Abstract Classes and Methods – Learn Abstraction in Java
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Learn how to make abstract classes and methods and the difference between abstract classes and interfaces!
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Abstract classes are a list of variables and methods that help you make other classes. Abstract methods don’t have code in them.
Abstract classes in java can be tricky at first… But SURELY you’ll get it 🙂 If you followed along, congrats! You learned abstraction by-doing!
I hope you enjoyed this abstract class java tutorial! I like to have a nice mix of java tutorials and actual projects for you all 🙂
Was this able to help you learn how to use abstract classes and abstract methods in java? –
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Alex Lee
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You have helped me very much
Thank you.. Finally know a bit more about implement, extends, abstract….
Actually you can define a function in interface with default keyword. You can see that at7:00 in the first suggestion.
nice explanation, GJ
maybe you should mention in the title of the video the interfaces also
so interface is so that each class can have a unique way of having the method, and abstract class is for making sure that a specific method can be given to each class that needs it while also being able to define specific methods that are unique to that specific class right?
where would we be…
without Alex Lee.
tom, 2020
(thanks for the video, MASSIVELY appreciate it)
Extremely helpful explanations. Thank you for taking the time to share.
Great video 👍
Thanks. Lots of love from Texas.
Finally Someone teaching Java other than a Indian dude. Finally!!!
This is very helpful. Thank you
Awesome video 💯🔥… please kill the BG music though, makes it a little tough to hear.
Very good video!
First time learning this but got it quick. Thank you!
Nice work brother. Other people made stupid tables and listed the differences. You explained all in 9 minutes. Respect
return "exquisite."
Why use interfaces at all if abstract classes can do everything interfaces can do plus more?
I have been a full stack developer for a year. I love watching these interviews as I prep for interviews in the future. Love it
That was exactly the explanation I needed, thanks a lot!
So as class is template for object, so abstract class is a template for other class.
If you can have both abstract and unimplemented methods in an abstract class, what would you use an interface for?
This man is a fantastic programmer and instructor. He helps by breaking down complex terms and concepts, making them so easy to understand. Definitely worth subscribing, I look forward to more of your videos!
hey Alex,
in this case would an abstract class be kind of like a Header file in C?
where you declare all methods you plan on using but you implement them in your actual C files?
You should literally be teaching programing courses for universities. You explain everything so well!
Can an abstract class have a constructor?
Hi Alex:) Thanks for the tutorials they are so helpful, is it possible pls to see real example when to use implements and when to use extends in real life applications just to understand the real difference.cheers
Broskiii this was the best 9 minutes of my life, I love you thank you so much. LIFE SAVER
You're the only person that made abstraction not sound complicated. Here's a thumbs up and a subscriber. thank youuuuu!!!!!!!
Its content creators like this that put on display just how much of a blatant scam college is. Great job
After a year of struggling to understand abstracts and interfaces,I just learned them right now in just 8 minutes.
It was really really helpful,you explained it so simply and so good,thanks
Please make a video on Lambda Functions. Thank you
God you really simplified Abstract classes. I also watched your video on Interfaces and you saved me from stress of reading documentations
I learn abstract class. I think it is a difficult concept. thank you for your tutorial!
wow legend, i was about to google the differences of abstract & interface and then you go on to talk about it. great tutorial, thanks!
Great tut Alex! You just missed a small point. A regular class can implement multiple interfaces but can only extend one class. 🙂 keep up the good videos!!
you got a new subs man, good job.
super easy to understand!! thanks for this video
thank you
why we can press like button only for once!
Hey! Im new to Java..can anyone tell me why didnt we coded abstracted poop the same way we coded for bark?
..Before the extension..what m i missing here?
We – Java learners are so lucky to have you
good job bro
Hello alex thanks for this tutorial but i have a question. In minute 1:42 you state Dog d=new Dog() and then you call a.bark I don't get this it should be d.bark you never created a Object.
you did "poop" to make us understand this concept…you are awsome 😛
Hi man I just discovered your channel and subscribed after watching just 1 video, the way you explain everything is amazing.
One question, please answer it will mean a lot.
Although I understand all these concepts, how the hell do I remember so many things and hundreds of methods in hundreds of libraries and keywords and exemptions..?
Thank you thank you thaaaank you
Thank you so much for letting us understand the abstraction!
Thank you so much for letting us understood the abstraction!
Great Video. Thank You.