Functional Interfaces in Java 8

Labmdas in Java 8 are possible only because of functional interfaces. These interfaces are simple Single Abstract Methods which become the target type for the Lambdas.

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Master difficult programming concepts in few minutes. I try to explain difficult concepts like Java concurrency in simple to understand manner using animations and small code snippets. Explore videos on topics like Spring Boot, Cloud Foundry, Java 8 (with more coming soon). I am happy to clarify your doubts. Ask me anything in the comments. I am also happy to take requests for new videos.

New video added every Sunday.

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[boosan_m]

You start all your content straight from 0:01, no chatter, no use less intro, no drama. Love it. You are the BEST!

[Learning-Lane-Knowledge]

Nowhere I found such a nice explanation of lambda functions. Thank you for your efforts .

[shubhamchaudhary]

this is how anyone should explain functional interface and lambda. You won't believe I'm confused since day 1. Now all is clear.

[itsmyopinion]

You are the best in explaining java concepts... Brilliant.. . Fabulous..

[mercelessmonk]

I read a lot of articles on the functional interfaces and then watched this video. This summarizes everything.

[FrankConnolly]

Best explanation of Functional Interfaces I've seen on here

[MakeItStik]

Another awesome video. Can you please continue making more videos even if they are not that frequent. If I have to learn any new concept, your channel is the first place I visit. Thank you so much for the contribution.

[pragun]

Just to add, at 4:30, infact the lambda expression [ ( u1, u2 ) - > u1.getId().compareTo( u2.getId() ) ] can be assigned to any functional interface that is of Type <T>, accepts two parameteres<t1, t2> in its method declaration and returns an integer.

[swanandwagle]

Now that is called exams of functional interfaces with practical usages.... I was searching in long videos on other channels for same but didn't know I will find it in such a short video.... thanks a lot.... keep doing good work

[cong]

It's very concise explanation of java lamda! Thanks a lot.

[sathishrajasekar]

Thanks a lot Deepak, The way you present & explain the concepts are really Amazing !!! My gratitude towards the knowledge that you have share across all the videos.

[sumitbabel]

I really don’t know how to thank you for such a great videos, so many things I am learning for you. Please do accept my thanks and kind gratitude 🙏🙏

[mrAshwin]

Excellent video.
An additional info - we use predicte<T> as a parameter in stream.filter(...) as well.
filter is something that we use quite often for operations on a Collection

[SanjayKumar-byoc]

Right kind of voice for the kind of subject..

[Ckbagchi]

Very clean and straightforward content.

[jaydeeppatel]

Awesome I came here for functional interfaces and learnt some basics about lambda also. you categorized the use of lambda also . Thanks

[MahmoudRedaM]

Very clear, direct to the point, with not much jargon, Thanks!

[bhujangbhagas]

Very nicely explained and that too to the point..thank you

[thirue]

Awesome, Straight to the content, Great explanation with examples.

[navneetsrivastava]

Please make a series on JVM memory model and how and where static, instance methods, objects, Strings are stored in Java 9 and above. Awesome content :)