Part 3 Why and when should we use an abstract class

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This question can also be asked in a slightly different way
Give an example of where we could use an abstract class?

Let us understand when to use an abstract class with an example. An organisation has 2 types of employees
1. FullTimeEmployee
2. ContractEmployee

We would create an abstract class, when want to move the common functionality of 2 or more related classes into a base class and when, we don't want that base class to be instantiated.
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Venkat, you are a perfect tutor, thank you very much for these courses! When I surf the site to look for some special theme and find your videos, I prefer to see them at first.

irinamurmur
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5 years later, this is still the best video there is for a thorough explanation of abstract classes and their need. Venkat you will forever remain the C# God!

parijatsaxena
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I can't thank you enough!
You are THE BEST teacher I've ever faced.
This C# lectures, you are giving, help me so much in my work. 
Send you my endless admiration.

swimtlvmitnovizki
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The best among all others even its made 9 years ago.. for those who haven't coded a lot this is a very easy to understand version! one more sub for u. I am learning Java and when it comes to that part 16:00 "why we add 'abstract' because 'BaseEmployee' doesn't exist", I suddenly got enlightened!!!! very very good tutor! logic is so clear and example's very coherent

hongcai
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This is the GOAT of all the tutorials on abstract classes! Thank you!

hisdness
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Finally! Finally someone gave me explanation that makes sense!

missndshah
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Eternally grateful to have found this video! Your explanations are clear, concise, and very well executed. Kudos!

assiameade
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After 7 Years, this is still the best video there is for a thorough explanation of abstract classes and their need.

Test-rsqy
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Eleven years and you are still helping!!!
long live

akarsh
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9 years later and this video is still relevant, amazing.

imraneyubov
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This isn't just help for an interview. This is basic stuff that should've been more clear on my training. That was tremendously helpful.

joeMsessions
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I recommend everyone to learn c # with you.
I did not know this language at all, and now I'm going to take a resume at a company. Thanks to the knowledge I have gained from your videos!
For half a year I learned from you.

MoviesVisionRecapOfficial
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I would say this is the best explanation of Abstract I've ever watched! I am so happy that I found your channel. I'm pretty sure that who watches your videos they'll subscribe at your channel not waiting the end of play.

cyberwomen
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Man! God bless you! Crystal Clear Understanding! Not everyone can be a good teacher. Knowing to teach is a skill hard to earn! Good job!

gmarifislam
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Venkat, 15:05 goosebumps feeling when you actually explained everything why we wanted to use abstract class.

basavanagoudahosamani
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I think dislikers are only haters, when cant compete then only bark from distance.

Sir venkat i am thankful from depths of my heart. Learnt a lot from you and now i am good paid software engineer.

umerwaqas
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I got stuck in why we using abstract class in c# for a long days.but after watching this tutorial i have caught the real idea of abstract class.really its an amazing tutorial.Thank you very much

muthukumar
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Man this is the best explanation I could ever find on youtube, thanx alot :)

waseemmehmood
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I watched an hour video on this subject and it left me even more confused but this guy helped me get it in 10 minutes. Great job.

aerofred
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Thank you very much. I have been trying for days to understand why and when you would use an abstract class and you were so clear and concise that I got it immediately. The best tutorial I have ever seen on this subject!

clandestine