This videos is best explanation I found on youtube, it almost clears all the doubts that confused me again and again about the differences between interfaces and absract classes. Thank you very much sir and god bless you
Sir, As per the recent c# update, Beginning with C# 8.0, an interface may define default implementations for some or all of its members. So it would be now difficult to differentiate between abstract and interface...please review the update and highlight the differences...Thanks for the video, it was really detailed.
This still does not change the fact that in C# a class can implement multiple interfaces but inherit from only one abstract class. In a language like C++ that supports multiple inheritance of classes, there is no technical difference between an interface and a pure abstract class (and indeed, C++ has no notion of an interface). This is not the case with C# and Java though.
Thousand likes for making such an useful video. I have learnt a lot about the differences. Thanks. Please keep uploading great videos to assist us fellow devs to understand better. The docs and stackoverflow at times are complicated
Well explained. video helped in clearing the doubt of pure abstract. Your way of explaining the concept in simplest possible form and that too with demonstration that's like cherry on the cake. Can you please share what are important concept that needs to be learnt in entity framework.
simple yet a professional explanation, I am thinking of joining the courses in website but it is a little confusing since there are a lot of courses there ! I think it would be great if you consider making a (guide map) pdf or video that explain the target of all courses or study paths ?
Thanks. My question is: how to save all classes who implemented interfaces as xml file into one single file? Can you provide an example? And how to load that file after? I never found this on net.
I have one question. U said we cannot do multiple inheritance in C#, but we could do multilevel inheritance. We could have an EnquiryCustomer with name prop and Enquiry () and a Customer which inherits from EnquiryCustomer and has discount () then concrete classes can inherit from Customer class.
In this example, why not derive the Customer class from parent class CustomerEnquiry. Then Lead could be derived from parent CustomerEnquiry and PlatiniumCustomer could be derived from parent Customer. Does this not accomplish the same thing? Why is using interfaces better than this solution? (An honest question from someone trying to have a better understanding)
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Why haven't you inherited enquiry in customer class of abstract
Thanks!
Thank you for your support.
Very good lesson!! Finally I understand the difference between abstract classes and interfaces!! Thank you!!
Thanks. Do visit www.questpond.com/c-step-by-step-with-interview-questions---answers-series/cid62
This videos is best explanation I found on youtube, it almost clears all the doubts that confused me again and again about the differences between interfaces and absract classes.
Thank you very much sir and god bless you
This is the topic I couldn't understand for a long time. You just explained it so well, I got that immediately. Thank You very much!
the explaination is so clean and crisp!!!
such a nice explanation, I watched many but no one cleared the concepts to this level. Thank you sir.
Best explanation of the subject I’ve heard.
Thanks so much. You explanations are always thorough, clear and easily understood.
Complex topic explained very beautifully.Thank you
Well explained. Even from your hometown the hunger to spread knowledge does not go. If Teaching is your hobby, learning is ours. Both are hungry
Thanks sir for appreciation.
The best ever explation for this question❤
Thank you sir :)
Sir,
As per the recent c# update, Beginning with C# 8.0, an interface may define default implementations for some or all of its members. So it would be now difficult to differentiate between abstract and interface...please review the update and highlight the differences...Thanks for the video, it was really detailed.
This still does not change the fact that in C# a class can implement multiple interfaces but inherit from only one abstract class. In a language like C++ that supports multiple inheritance of classes, there is no technical difference between an interface and a pure abstract class (and indeed, C++ has no notion of an interface). This is not the case with C# and Java though.
@@moravec481 that is one thing, however, when it comes to implementation of methods, how can we differentiate between both?
Keep uploading ❤
May God bless you. Your session is very crystal clear narratiion.
Examples are fabulous . Thanks
U are so good in explaining. Thanks for sharing this information 🙂🙂
Crystal clear explanation.. thank you..
Thanks. Do visit www.questpond.com/c-step-by-step-with-interview-questions---answers-series/cid62
Thank you so much for the video. you are a good teacher. Started to watch your courses.
Best explanation I've ever seen.
It is very clear... Good explanation...
Well explained 👍
Many thanks for your Video. Very helpful
I do inquires all the time. Beautiful video regardless.
Thousand likes for making such an useful video. I have learnt a lot about the differences. Thanks. Please keep uploading great videos to assist us fellow devs to understand better. The docs and stackoverflow at times are complicated
He is a genius man
Thank you very much for this video.
You gain one more follower in me.
Cleared all doubt .thanks a tone Sir👍
Well explained. video helped in clearing the doubt of pure abstract. Your way of explaining the concept in simplest possible form and that too with demonstration that's like cherry on the cake. Can you please share what are important concept that needs to be learnt in entity framework.
Thank you , really Enjoyed it and understood the concept 😬
very very very well explained.
Well explained sir,thanks a lot ...gratitude
If you only need to know the overall difference: 5:10
Thanks.. great explanation.. seriously still everyone asks this question.. I don’t know whyy!!!
Super explanation, Congratulate friend.
Amazing and clear! Thank you so much 😍
Nice Explanation
loved the clarity and emphasis on your voice. It was indeed a very good explanation
great explanations man!!! great work. much appreciated. peace!
One of the key advantage of interfaces over abstract classes is how they are being used in loose coupling.
I can't thank you enough!
Very very nice video sir
Thank you so much sir
Nice job
thank you very much for the video it helped me a lot!
very good explanation thanks!
greate job, thank you
Very well explained sir.
Thanks. Do visit www.questpond.com/c-step-by-step-with-interview-questions---answers-series/cid62
awesome video! thanks a lot!
excellent...no more disc. abstract vs interface😆
Thanks!! great
simple yet a professional explanation, I am thinking of joining the courses in website but it is a little confusing since there are a lot of courses there ! I think it would be great if you consider making a (guide map) pdf or video that explain the target of all courses or study paths ?
Thanks. Do visit www.questpond.com/c-step-by-step-with-interview-questions---answers-series/cid62
When its .NET and C# only one king in India Shivprasad Koirala....This video takes you to different level of thinking.
There are many better c# devs than me , its just that i create videos on youtube , write books so people know me. :-)
@@questpondvideos this is called remaining down to earth.. Dev's are many but the way you express/explain can be done by very few
Thank you Sir.
thank you sir. where can i find interview questions about SOLID principles for freshers?
❤
Thank you so much Sir🙏
Thanks. Do visit www.questpond.com/c-step-by-step-with-interview-questions---answers-series/cid62
Thanks sir :)
Thank you sir 🙏 very well explained. Can you please make a video on oops concepts.. this is also a commonly asked interview question ..
Hello Archana, under membership you can find c# interview Q&A video on OOPs concepts too i.e. Part 4.
Thanks. My question is: how to save all classes who implemented interfaces as xml file into one single file? Can you provide an example? And how to load that file after? I never found this on net.
Sir After c# 8- 2019, Microsoft has introduced default method implementation in the Interfaces.
Why would I do planning in the code? I can plan the code prior to coding using UML for example, it doesn’t make since?
Documents like UML and word does not bring enforcement in the code like interfaces....We all know document is always out of synch with code.
@@questpondvideos you mean do not bring?
@@tko9753 🙂 yes
I have one question. U said we cannot do multiple inheritance in C#, but we could do multilevel inheritance.
We could have an EnquiryCustomer with name prop and Enquiry () and a Customer which inherits from EnquiryCustomer and has discount () then concrete classes can inherit from Customer class.
I too have this same question sir..
Why would you create 2 classes only to be inherited from concrete classes further down in the same hierarchy?
For 8 years of experience can u suggest wat are the questions should I focus on??
Interfaces are very useful on large projects where there are multiple programmers, so the code doesn’t turn into a dogs dinner?
Is this fair to say?
yes it is so true that it does become a Dog dinner. But i think in interview technical explanation would be needed.
In this example, why not derive the Customer class from parent class CustomerEnquiry. Then Lead could be derived from parent CustomerEnquiry and PlatiniumCustomer could be derived from parent Customer. Does this not accomplish the same thing? Why is using interfaces better than this solution? (An honest question from someone trying to have a better understanding)
Why haven't you inherited enquiry in customer class of abstract
Sir are you related to Manisha Koirala
i have membership. how can I download pdf for interview questions
Check first part of each series for PDF download link in the description.
@@questpondvideos Couldn't find any link to download .could you please help
@@steffymaryjose5828 Check Part1 of C#, ASP.NET MVC, Angular, SQL interview Q&A videos. Links are already given in the description.
Conclusion : interface can support multiple inheritance
What is the difference between ICustomer buyer_as_interface_type = new Customer() and Customer lead_from_class_type = new Customer() ?