thank you so much Edureka :)
@anandsinghnaruka5175
@anandsinghnaruka5175 5 лет назад
Hey ishant ..u have very well explained ...thank you
@erickennedy2526
@erickennedy2526 Год назад
thx for the video !
@edurekaIN
@edurekaIN Год назад
You are welcome 😊 Glad it was helpful!
@hippiestafarii
@hippiestafarii 7 лет назад
Yes !!! Very nice video, thanks a lot :-)
@kevin26exe
@kevin26exe 3 года назад
Thank you so much for this video! Really helpful
@ShivaniSingh-jt6kl
@ShivaniSingh-jt6kl 3 года назад
Very good explanation
@shubhamsoni8093
@shubhamsoni8093 3 года назад
Thanks. This was the best way to learn before a viwa
@aashaykadu3390
@aashaykadu3390 2 года назад
Thank you edureka . I'm placed.
@edurekaIN
@edurekaIN 2 года назад
You're welcome 😊 Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@bhartirajpal5402
@bhartirajpal5402 5 лет назад
Very useful video. Every Concept is explained very clearly.
@decodingtimer
@decodingtimer 4 года назад
Great explanation
@divyap3295
@divyap3295 5 лет назад
Ishan ur awesome ..... really explained very well...TQ
@chandushetty6065
@chandushetty6065 7 лет назад
very use full. Thank you so much...........
@bharatranpariya5581
@bharatranpariya5581 6 лет назад
very nice, better then many of the articles. good job.
@edurekaIN
@edurekaIN 6 лет назад
Hey Bharat, thank you for watching our video. Do subscribe, like and share to stay connected with us. Cheers :)
@ditu-kunalsarda6863
@ditu-kunalsarda6863 4 года назад
Such beautiful concepts compiled together. Thankyou! The perfect revision
@Live_Love_Ride
@Live_Love_Ride 6 лет назад
Equals() method can be explained in better way. Both for Object class and string class :)
@edurekaIN
@edurekaIN 6 лет назад
Hey Aashutosh, thank you for the feedback! We will definitely work on this. Hoping to see you on our channel learning with us. Cheers :)
@georgevisan973
@georgevisan973 4 года назад
Great job! Thanks!
@kajalkoravi4092
@kajalkoravi4092 7 лет назад
very useful and informative video ,i got to learn much more while preparing for questions ,thank you for this video
@edurekaIN
@edurekaIN 7 лет назад
Hey Kajal! We are delighted to know that you liked our content. Subscribe, like and share to stay connected with us. Cheers :)
@vivekkumar-nw1qv
@vivekkumar-nw1qv 5 лет назад
Congratulations for 1M 💐💐💐
@sumitagarwal4591
@sumitagarwal4591 5 лет назад
Great work done here guys, Can you also please make a video/videos for common coding interview questions and how to go about them topicwise
@nanajijonnadula6290
@nanajijonnadula6290 5 лет назад
Very good effort. Very good material. the best trainer i have ever. He is the best.
@edurekaIN
@edurekaIN 5 лет назад
Thanks for the compliment! We are glad you loved the video. Do subscribe to the channel and hit the bell icon to never miss an update from us in the future. Cheers!
@mamtamishra7896
@mamtamishra7896 3 года назад
This video is really helpful.It help me to brush up my java knowledge and clears the concept of all its terms. Thanks a lot!!!
@mohitvalechay
@mohitvalechay 5 лет назад
Thanks for putting together these questions together..thank you
@johnjames6717
@johnjames6717 4 года назад
Hello. Thank you for this video. I learned a lot.
@prashanthinaughty
@prashanthinaughty 6 лет назад
It is really an awesome video...thanku sooo much
@edurekaIN
@edurekaIN 6 лет назад
Greetings! Thank you for watching our video. Do subscribe, like and share to stay connected with us. Cheers :)
@rosegirl0710
@rosegirl0710 2 года назад
Thank you so much 😇
@alsan8935
@alsan8935 4 года назад
Great great work by ishant..🙌🙌🙌. Good job guys. It’s big help for fresher and java community...Thanks
@verzinmaar1648
@verzinmaar1648 5 лет назад
Very clearly explained, you're a good teacher. Thanks!
@danillolf
@danillolf 2 года назад
Thank you so much for your content! Regards from Brazil!
@edurekaIN
@edurekaIN 2 года назад
Thank you so much : ) We are glad to be a part of your learning journey. Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@otherworks2085
@otherworks2085 7 лет назад
WOW its very helpful ! plz upload more or part TWO plz
@edurekaIN
@edurekaIN 7 лет назад
+Otherworks, thanks for checking out our tutorial. We're glad you liked it. Here's the link to our Java playlist: ru-vid.com/group/PL9ooVrP1hQOHb4bxoHauWVwNg4FweDItZ. Hope this helps. Cheers!
@JitendraKumar-lt8fl
@JitendraKumar-lt8fl 10 месяцев назад
Thank you very much
@edurekaIN
@edurekaIN 10 месяцев назад
You are welcome :)
@baloney_sandwich
@baloney_sandwich 3 года назад
dam good high quality video, must view for all java learners be it entry or advanced level
@edurekaIN
@edurekaIN 3 года назад
Hi : ) We really are glad to hear this ! Truly feels good that our team is delivering and making your learning easier :) Keep learning with us .Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@iamkaziADroidMan
@iamkaziADroidMan 2 года назад
This guy is legendary due to his dedication for it❤️ kudos!!!
@edurekaIN
@edurekaIN 2 года назад
We are very glad to hear that your a learning well with our contents :) continue to learn with us and don't forget to subscribe our channel so that you don't miss any updates !
@StudentTechnique
@StudentTechnique 3 года назад
thanks for this interview video.
@edurekaIN
@edurekaIN 3 года назад
Thank you so much : ) We are glad to be a part of your learning journey. Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )
@charchilgupta
@charchilgupta 7 лет назад
Very helpful ....Thanks a lot
@everyonecancode1613
@everyonecancode1613 5 лет назад
Awesome !
@sreerupakatamoni3087
@sreerupakatamoni3087 6 лет назад
Thank you for this vedio.this is really help full.can u plz share the slides sir
@krantishedage5641
@krantishedage5641 4 года назад
Nice session.... thank you so much 😊
@deepakmeher9913
@deepakmeher9913 7 лет назад
Nice ans helpfull.Thank
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