#66 Need of Interface in Java

Рет қаралды 140,761

Күн бұрын

Пікірлер: 61

@leonardorafaelli8026 6 ай бұрын

What an awesome tutorial! You showed the problem and then showed how to solve it, simple and direct. Perfect, thank you very much!

@SP-vq7tg 5 ай бұрын

Simply Woow!! Its crisp and clear.. I spent 17k on Java course and ended up confused. Wish i had found you before...

@SATHWIK05 Жыл бұрын

Good explanation sir Understood everything....

@rsz90182 Ай бұрын

Thank you, that was well done and quite simple to understand. Most teachers make this into rocket science and scared me away. I am finally beginning to understand it.

@amanjain5045 3 ай бұрын

I really do not know how to thank you! The real life example you show, and the way you show it step by step. The reason I am now good at Programming is not because of my University, it is you!

@revanthff7403 24 күн бұрын

The explanation was awesome every student can learn easy seeing this channel videos

@andrewjenson_original 7 ай бұрын

Hi, I'm confused. It seemed like your video showed the value of an abstract class Computer. But, then, in the last 10 seconds of this video, you changed Computer from an abstract class to an Interface. But, I'm not sure what the value is for changing it to be an interface? It seems like the real value was gained by having Computer be an abstract class.

@srikardevarakonda2933 5 ай бұрын

Exactly.. same doubt.. this is a video on abstract class, not interface.

@baili8654 Ай бұрын

Very thank you, you made me very clear about this. God bless you!

@somnangvirakvonprince Жыл бұрын

I tried this and it works fine but there is a flaw. if the variable type is Computer then I cannot use the property and method of the children class as the compiler at the moment we compile the code only know the members of the Computer class. But it works if we just want to reuse the code function with different implementations. Great video by the way sir

@DeepakSingh-n2g 11 ай бұрын

What you tried now (And what's in the video), is called "Upcasting". Maybe you can explore more about "Upcasting" and "Downcasting" in Java.

@sarthakavaiya3360 Ай бұрын

great way of explaining interface

@harshitjain8820 Ай бұрын

Best explanation for this concept!!

@painisgain1003 2 ай бұрын

Thank you so much, I've been looking for a good explanation of interfaces :)

@HabiburRahman-dm5yt 5 ай бұрын

Your teaching is well. but here I have a question. You have showed loose coupling using inheritance, abstraction and interface. All are working well. But when can we choose the suitable one?

@Sanjay-xq5xr 4 ай бұрын

Awesome explanation with example.

@sher.5027 8 ай бұрын

Bhai, you are the best teacher who teaches with the best and simplest examples.

@abhishekkale8750 7 ай бұрын

what a great explanation. thank you Naveen sir

@i_dhiraj 4 ай бұрын

u are awesome sir u teaching very fine respect !

@rlifts Ай бұрын

Brilliant ! Subscribed.

@sridharmurari3007 Жыл бұрын

One question when we need to go for Abstract vs Interface

@2192_RAHULPATIL 4 ай бұрын

Whenever you want partial abstraction use abstract class and for full abstraction use interfaces

@MohdKhan02 7 ай бұрын

whats the basic difference between using interfaces and implemenths rather using abstract class with our regular inheritance extends keyowrd? can anyone plz explain me?

@arsh3250 3 ай бұрын

Well, the interface has a lot of specific features. Like here we are allowed to perform multiple inheritance i.e a class can implement more than one interfere, no the case when we are using abstract classes. Also, we need to keep in mind that abstract classes are not solely for designing, I mean we can have concrete methods in it as well right? But you know interfaces are purely for design purpose, the methods in it are by default abstract and public.

@JavaMoth Жыл бұрын

Yep, it's clearer now

@sastisfya2721 Жыл бұрын

Congratulations boys and girls for more than 60%completion !!!! Just a few more to goooo!! Les ghoooo💪

@TreatsNTravelsByJaaiPawar Жыл бұрын

Hi 5 .. just completed this video!

@merrylia8316 Жыл бұрын

🤗

@davidhusted817 8 ай бұрын

What about if we make a method code as abstract and use anonymous class , because the best practise to avoid instantiate classes further we need it because that make memory leak

@amsha3083 Жыл бұрын

Extremely Ambiguous

@AOCalive 2 күн бұрын

Fucking genius way to talk about coding when relating it in such a way of our reality, ty!

@ham3ltonion 4 ай бұрын

Too good sir

@kamakshijayaraman3747 3 ай бұрын

you just showed what an interface can do with abstract class. what is the difference? why we need interface

@vipassassin404 7 ай бұрын

When I try to keep a method which is not a public in the class which implemented from an interface,why it is showing error...

@aszaw5342 Жыл бұрын

Great explanation!

@majorgabREAL Жыл бұрын

What is the main difference between abstract and interaface? Besides the fact that interface is not a class, how to know when to use which ?

@madhusudhanreddychencharap4881 Жыл бұрын

In abstract class there is a chance to add concrete methods but on other hand interface is 100 % abstraction no concrete methods allowed

@ManojMehra-b7i Жыл бұрын

great bro

@linquanma6145 Жыл бұрын

Very nice example

@ALENBELJI Жыл бұрын

When we create a reference to the parent and object of child we can only access the methods of the parent but how did you code was able to acccess the methods of the child

@SATHWIK05 Жыл бұрын

Same doubt

@001vidhu 9 ай бұрын

Its the object of child class & its not upcasted. thats why .

@davidhusted817 8 ай бұрын

This is the downCasting

@thanveerpp1983 6 ай бұрын

@@davidhusted817how this is down casting This is upcasting ,because the object of child class has been assailed to parant class object variable

@ALIHAMZAAKRAM-oe2su Жыл бұрын

hy ,sir in the #65 video you should modify your example as the comapny can give a developer a laptop or desktop rather than a devolper need a laptop due the wrong example i have to see the videoo again to understand the concept