Java 8 Lambda Basics 23 - Introduction To Streams

[@sagar7730]

I am a fan of the way you start your course with such simple examples &explanations, & then so smoothly navigate through the complex part with ease for your students

[@brandonflorida1092]

You're much clearer than any other Web software related teacher.

[@uchennannamani5795]

The best explanation of java streams that I have seen so far.................. excellent !!!

[@willhan2830]

Sir, you have an exceptional talent for explaining complex concepts in a very clear way. Thank you for your very good work.

[@neilcowleyUK]

Possibly one of the best explanations I've heard on Streams, well done!

[@hyperborean72]

Thank you so much. You have a great talent of making frightening things simple

[@christianitis]

RETVRN

[@padkote_rahul1234]

this channel always blow my mind by the explaining things in the breaking the ice manner. streams is the concept where i always struct to learn but this video made me take a look man.

[@shuchami]

This is a very good course. Any chance on a separate course on streams?

[@ke30_]

I just have to comment: this course is EXCELLENT, thank you

[@nischaljadhav8395]

Though this course is 6 years old still its content is fresh and helpful. Who else is here to watch this video in 2023 : )

[@chandreshpratap]

2024

[@AbhishekKumar-uo6we]

@@chandreshpratap 2024

[@resnik20]

Awesome analogy for the streams concept!

[@tirthjayswal9895]

Finally I can say I have understood the basics of Streams.

[@indra4011]

The difference in mode you deliver your content stays there for lifelong ,would love some content on analysing concurrency issues, profiling...

[@kathiruby]

This series of tutorial is excellent. Hats off !!!

[@solomonaryeetey7370]

This guy must win an award!!!!!

[@jayan007videos]

Beautiful analogy. Love your style of teaching. Keep it up...

[@memorablename5187]

streams have completely changed how i write java they are simply awesome

[@lubasiteddy]

You did justice to the topic at hand, streams make sense now

[@diegogiardini]

It helped me a lot getting into streams! Thx!

[@atanumondal8078]

You are a great teacher . You are the reason I am still coding . Please make one course for streams as well . It will be very helpful for lazy guys like me whom you spoon feed all the time with your knowledge.

[@mitalivarshney5168]

Your perfect analogy made concept of streams clear in my mind. Thanks a lot!

[@rakeshmehra6321]

Thank you, I was banging my head to understand these concepts. Only you explained it in right manner.

[@alessandrobruni568]

Grazie.

[@Java.Brains]

Thanks so much!

[@perschistence2651]

Unfortunately the link in the video description is not working.

[@fc6827]

You taught me something I was afraid to learn. Keep rocking

[@sssauka]

amazing explanation of streams !

[@sakuragi1111]

Thank you so much! Excellent explanation!

[@sanjeevs2127]

This is simply brilliant. Great job!

[@mikeCavalle]

excellent example and presentation.

[@SanjuChougule]

Amazing skills you have... Explained in a lucid manner...

[@rezoanhasib8394]

Omg this is so useful and easy to understand. I guess Kaushik is just being Kaushik out here lol. Plz do an advanced Stream and Lambda playlist for all us plz plz :D

[@sharidass1408]

production line example makes a lot of sense!

[@kaushikighosh]

Great course. Has improved my understanding of Java 8 a lot. Can you also do a tutorial on java 8 default and static method in interface?

[@rajas4556]

Well explained. Thank you

[@nitantjoshi8614]

Very helpful. Thank You.

[@aakashKumbhare]

hats off!!!! conveyer belt example

[@syedshahasad9551]

Great! You made it quite simple :)

[@mahesh41000]

In Streams, will the second element start processing simultaneously while the first element is down the lane? or else the second element will only be started after the first element is done processing???

[@keerthichandrac2507]

You made my day! Convert the complex things to easy to understand. Could you do more videos on Streams concept please? Waiting eagerly. :)

[@ajitganiger6699]

Very powerful,,, thanks for nice explanation

[@RajeshPatel-of3qo]

I tried testing the performance and the streams degrades performance a lot. The test I ran was with half million Integer of ArrayList and tried the forEach loop on stream (list.stream.filter.foreach), traditional for loop and for-in loop and stream was slowest. I assume multiple operations on the stream creates new iterator which slows it down? Any explanation? I will really like to know.

[@Isheel]

Try foreachinparellel

[@anandraghuvanshi2116]

Very easily you have explained the concepts. Really liked it. Do you have have full java 8 tutorial in depth ?

[@bhargavjoshi9]

Please make a separate course for streams. It would be very helpful as this course

[@celecha]

Thank you! Loved the analogy!

[@manojmajumdar3815]

The filter and foreach operations can be done using a for-in loop and an if condition, so why use streams for that?

[@monsterhuntergo]

Hi Kaushik, hope you'll have separate course for Streams including in-depth.. 🙏 thanks so much

[@dictatorts]

But we can do all operations on all elements in one loop. Streams can do this more effectively or just make code more clear and easy?

[@aaroldaaroldson708]

yes. I don't get it too. Did you understand the reason?Please reply

[@sreedevikoppula1459]

As per my understanding, if you are including all operations in one loop, all these operations will be handled only by one core and that too sequentially. But, by using streams, in the example given in the video, one core handles the filtering of a person based on the last name and soon after the filtering is done, the result is forwarded to the next core that handles the printing of the first name, where meanwhile, the first core is acting on the second element in the stream for condition check, etc. This enables the parallel processing on the list, where we can expect some performance improvement.

[@hyperborean72]

It's powerful but it looks like just another form to organize the same 'assembly line' processing identical to for(if()). So what is the advantage in your opinion? Filter() mislooks like more economical but in realty it processes the collection the same way - from the beginning to the end

[@kapiljain7596]

Your videos are really good. It is helping me to grow technically. Just a suggestion can you please increase the font size while coding.

[@zzzz26526]

Great video. So essentially this is like LINQ in .NET?

[@sanketb7128]

Is it possible to add multiple filter conditions in stream which are 'independent' of each other? Imagine a traditional for loop on a list that has 2/3 if conditions that are not related to each other (without else)?

[@pragun1993]

@Java Brains : So, according to your assembly line analogy, the filter operation would be applied to first element and then based on outcome would be sent to next operation which is forEach, and so on for the rest of all the elements. I hope it's not waiting for filter operation to be applied to all of the elements before sending them to forEach, then streams would be no different than collections. Is there a way we can check that what you explained is how streams work in the background?

[@jvsnyc]

:azy evaluation is pretty awesome, you can see this stuff in this excellent video:kzbin.info/www/bejne/Z4DTcpqQq76LgrM

[@girishsudarshan1879]

Wish I could give more than 1 like for this video.

[@hyperborean72]

Starting Java8 List has forEach() method itself. So what's the point of having List.stream().forEach() instead just List.forEach()? - the additional set of the methods available in Stream API?

[@anupamkumartejaswi9210]

Understanding streams was never this much simple

[@akshaygupta1990]

hi Sir .. great fan of yours .. i am eagerly waiting for some more streams and collections sessions from you .. thanks in advance..

[@SonnyLando]

how can you filter out numbers between two numbers? For example, there is an array: new int[] {3, 1, 6, 7, 15, 9,10} I don't ant to .sum() the numbers between and including 6 and 9. So it would .sum() 3,1, and 10. Thanks for your help in advance...

[@vJDiZZ]

What IDE is this?

[@danielgarcia4151]

But isn't this like a "for" loop with an "if" inside and several operations applied there to the element of the collection? I can't see any difference in concept, only in the way to write it...

[@shefaligadia7094]

Please provide an advanced course on lambda, collections and streams

[@brave111111]

Awesome. Thank you

[@TheGuroguro12]

Thank you very much.

[@maverick_entertainment21]

Thanks for the wonderful tutorial. Coming from a Javascript background, I find streams quite easy to understand. But what is happening inside ? The analogy is perfect, but I am asking what is going on at the data-structure level. Is there a scope for parallel execution as well ?

[@umabapat8826]

What if I want to execute if (filter) and else part with stream? like if lastname doesnt start with C, do something else?

[@SamuelHauptmannvanDam]

What exactly does the package do?

[@anpowersoftpowersoft]

Just Excelolent. Kindly upload some courses on java 8 like Streams.

[@shravandurvasula5904]

Indeed very powerful. Its a sin to not use them wherever there is a chance.

[@vinodnarapuram6054]

Hi Koushik, Your videos and explanations are very good. Is it possible to make a playlist in detail on Stream API? Appreciate your response in advance. Thanks!

[@muditbajpai1218]

Very informative course. For more thorough knowledge on Stream API, could you please let me know another source, probably a video tutorial which explains in deep. There are many in the market, but seeing all of them and then deciding would take a lot of time. Help would be appreciated.

[@aaroldaaroldson708]

What's the advantage of the stream pattern over this code? : for(Person p : people){ if(!p.getLastName().startsWith("C")){ continue; } System.out.println(p.getFirstName()); } I've checked both approaches and the code above executes in ~1332330 nanoTime. And your code executes in ~61750418. So it's about 60 million nanoTimes more than the old fashioned code. Any reply is appreciated

[@jvsnyc]

For one thing, it is easily parallelizable "for free". Of course nothing is for free, but if you are in a rush and willing to throw CPU's/cores at your foreach....

[@syedhuzaifa2106]

awesome

[@einnorw]

how are you able to use the getName(); method with out it being declared

[@tanozepp]

I have the same question. My guess is that there is one or more videos in this series where he has declared those functions.

[@BrajeshKumar-np1br]

He imported Person class (from another package) which has getFirstName() method.

[@mrudulaization]

Please make a separate course on java8 collections and streams

[@travelshortsbykamini]

Why don't you publish all your courses on UDEMY?

[@patel644]

please do make videos on advance lambda and streams...Please

[@bhanuchirutha]

great analogy

[@hengcui6786]

List people = Arrays.asList( new Person("Charles", "Dickens", 60), new Person("Lewis", "Carrol", 42), new Person("Thomas", "Carlyle", 51), new Person("Charlotte", "Bronte", 45), new Person("Matthew", "Arnold", 39) );

[@perschistence2651]

?

[@chiranjeevibabakondapalli2393]

Waiting for more sessions on Java8 Streams

[@vigneshdeven3177]

please , please make advance course video on lambda and collections

[@neerajsuthar3931]

A piece of cake :) :) :) That I just ate.....

[@sivashankar1850]

make a vedios on collections and streams

[@huseyinaydin99]

way gardaşıım lamdayı da senden öğrendim. (:

[@Bobxchen333]

Stream is immutable.

[@disekjoumoer]

That analogy was poor. There was little relevance to various people all working on the same object. Threads would have been more useful here.

[@tomorrowhastowait]

[@Rajmanov]

Your voice is really annoying, but it's well explained.

[@balkrushnawagh2641]

Waiting for more sessions on Java8 Streams