Java 8 Interview Questions And Answers | Consumer || BiConsumer || Supplier || Chaining (Live Demo)

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Consumer : It will consume Item. Consumers never return anything (never supply), they just consume.
Consumer Chaining :
We can combine / chain multiple consumers together with andThen .
There is only one ways to combine consumers:
c1.andThen(c2).apply(Input); - first c1 then c2
No compose() in consumer.
Multiple consumers can be chained together like :
c1.andThen(c2).andThen(c3).andThen(c4).apply(Inputs);
Supplier :
It will just supply required objects and will not take any input
Its always going to supply never consume / take any input.
EG : always supply me current date.
No chaining as no input is given to this. Only it gives u output.
Advantages:
Write once, use anywhere.
Code Reusability
BiCinsumer Bisupplier :
What if we need 2 arguments for operation?
Then we need Bi XYZ Functional Interfaces.
There is no input in supplier so no 1 or 2 Input arguments needed. Hence no BiSupplier.
Q) If we want to operate on 3 arguments then triPredicate?
There are no TriPredicate or TriFunction etc.
No QuadPredicate No QuadFunction.
Java 8 has inbuilt Functional interfaces that can take only 1 or 2 arguments no more.
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[@RadhaBalloo]

After watching your videos, I thoroughly understand what Functional Programming is. Great Content and well explained.

[@CodeDecode]

M glad 😊. Thanks for writing back to us Nilakshi 👍

[@shokoofehhoseini1068]

Consumer chaining has accept method not apply method. your videos are great. it really helps me in interviews! thanks Madam :)

[@letscodewithshivam]

small correction at 3:43 - consumer should be using accept method and not apply. Thanks for this java playlist mam :)

[@rangarajugottumukkala9380]

Madam, you are showing us the in depth details. You are awesome and helping all learners. Thanks to you

[@CodeDecode]

Thanks 🙂🙂👍👍

[@savitarohra3905]

What a real in depth knowledge u have!!! Wow! The way u explain these concepts is really amazing. You explain these confusing topics in very simple way. I was having hard time understanding these APIs using java docs. Thank you for making it easier to understand.

[@CodeDecode]

Thanks Savita 👍🙂

[@osamaazharazhar5167]

0:20 What Is Consumer Functional Interface? 7:32 what is Supplier Functional Interface?

[@CodeDecode]

Thanks 🙂👍

[@kasunwithanage1081]

Awesome. How simple these are. Anyone can understand theory and implementations from this Q & A. Love from SL

[@CodeDecode]

Thanks a lot Kasun 🙂🙂

[@sahilbhasin2112]

thanks i have gone through all this playlist.

[@CodeDecode]

👍👍

[@akshayjain3197]

Very nice and informative sessions.Thanks for sharing your knowledge.

[@CodeDecode]

You are Welcome....

[@vishalchandel8864]

very good knowledge you have .thank you for making these videos

[@CodeDecode]

Thanks for the appreciation vishal

[@ravindrasiddavatam1097]

Very good explanation👌

[@CodeDecode]

Thanks

[@bhuwantripathi2707]

I am watching your videos for Java 8 interview and I am not able to stop myself from this playlist and surely I will cover complete playlist in few hours... Nicely explain Can you please also share the document on Google drive?

[@CodeDecode]

Thanks Bhuwan. Everything that's in ppt is in description below. Slides do have content that can give us copyright issues, that's why we can't share the slides. Sorry for inconvenience Bhuwan. Is there any other way we can help you?

[@manishamulchandani1500]

Awesome channel with awesome Explanation .

[@CodeDecode]

Thanks

[@aruhiayaanreddy8613]

small correction in document for consumer chaining you added c1.andThen(c2).apply(input)...here its not apply it should be accept method.😊

[@bhavinjani9338]

Thank you so much for your great efforts.... Ur lactur series are excellent...... Keep it up....👏👏👏👏👏

[@CodeDecode]

Thanks 👍😊

[@Deepakkhabale]

Thank you for making all the useful content

[@CodeDecode]

You're welcome Deepak

[@josnadsouza6351]

Please add streams and parallel streams tutorial..All the java 8 features u have covered well it was very much helpful in understanding these concepts...thank u..

[@CodeDecode]

Will upload them very soon 👍👍

[@ravindrasiddavatam1097]

yeah, that will be great.

[@sajalmathur549]

Thanks for sharing your knowledge and providing us excellent content. Please upload last remaining topic stream and also biconsumer example in that part. Waiting for it... Try to upload it in 1-2 days as currently i am in flow of learning.

[@CodeDecode]

Sure will try to upload twice. 👍

[@siddharthshinde8869]

Awesome content really helpful. Takes lot of dedication and passion to upload such videos.

[@CodeDecode]

Thanks Siddharth 👍👍. All the hard work pays off with such comments. Thanks 🙏🙏

[@maiankithun]

bahut badhiya...

[@CodeDecode]

🙂🙂👍👍

[@sahilbhasin2112]

just small mistake , in theory slide it should have written accept method instead of apply method for Consumer interface.

[@CodeDecode]

Thanks for bringing this to notice. Will see the video again and make required changes if necessary . Thanks 👍

[@anandbabu9219]

ur videos mean alot to me mam, I am able to crack mutltiple interviews

[@CodeDecode]

Congratulations for new job Anand 👍👍keep learning keep rocking

[@lordgreat6051]

Such great explanation thanks mam!

[@CodeDecode]

you're welcome

[@priyankasundar3497]

Awesome❤

[@CodeDecode]

Thanks Priyanka 😊👍

[@mercurialvibesbykanikajind1677]

Thankyou dear 💕💕

[@CodeDecode]

You're welcome

[@arjun9059]

Amazing explanation

[@CodeDecode]

Thanks

[@jayantamandal9732]

Thanks for the video.Really useful.Please also upload the java coding videos on regular basis

[@CodeDecode]

Sure 👍

[@priyankasundar3497]

Consumers and supplier concepts we need ❤

[@CodeDecode]

Sure

[@nalinashekar4134]

Hi Thanks for your effort, i can understand java 8 features very easily from ur playlists. can I have code base for the same(the example code which u have used in demo) can you please share git path to access the same??

[@prernagolani9014]

Nicely explained thx for making the videoo

[@CodeDecode]

you're welcome prerna

[@S_Crypto]

Thankyou So much . bless you 👍

[@CodeDecode]

Thanks 👍

[@kazaasekhar]

excellent thank you

[@CodeDecode]

Thanks Sekhar 👍

[@start1learn-n171]

Tq

[@CodeDecode]

No problem 👍👍

[@sreedharsree361]

@3.54 consumer chaining it should be consumer abstract method accept r8.. instead of apply ? Pls clarify

[@sujithsunny1444]

Very helpful.

[@CodeDecode]

Thanks

[@raunakthorat7023]

Does BiFunction or BiPredicate or BiConsumer support chaining concept?

[@CodeDecode]

Yes they do. But bi supplier is not a concept.

[@CodeDecode]

We have created videos on that too. U can check them out too

[@25ravidixit]

great videos

[@CodeDecode]

Thanks 👍

[@sairamsankaramanchi3678]

This entire playlist was very helpful. Could you please help us by doing a similar thing on Java 11 features?

[@CodeDecode]

Sure Sairam 👍👍

[@LKJHA-sg4cf]

Hi your all vdo is excellent..one request is try to put your all code in categories in github and share link to corresponding vdo

[@CodeDecode]

Sure 👍👍that's a very nice idea 👍👍

[@AmeyaNanarkar76625]

Very much helpful !!

[@CodeDecode]

Thanks 👍

[@muralimohan4035]

Superb Mam

[@CodeDecode]

👍👍 Thanks

[@amarthyaseshu683]

Merci dvoir partge!

[@CodeDecode]

vous êtes le bienvenu

[@shubhamnayak668]

Thanks a lot

[@CodeDecode]

😊👍

[@timmy8299]

awesome work, keep it up mam

[@CodeDecode]

Thanks Amit 🙂

[@gaurav1992100]

Well explained!!

[@CodeDecode]

Thanks 👍

[@aditiAgrawal24]

in consumer chaining what ll be the 3rd output it will be 50 right?

[@nagar4u]

Some more on SpringBoot Interview questions please

[@CodeDecode]

sure will upload soon...

[@moulik9263]

Hi Code Decode, Excellent videos Please cover stream concept as soon as possible we are more interested to see your videos

[@CodeDecode]

Sure will upload this soon 👍👍

[@shirshakghimire]

your videos are great. I also liked 5 5 ja 25 ;)

[@akshitajain5292]

Very helpful video. Can you please upload video on Optional class too?

[@CodeDecode]

Sure Akshita, we will upload them too

[@Aks-gj1kp]

java8 dont have tri or quad etc by default , i dont know why they even have bifunction , you can simply create, bi , tri, quad or so on by just passing another function as the return type for example Function func=a->b->c->a+b+c; System.out.println("tri function: " + func.apply(1).apply(2).apply(2));

[@manojyadavofficial8535]

Thanks for this video :)

[@CodeDecode]

Your welcome 👍

[@kosireddigangadhar7182]

Will you please make a video on DOCKER. ...

[@CodeDecode]

Sure we will do that 👍👍

[@DKRamnani]

Good videos but I have noticed in many of your videos that some sort of background noise creeps into the video like vibrations of your phone etc. Please work on such things as they ruin the whole experience of watching the video and learning the concepts as it is too much disturbing specially the phone vibration noise. Other than that great videos and excellent work!

[@CodeDecode]

True Dinesh. We have worked on it. Now it is fixed in recent videos🙂👍

[@piyushavarshini1176]

Cover more concepts in a single long video, that way we can learn all concepts together without waiting.. they’re very helpful..

[@CodeDecode]

Hi Piyusha, I apologise for the issue that you are facing. We are well aware of that but I am an IT professional working in an MNC at post. We have tasks to be completed every days. Creating videos , shooting them, creating demos takes time and it's difficult for me to spare that long time at a stretch I appreciate your patience. Thanks for understanding this and still standing with us. I will try my level best to increase the frequency of videos. Thanks for the suggestion. 👍👍

[@Ravikumar-gj6qw]

Can u explain how to use static method Identity() available in Function functional Interface plz

[@joejones5746]

Can I use the following ? : Supplier sample = ...... where Employee is the class and I want return type of Employee list ?

[@CodeDecode]

Why not. It supplies, it can supply anything. You can create new employee objects and then create list and return it

[@ManvendraSingh-xh2ry]

In consumer ppt you have used apply() for input whereas it should be accept () I guess, please correct me if im wrong

[@harshadramekar]

Could you please add multithreading interview questions for 6+ years experience ?

[@CodeDecode]

Sure :)

[@abhijeetw693]

Is Function and consumer both are FI? m i right?

[@CodeDecode]

Yep

[@laxmikundrapu9935]

Mam..is there any classes to join for live training

[@CodeDecode]

currently we don't have any live classes but whenever it will happen we will let you know surely

[@thanipattavan]

@16.48 😂😂

[@CodeDecode]

🫣

[@shubhR00ks]

Mam, please cover stream as early as possible.

[@CodeDecode]

Will upload soon 👍

[@nishikantabehera2065]

Excellent explain...

[@CodeDecode]

Thanks 👍☺️

[@dindips]

Do you have any github link for Java 8 interview question?

[@diponsinha5082]

Waiting for Multithreading interview Question and answer...........

[@CodeDecode]

sure will upload soon .....

[@diponsinha5082]

@@CodeDecode Thank you ...................

[@provashs4010]

@@CodeDecode Hello Mam,Any update on multithreading interview questions...still i am waiting....

[@sreeram543]

Do for streams

[@CodeDecode]

Will be uploaded tomorrow positively 👍

[@sreeram543]

@@CodeDecode thank u so much and also .. in core java i dont see type of classes .. in micro services circuit breaker .. and spring features in one video like ioc, point cut ... etc

[@swapnilnagare336]

rt means

[@aishurajas2507]

Consumer chaining has accept method, not apply method. Please correct that part in video. You might be written apply in consumer chaining by mistake

[@kosireddigangadhar7182]

Hi ma'am I am feeing very bad ....??? Why means I am fully waste of my time to following other channels.

[@CodeDecode]

Haha we will take that as a compliment. Don't feel bad. If you are browsing code decode means you are hear to learn. First step is taken Man. You are doing great. Keep learning keep shining Man ⭐✨⭐✨⭐✨

[@jai8548]

upload the part -5 for java 8 interview questions

[@CodeDecode]

video will get uploaded by tomorrow......

[@jai8548]

Tq iam eagerly waiting

[@anilrouto4513]

When will u be uploading the next video on stream and parallelStream?

[@CodeDecode]

Tomorrow it will be uploaded 👍

[@aravindbadavath7369]

Yeah can you upload it soon. Seems very helpful and lot of knowledge with practical example❤️

[@CodeDecode]

@@aravindbadavath7369 it's live now you can check it .....

[@dpyecherla9763]

source code please ..

[@baradasahoo3068]

you keep on sounding much, mind is disturbed in hearing you more than understanding concept

[@venkatb8317]

@FunctionalInterface public interface MultipulParameter { R appaly(A a,B b,C c); } public class PredicateTest { public static void main(String[] args) MultipulParameter sqir=(a,b,c)->(a+b+c); System.out.println(sqir.appaly(12,13,14)); } }//39 just i tried, FYR............

[@barikchandan7963]

Superb mam

[@CodeDecode]

Thanks 👍