Difference between Interface and Absract Class

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Java interview questions and answers on abstract class , Interface with examples.
Learn:
What is abstract class?
What is interface?
What is the use of abstract class and interface?
When to use Abstract class and when to use interface?
What is the difference between abstract class vs interface?
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Опубликовано:

2 мар 2018

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Комментарии : 142

@donamathew1749 4 года назад

I am trying to learn Java for the longest time. Never got the concepts clear. You have been a life saver for me. I don't feel the need for any other tutorial now. The way you teach is the most perfect I have seen. Thanks a Ton!!! Please continue this great work....

@hareeshjp 3 года назад

same with me.

@jabariterrence4539 2 года назад

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@oludamilareolukotun1783 4 года назад

I have never see any any explanation as clear and co concise as this. you are a great teacher

@truthlover3522 5 лет назад

Even many Java experienced guys find it difficult to explain difference between interface and abstract class, they just keep on reiterating interface and java but miss the clean explanation, but the way you explain with such a clarity , WOW., first time ever seen such convincing explaination.

@sureshm2047 4 года назад

I have been watching since 3 yrs about abstract and interface but no one has given clear cut and didn't understand but first time my doubts gone by watching this extraordinary video

@spsingh4297 6 лет назад

Excellent explanation for guy like me who is a beginner, Plus Naveen's accent is very Neutral and not like other people videos who says yeight to 8. Wish you billion subscribers

@sanghamitrabhowmicklive3013 3 года назад

I don't even know how to thank you. The way you explain concepts, I don't think I have ever seen someone like you. Hats off to you!!

@naveenautomationlabs 3 года назад

Thanks for watching :)

@venkateshandea1767 6 лет назад

Hey naveen ...i really appreciate your work...one requenst from my side make a video on ....where we use all these concepts in selenium....i.e abstraction, polymorphism, overriding, overloading, encapsulation ...etc...thanks

@deeepzzz 2 года назад

It's the same. You just need to learn java and oops concepts and you can work in selenium (or even in any oop programming language once you learned it well). (I know it's late answer, but may be useful for others)

@maheshappala3150 6 лет назад

The way of teaching is excellent naveen .i am new to java but i am understanding quickly and i am also watching your selenium videos.Your voice is very clean without any disturbance.thanks naveen for uploading videos

@sathiyaasothana9905 3 года назад

You are doing great man really don't stop this many of them are getting their career with your help...Their is no words to explain and thanks for all you efforts

@vikrampatil1340 5 лет назад

Very nice video with clean and clear explanation. At first I thought it is very long but after watching it completely, I understood that 30 mins are actually required in clarifying the concept. Thanks Naveen. I really like your videos and I am going to recommend it to my friends as well :) Keep up the great work. Love from NZ

@apoorvabhavsar1645 5 лет назад

Awesome videos, I have learned it around 8-9 years ago as a theory but this video made the idea crystal clear. Just love your teaching abilities. Keep it up and huge thanks for all your videos.

@naveenautomationlabs 5 лет назад

Thanks for watching

@oshadigodage29 3 года назад

Best explanation so far about the abstract class and interface, Thank you Sir

@sundramyadav5934 5 месяцев назад

Difference between abstract class and interface, when to use them, and how to define abstract class and abstract method. ✦ The main difference between abstract class and interface is that abstract class can have both concrete and abstract methods, whereas interface can only have abstract methods. 00:05 ✦ Abstract classes allow the creation of multiple abstract methods as well as non-abstract methods. 02:41 ✦ Method overriding and abstraction concept 07:47 ✦ Abstraction is a way to hide implementation logic 10:13 ✦ Interface allows defining only abstract methods. 15:50 ✦ Implementing 100% abstraction in Java 18:32 ✦ Accessing overridden methods and non-overridden methods in BMW class 23:24 ✦ BMW does not allow parent reference variable to access specific methods 25:57 ✦ The basic difference between abstraction and interface 30:05

@ankitkhusabu 6 лет назад

One of the best vedio on interface and abstract ever watched

@kaushikyadav5284 5 лет назад

Now i can not forget difference between this 2 topics thanks Naveen

@faizanhussain1879 5 лет назад

Great .... I take the java concept to fulfill my PHP work ..Thanks for the explanation sir

@Sandeep11067 3 года назад

You made build interest in Coding stuff, Otherwise i didnt have much interest towards Programming, Now i am Loving this. Thanks.

@devimedisetti9317 5 лет назад

Clean and understandable explanation, thank you Naveen

@deepakrai5175 3 года назад

most simple and clear video of Abstact classes and interfaces. Thanks !!

@naveenautomationlabs 3 года назад

Glad you liked it

@papridutta2336 Год назад

Thank you Naveen for explaining so well the concepts of Interface and Abstract class.You are gem

@khushbooraikwar8210 3 года назад

One of the best video, Thankyou Naveen!

@manishpatidar5379 5 лет назад

perfect explanation as usual.. Thanks

@sandhiya7781 4 года назад

Great explanation ...reallly osam

@mariabajwa8632 5 лет назад

thankyou , its amazing ,all concepts are crystal clear.

@RajuSingh-lt8cd 5 лет назад

I dint know anything about java yesterday.Now ,it seems I know almost everything with concept in one day. Excellent Naveen sir.Benefit ratio is 100% in one day. Best tutorial found on 1st day of my java learning. Thanks.

@naveenautomationlabs 5 лет назад

Thanks for watching. Keep learning

@harishpandey3267 6 лет назад

Superb Explanation.....thanks a lot Naveen

@karthikmurale 6 лет назад

Thanks Naveen .. i am searching for this topic in your videos

@sadi8249 5 лет назад

Thanks man! Your help is great!

@sakshiranu 2 года назад

Excellent teaching, Be my Mentor Naveen🙏

@grvlal 5 лет назад

Thank you Naveen for sharing the knowledgeable video.

@manimaranvaradharajan4073 3 года назад

Its Very Cleared about Interface and Abstract. Thanks Buddy.

@chandankorde3544 3 года назад

Thanks a lot Naveen sir ....clearly understood the concepts..pls make sure It will be available to us always... thank u so much sir..

@venthangowthamsivakumar5510 3 года назад

Awesome explanation Naveen

@bhagyashreeulhe3232 6 лет назад

Thanks sir..very informative video ...this question was asked in interview

@mohammeduneab8991 6 лет назад

Awesome your videos are helping alot..your way of explanation is really nice and gives a clear understanding

@lokeshbisht438 3 года назад

Perfect way to understand abstraction and interface. Really enjoying your videos.

@ComputerTechnologiesLab 6 лет назад

Superb Explanation..👍

@pradyumnnasatapathy8199 6 лет назад

Thanks a lot Naveen sir for this detailed information

@neelimacse2012 5 лет назад

thanks for the video..its very useful to know the diff btn both....

@wolfgangbenfattoum8137 5 лет назад

excellent video. most demonstrations regards interfaces lack precise explanations. I took me a long time to grasp as well. What needs to be shown is what happens at the dot operator when using either an interface as refernece type or the class as reference type. that way you can see what methods are available as soon you press the dot. cool stuff.

@truthlover3522 5 лет назад

Great Navin, i like your videos , awesomely explained

@bedaradurugaiah494 7 месяцев назад

Excellent concept was explained by Naveen super

@elinamdoraashley882 3 года назад

Good! was really struggling with the difference btn Abstract class and Interface....Thanks soo much for this video

@madhum3307 5 лет назад

Thank you so much for efforts Sir..!!

@sindhusudhakaran1731 3 года назад

Thank you Naveen. This is so helpful !!

@yashovardhangoyal9270 4 года назад

Thanks Naveen!!! Very Well explained

@MrAmarSindol 6 лет назад

Excellent bro, thanks

@amanueltesfu6071 2 года назад

Excellent explanation. Thanks Naveen!

@achaljain15 4 года назад

Thanks, Naveen for such amazing videos which are clearing almost all my doubts, As soon as the question pops in my mind, You explain it the very next minute in the video. Great teaching skills. I hope, I recall all of it well in my interviews! :)

@kalyanimeshram7669 Год назад

Just awesome 👌 👏

@user-kz7sf5dz5v 2 года назад

I am new to learn Java. I was so much confused understanding difference between interface and abstract class thanks Naveen you cleared my confusion. Really appreciate your honesty in sharing knowledge. By the I new to your channel as well. I need help with Array if can help me or share the link if already have a video on.

@abdelrahmanm.6215 4 года назад

amazing vid keep it up,thank you so much

@mitthuanjali1823 2 года назад

Superb informative 👌

@akshaysingh5179 3 года назад

Very nicely explained.Thanks for this video.

@sureshsubramaniyan3201 5 лет назад

Simply superb

@nehaverma-dp5mm 3 года назад

Superb content!

@lisazhou7776 4 года назад

very simple and cleat to explained the concepts. thanks.

@santhoshsomaiah 6 лет назад

Very good explanation

@vinoddhale2428 2 года назад

Thanks sir for clearing my concepts..😊😊🙏

@vinaysharma530 3 года назад

Sir you have much depth knowledge about concept 💯👌👌🙏

@maronnambo7918 4 года назад

That was very helpful. Thanks.

@Driverforcash Год назад

Very nice video Naveen Sir !

@myamazingvideos 5 лет назад

Hi Naveen, I am going through your courses and finding them to be very carefully woven for better and thorough understanding of the viewer. Hats off for that. Having said that, could you please answer a doubt I have ? Can a non-abstract class have an abstract method as well ? Thanks in advance :-)

@hemlatamehra7409 5 лет назад

excellent video naveen...could you please provide soft copy for all java interview Qu and ans.

@vatsalraj2655 2 года назад

Very nice and clear explanation

@kiruthikaduraisamy7126 2 года назад

Good Explanation

@reemalghamdi9974 4 года назад

THANK YOU SO MUCHHH

@rajeshdhonde9256 2 года назад

Very nice Teaching

@rahuljain3547 2 года назад

Very good explain 👍

@indrajitbhattacharjee8204 6 лет назад

nice explanation just a suggestion can add an example from selenium perspective

@DebunkSensibly 2 года назад

Thank you!

@Bala786A 2 года назад

Thank you..... 👍

@sacsp1 3 года назад

Thanks Naveen for explaining it in easy way. I have one question here, can we create object of abstract class using anonymous class for overriding abstract methods of abstract class then using same object to call other non abstract methods.

@agitay272 3 года назад

Great explanation brother

@s_vasudev 2 года назад

Thank you brother 🙂🙂

@krishnak8524 4 года назад

superb

@harshpatil1235 4 года назад

Thank you sir really clean and clear explanation. Please can you upload one video on java 8 when to use abstract c and interface bcoz in interface they added static and default method

@abhilashmt6161 6 лет назад

what about the static and default methods in the interfaces, which are non abstract methods right?

@abhilashadeshpande7996 Год назад

Thank you naveen.. your videos are always life saver for me.. I have a question, can u pls tell me which is the abstract class in the selenium library.. ?? In every interview i am getting this question..

@RaviKumar-lc3bf 4 года назад

Hai naveen .. I like your classes very much. In the interview for QA they are asking how interface and abstract use in selenium. This type of questions are little hard to reply. can you please tell us OOps concepts and also where OOPs will use in selenium

@mohammedzakaria8783 3 года назад

Thank you for such amazing work, Naveen, can u pls dicuss the difference after java 8, I heard there is a big change. Thanks in advance

@aayushpatel3360 3 года назад

classy Naveen

@nareshr6733 6 лет назад

Good explanation. Could you please explain the variables access also

@erikibarra4530 5 лет назад

Great

@sureshm2047 6 лет назад

Really Naveen tutorial the great stuff tutorial... thanks a lot Naveen

@RajuSingh-lt8cd 5 лет назад

Excellent Naveen..Hi,Can u pls provide videos on (Cucumber+Protractor+Typescript+Visual Studio Code).It will be helpful. Thanks.

@sarahju4524 4 года назад

You dropped this king *picks up a crown*

@doodsmix4015 3 года назад

best tutorial so far

@naveenautomationlabs 3 года назад

Glad that it helped you..

@webster. 2 года назад

Java 8 default methods in interface is a killer

@ashoktheja3346 6 лет назад

Sir can multiple inheritance done for abstract class ?

@traghavendra9828 6 лет назад

Hi Naveen, Can u provide me where we use interface and abstract class in any project with example

@RajuDas-zn3gx 5 лет назад

Can parameter be given in the parent class for both abstract class and interface?

@AlanVargheseAniyan 2 года назад

Does an interface achieve complete abstraction even after Java 8 where default methods are introduced?

@hemasahoo4908 5 лет назад

sir please make a video for encapsulation

@A_philodendron 4 года назад

Hi navin, Can you please make vedios on c#? Or suggest any vedios which has good explanation like your vedios?

@Abhishekyadav-xd2ib 3 года назад

We can say concrete method too to non abstract method ?

@vidulabhat 4 года назад

Thanks Naveen. Amazing clarity I got. Just have one query.. if all the methods in an abstract class are abstract, does it perform better than interface? If yes, what is the use of interface...as abstract class is achieving the same thing with better performance. Does interface do anything, which abstract class cannot do?

@aniruddhvale 4 года назад

i think a class can implement multiple interfaces but it cannot extend more than one abstract class. It cannot do multiple inheritance with Abstract class. So this might be the difference.