When to use Interface and when Abstract class?

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My best wishes are with you.

[ankitbirgade]

After watching this video my confused on interfaces and abstraction got cleared.amezing work Mr. Happy

[ramrajsinhparmar]

You are doing an excellent job by putting your time and efforts to teach us these concept in very simple manner in each and every videos. Hats of to you. Thank you for providing such a valuable knowledge.

[the_infinity_snake]

You forgot to mention that a class/interface can inherit multiple interfaces while a class can't inherit multiple classes.

[sonalilohar]

Thank You Sir.
Your all videos are superb. I'm a little confused about C#8.0+ version, when should I use the Interface and Abstract class?

[gamingzonerebel]

Thanks after long time i understood what is the use of both 😮

[randomGuy]

Thank you happy for making this series, it is really helpful. By the way, Happy is your real name?

[qushiexpressionqueen]

Ur all videos are superb.ur explanation with example is very simple & easy to learn.i really thanks to u sir.one request to u plz make a video subject regarding SOLID principles with real examples.thanks a lot sir in advance😊

[veerappanv-qisb]

but the interface should not have acess modifiers right ?
but u have used inside the interface class menthods

[poojasoni]

Interface member doenst have access modifers, you have added public in interface methods that’s is wrong

[isademir]

Should we define properties in Abstract classes or should we only use them in operational operations?
In this video, the Role() method in the Abstract class is defined as 'software engineer' but there may be more than one role in the company. Why did you define it this way?
I am asking to understand and learn, thank you.

[RishabhSharma-eu]

what about default methods and static method they can also serve same purpose as your abstract class concerete method?

[rajeshkale]

Hi I have one doubt you have write role method in abstract class we can rewrite that method again in derived class then what is the meaning of role method

[mdmaksudalam]

how did you maintain the file and data in selenium with c#. interviewer asked

[SurendraKumar-sgfy]

Sir it's not about interview question i have a doubt am having dot net experience approx 6 years am able to convert as a full stack if i concentrate an year, but confusing about .net future or need to shift Hadoop n data science please help in this confusion

[sukeshinisawant]

but we can achieve concrete behaviour with the help of normal class also then why we use and different kind of implimentation can be achieved by using interface then why we use abstract class or why we use interfcae if same thing is provided by abstract class also? it is really confusing and interviewer confuses easily in this, can you please tell me the exact reason

[raunakpaliwal]

Hi sir, Can you please make a video on generic in c#?

[praveenyadav]

Sir Still I am confused because concrete method also define in interface as well (default method and static metho) then how to decide when we go for interface/ abstract class?
I agree before 8 java feature but know ervery thing we can do interface as well like abstract class(except constructor).
Sir please give your valuable time and clear my doubts 😔

[katurimahesh]

Nice explanation. I bought your udemy interview course

[monikaasawa]

Sir, can abstract class inherit an interface?

[nothing]

I have a question
What The cat class
Abstract or interface or concrete
Which one is correct?
And thank you for explaining this to us it's confusing thank you very much really🤍