Java 8 STREAMS Tutorial

[@iOnlySay]

3:46 IntStream, Range, forEach, Print 4:55 skip 5:43 sum 6:25 steam.of , sorted, findFirst, ifPresent 7:05 stream of Array, sort, filter 8:00 average, map, ifPresent 8:56 Stream from List, map, filter, foreach, print 10:02 Streams from Text file, sort, filter, print, close 11:08 Streams from Text file, filter, collect 12:07 Stream from CSV file, map, filter, count 13:46 CSV, map, filter 15:56 reduce 17:03 summaryStatistics

[@The8merp]

Hey Joe, if you copy paste these timestamps in the video description KZbin will auto add sections to the video, could be helpful

[@gerdsfargen6687]

Easily one of, if not THE best tutorial on Streams for Java 8. I still come back to this when I've not coded in a while after a hiatus. It's so good! Was confounded by the range of Streams functions when starting out in Java 8. Im absolutely zooming through them now and much more confident to create my own. Thank you so much, Joe!

[@atrantech11]

This was infinitely helpful. I love how you gave so many examples. Thus, allowing me to understand and play around with these examples. Best stream tutorial and will come back to it later as refreshers.

[@javadmahdiyoun5552]

دمت گرم با این آموزش خوبت ، ایولا Thanks for this high quality teaching, keep going

[@pascalgu6771]

This is actually better than some of the paid courses on pluralsight. Keep up the execelent work!!

[@kevinjad4506]

No pluralsight(s) were harmed in this comment

[@worstgamingch]

yes

[@rishabhjain8319]

I was taking course there and jump back here :P

[@sanjeevkumar-fk3fn]

@@kevinjad4506 77777777777777777777777777777777777777777777777777777777777777777777777?7777777777777?7777777777777777777777777777777!(

[@gerdsfargen6687]

Spot on. This video...the instructor...excellent.

[@DerSpudi]

Awesome! I wasn't comfortable with streams before, but after this video I immediately changed three for loops of my program to streams. Looks so much nicer and is not so tedious to code. Thanks!

[@teminoah2960]

Exactly,same for me too, I also now enjoy using streams

[@gerdsfargen6687]

@@teminoah2960 They just cut down on so much bulk code and make Java more of a joy to work with!

[@fc6827]

This makes map very easy to understand. God all this time I thought it had something to do with hashmaps, KV pairs etc...this really helps, ty!

[@gongjiaji2489]

Thank you so much Joe, my lecturer can't explain this simple feature in 2 hours, you did it in 20mins. seriously You should teach in our uni.

[@normdeplume6315]

sad but true. Great video

[@mafakka2]

have you dropped from uni already?

[@oldapolda3567]

The Best Explaination i have ever seen about java streams. Thank You So much.

[@Pontification]

This is one of the most useful techniques in Java Ive ever seen.

[@siphesihlesithungu2356]

Simple. Easy to follow. Straight to the point. Basically the most descriptive video I have seen so far on Java streams. Thank you so much.

[@쉐틀]

This is the best video to explain Java collection I've seen in KZbin. Thank you!

[@shankarghimire4492]

Wow! short but very powerful tutorial! You made Streams operations so easy to learn in Java. Except you, everybody starts their tutorial by saying 'Stream is the most difficult topic to learn and understand in Java'. But, you proved them wrong! Thanks a lot for sharing your knowledge with the world! Expect more tutorials especially on functional programming in Java in the same simple format. Cheers! :) :) :)

[@teminoah2960]

Joe James is a great teacher and a great mentor,I must affirm . How I wish have known him in my early days of programming.

[@pslamba]

Kudos for making your example data so culturally diverse!

[@joejamesusa]

I try to match my diverse viewers.

[@nabinrai749]

this type of tutorial covers more topics and condition than others typing n explaining the course

[@Nothoughtinvolved]

Only time I've seen Java 8 streams explained clearly online. Thank you Joe

[@suseelkumarannamraju]

I got a hands-on on streams a bit more than before. Thanks for making this video Joe.

[@netindu]

A one-stop place for Streams. Excellent video. Great Job Joe !

[@dev-skills]

Very good collection of Stream examples, Learning about Files and IntSummaryStatistics was a bonus.

[@810612381]

Intensive and clear, great value for each minute watched on this video

[@karttikmishra4291]

How did this video get dislikes? What did the audience want from the video? I just loved the clarity of explanation and the ease with which he does that.

[@lazben1267]

Ciao Joe, Thank you very much for your valued mini course! Merry Christmas!

[@joejamesusa]

Thanks. You too my friend.

[@avinpaladugu]

Fantastic. Crystal clear and no nonsense class.

[@abail7010]

Wow Java is actually much better when it comes to file handling than expected! Great video, thanks!!

[@jakovkusic4219]

By far the best video about streams on the Internet

[@salmanbaig8088]

Thank you so much. This is the best explanation I have seen so far with great examples.

[@anjalisajeev]

I have watched several videos on this, and this was the best! Helped me understand the concept.

[@afifkhaja]

Fantastic. Although it took my 40 min to write out, run, and understand the code, it was well worth it

[@stevermadter8430]

5:18 System.out::print is the shortcut lambda expression for x -> System.out.print(x). Its Sytnax sugar, the compiler doesnt notice a diffrence

[@shubhampareek2378]

There's one point to note, you can only use static functions with `ClassName::functionName` format. Instance method have to be called using lambda.

[@sumitbabel5415]

@@shubhampareek2378 No not necessary, we can also call getters as well e.g (ClassName::getterMethod) - this will also call the public getter method, kindly let me know if you need a program also

[@ShoeibShargo]

Thank you for clarifying. I was confused why would he call print function like that. This lambda expression is making code unnecessarily complex for me.

[@semilife]

Effortless discussion of a wide variety of stream operations examples. Very good collection of useful examples, to use a guide and a reference.

[@punyabrotad]

excellent tutorial...exactly what is needed for java developers upgrading to functional programming.

[@rafdnaah6078]

Excellent tutorial. I didn't know this exist in java. Loving it. Looks like Java is expanding its wings in the data science world.

[@WHYCANTIFINDMYMONEY]

Gr8 insight

[@JobinJacobKavalam]

Great presentation ... plain and simple ... that is what we want, almost always.

[@Romanov1309]

I haven't touched Java in a while and now it looks like magic to me. Your explanation though made it understandable, thank so much!

[@rkulk]

Excellent work Joe, thank you for explaining this with easy to understand examples.

[@chrisbessant3315]

A great video - small and simple examples that get the message across clearly. Thank you.

[@Somerandomnessvvv]

Streams are saving a punch of blocks of code, this is really helpful. Great explanation.

[@AnasMughal]

Very concise and focused presentation. I appreciate that.

[@GabrielTobing]

Hey dude, thanks so much for making this video. I never knew the Stream API was a thing, and thought it was hard. After you gave those examples and all, I know understand it. This seems to be a really useful API indeed and can't wait to use it, not only that, but it seems much easier.

[@mustapharaimilawal8053]

Wow, this is so insightful, concise introduction to streams api. This is so easy to follow, thanks a lot sir.

[@joejamesusa]

You are most welcome

[@Hufsa]

Really good tutorial, I have used streams but I wasn't sure of some concepts, now it's clear, thanks a lot!

[@sehajpreetsingh4177]

No nonsense explanation. Thank you very much.

[@gamerauto]

Man this is really beautifully explained, I really love this video, and thanks for including Arijit Singh, love from India 🇮🇳

[@chaoticcosal2770]

Very clear cut programming, Thanks Joe for the collection of questions and solution.

[@puneetkocher3370]

Superb video, i have seen many videos but didn’t find any other video giving this much of examples

[@ashethebostonterrier4918]

Very good explanation including using stream, array, map, collectors and lambda. Thanks. I have learned a lot. Very short implementation, but got lots done. I never would have thought using map, filter like in JS in Java. You can see how long I haven’t touched the Java. I need to prepare for interviews in their future. This helped me. Always nice learning something new.

[@pritampatil435]

Excellent. Best tutorial on java stream came across.

[@saravanant7283]

One of the best Java 8 content in youtube.

[@joejamesusa]

Thanks. :-)

[@lexplay85]

Just awesome! Very practical, very simple. I only need to practice. Thanks man!!!!

[@Momo-qr3rd]

Finally I am understanding this topic! Thank you very much

[@ensoniq2k]

This is such a mind blowing feature, thank you very much for explaining in such detail!

[@arthastfp]

I'd like to point out something about example 7. You said it's better to first filter the stream, and then apply mappers. But you are first mapping the original dataset to a new lowercased dataset, therefore iterating through all the info, which in cases of massive amounts of data will slow down the application. The optimal solution is to first filter the stream, and then lowercase the remaining items. The same goes for example 8. This is just a nitpick on a great course overall, and I thank you for posting it!

[@joejamesusa]

Yes, you are right.

[@grzesieknowosad1568]

Hey. I would like to emphasize that this tutorial for Java 8 streams is really great. I've been looking through internet for some good explanation. Found many sites or tutorials, but this one is best quality step-by-step. I found everything that I needed from the beginning. Thanks

[@ranachan5555]

Joe, Great explanation , Covered many but not more like parallel streams and all.

[@vigneshbaskaran1990]

Beautiful , nicely explained , pls add List also add one example . that would be great

[@fotoamgamgfoto3695]

Thanks! I quit using Java after 12 years of Java development around V1.4 a couple of years ago when Generics came into it and I hate Generics. I become a Frontend JS developer, but now need Java again as a fullstack to learn what new things come up and this Stream API looks cool, smilar to ES6 stuff! I might be interested in Java again.

[@JERILNADAR]

Super tutorial. Made me go from hating Streams to loving it.

[@suriyaprakhash]

U nailed it. Short crisp and clear. Appreciate your work👍

[@gsabella4]

Fantastic video on Streams, and really appreciate the content on your Java repo.

[@joejamesusa]

Great to hear!

[@SHSelect]

awesome, an easy understanding video for me to have a basic knowledge of Steam class

[@rajeshshrivastava3983]

Amazingly explained java8 stream,lambda use in just 18 min. Which is more awesome 😎

[@NanCitizen]

you are a smart cookie. Thank you for this refresher

[@dianadutka5764]

love how it was simply straight to the point!

[@tarun3kumar]

Very informative tutorial. btw 3:05 anyMatch() and findFirst() are terminal operations and do not return Stream.

[@Anubis10110]

I really want to understand WHY PEOPL dislike it...They most properly envy HIM 1. Perfect English Accent 2. Perfect Explanation 3. Samples 4. Code What else do we need :D Thank you so mcuh

[@vladimirljubopytnov5193]

I guess because of errors? But I agree, its pleasant teaching overall.

[@moayadyaghi]

Is accent really the first priority?

[@kirankumarmothukuri8744]

Thank you very much James. It's very good demonstration. Keep it up.

[@eternalwanderer6057]

Just commenting to say thanks, Joe. This was a VERY helpful tutorial. THANK YOU!

[@masebor]

spot on tutorial, thanks for the introduction into streams, have a nice day.

[@lajoskorona3501]

Ah, lovely, thanks! I can't use a functional language for my exams (Haskell

[@yogeshchaudhari9971]

Amazing explanation... short n simple and direct to the point

[@vikingofengland]

Short and concise, good job.

[@ManishYadav-mt6zt]

This is short precise and gives all the valuable information. Thank You so much for the nice video!

[@psonney]

Thank you. in example 9 , we do need to close the bands2 stream as well.

[@carbonateddippingjam4970]

THIS IS THE VIDEO I WAS LOOKING FOR. Thank you.

[@shahradabghari176]

best video about stream that i have found

[@exxzxxe]

Very well done, Mr. James.

[@joejamesusa]

Thanks

[@sandykhp]

thanks joe. love and respect for your work from india

[@anwardarkazanli7160]

Very thorough explanation, thanks a lot!

[@venkatbollimuntha178]

Excellent!! Clear & Concise . Thanks so much.

[@diodorsaydofmi3504]

I'm a simple man I see Arijit's name (12:00), My day is made ☺

[@skyFullOfStars]

I wonder how Joe knows Arijit Singh! 🤔

[@changhaizhu7854]

Very nice Tutorial. Thanks a lot, Joe

[@mathisinav4267]

18 minutes well spent, excellent tutorial

[@matt-g-recovers]

I usually do a like/dislike ratio assessment before committing time to a tutorial. Sheesh lot of folks liked this vs not right? ~100:1 well shoot if that doesn't seem like too much, it is an order of magnitude better than what I consider the gold standard for a good video ( 10:1 like to dislike). Great video :)

[@joejamesusa]

Thanks! I hope you added another like. :-) FYI, ratio for my whole channel is around 96-97% likes to 3 or 4 dislikes. This is one of my best videos.

[@nimbostratue]

Thank you Joe for this excellent tutorial which is probably better than most of the ones out there.

[@lokmanboukhoulda4496]

Wow great explanation, thanks Joe!

[@dontknow6356]

Best tutorial i have ever seen

[@MrScubesnaxx]

Great presentation....you really deserve more subs!

[@ashu47202]

REALLY NICE EXAMPLES explaining various usage options of Streams API. Thank you !!!

[@balyaajiskan2194]

best one .. i ever watched..well explained... thanks

[@alexandre9051]

great video! even though it is 5 years old, it is still at very good starting point. Thank you

[@tarunmadan6109]

Good video. Thank you for explaining streams with examples.

[@evgeniynorfolk5909]

Thanks for good and understandable examples! You are nice teacher!

[@jasonzhang1133]

Thank you so much for such a nice video explaining the stream concept very well.

[@SunilKumar-yd8xv]

16:28 : You don't need to declare parameter types. Below would work double total = Stream.of(7.3, 1.5, 6.2, 7.9).reduce(0.0, (a, b) -> a + b);

[@ShoeibShargo]

Being a novice, this is confusing to me whenever I come across a variable which is not declared in a program. How would this line of code determines what a and b is? Is it a var type by default if we do not declare it explicitly?

[@vikasjain5466]

Best Streams Tutorial out there

[@eletronicof]

Thank you so much, regards from Colombia.

[@deepap2068]

Your videos are awesome. Thanks Joe. Also, It would be great if you could group your videos into playlists like Java, Streams, machine learning paths, etc. It’s kind of difficult to get hold of the whole series.

[@luiscortes6563]

Great video! Loving streams already!

[@tobyzhan7729]

Simple, rich and elegant. Love this tutorial!