I have been applying functional programming by just looking up Stack overflow and other materials online in my code but I have never really understood it until this day. Great tutorial!
An hour into the course and I couldn't stop myself from writing... this is an awesome tutorial Functional Interfaces do not scare me anymore. thank you so much for this course
I admire you. Really appreciate your work to educate others especially for free. Person like you do lot for the community. Please keep this going, never stop. God bless you.
Nelson, I can't thank you enough for all your videos, I've been watching many of your videos and I have learned a lot. I can say that you are my fav Java teacher and you truly honor the word "Amigo"!
that is a great tutorial. thank you, Nelson. i have found one tiny little improvement. In the beginning you say, that it basically doesn't matter, what Java-Version you use, as long as it's above Version 7, which is correct. But, If you are working with Java 8 and you want to follow along by writing down your examples, you'll recognize, that in chapter "Supplier" you use the List.of()-Method, which isn't available in Java 8. It's no problem for someone who has at least a basic understanding of Java, but for total newbies it could get confusing at that point. The Rest is fully usable with Java8. Thank you very much for your work.
I already read some tutorials about this subject but after following this 2 hours video it really started to make more sense. Other than some other free tutos, this guy has a calm, clear and relaxing voice which makes it more easy to follow and keep concentrated. I look forward to the Security tutorial which I will follow next!
Thank you very much! I'm certified in Java 7. But I was thinking of updating my certification, and my skills in Java and you are the best teacher that I found for it. You explain very well and in a very easy way.
After jumping from tutorial to tutorial trying to understand Lambdas and all this functional interface stuff, I finally found someone who could guide me through the very basics of this important programming paradigm. Thanks a lot!!!
I am new to Java programming. I watch several video tutorials before yours. The difference is obvious: your explanations are clear and help understand the why. Great job!!!
I would hit the like button a thousand times if I could, this course is extremely helpful if you want to learn Java Functional Programming!!! Thank you Nelson for the video and I'm already a subscriber and will most definetely watch your other courses! .. and I thank everybody that did leave a positive comment because that led me to watch this video entirely.
This was a very good tutorial. Wish the combinator pattern was further elaborated with real world examples along with other design patterns used in Functional Programming specific to Java.
THANK YOU! I GOT A NEW job TOMORROW AND I havent used java functional programming at my last job.... But will use on new job.... Thanks a lot for your help. I crammed to study this in order to not look stupid at work haha. Thanks alot, this video really helps me understand the complicated functional programming of java 8! :D
Let me express my thanks to you and to the significant effort you have put into these courses. I have learned a lot from you, and will continue doing so. Cheers, and keep up the good work! :)
This is really great Amigo....thanks....please keep doing what u r doing....U're helping people who can not purchase these kinds of online courses.....thanks
Assalamualaikum , dear Mr.Amigos, to be honest i love how u teach us with ur style n made the newbies for easy learn n focus with your course i hopely can enjoy ur all news vidio n hope u made a tutor like this again for begin or basic course like Java,html and else. please respond my comment 😭
Thank you very much Amigos. Wanted to ask for tips as a backend enginner to apply to their first company and also if you were hiring or knew anyone that is hiring
It's a really nice tutorial .easy way to learn functional programming.All tutorials provided by you really helps a lot.expecting one video on java multithreading in depth .
Saludos desde México, este es el curso de programación funcional más genial que eh visto. Muchas gracias por el tiempo que te tomas en enseñar gracias .
thank you for the knowledge that has been given through this channel, I am dani ramdani from Indonesia, nice to meet you ... if you like, I propose to make a tutorial for us to make a simple application in intlej ide with java from the beginning until it can become an application that is installed on the computer desktop
This was an excellent video. Crystal clear on Functional programming! :) Thank you so much Nelson. Might I suggest to post a Java design patterns video (Creational, Structural and Behavioral) in your own awesome way, that would be really helpful!!!
Awesome course. I am new to IntelliJ as I was using Eclipse earlier. Apart from the content of this video, it really helped me to know the shortcuts to be used in IntelliJ IDE which you have been displaying at the bottom throughout this video. Thanks a lot!!
Love your course and the way you explained to us :clearly . I might not understand all the things you explained because English is not my main language but from what i learned from the lesson is good enough :) . Love your tutorial, wish you all the best.
I really enjoyed this video. I've been playing with lambdas but this is something slightly different. Thank You for so clear explanation. I will rewrite some of my simple apply to convert them into Functional versions.
@Amigoscode I think there is a small question which is usually related to this concept - "Can Java Lambda access variables outside the Lambda function?" Can you please cover this as well? Thanks for the lovely elaboration!
Loved the course but felt this course is more of an Imperative styled one and not Declarative style :P More focussed on How and less on What/Why :) Still a good one to grab.
I suggest you look into the Validation monad to concurrently accumulate all the validation errors as opposed to the serial approach that you currently employ.
Great video mate! I really enjoy and learn a lot when I watch your videos. By the way, any chance of having a video tutorial about testing java, spring boot and rest apis down the road? cheers from australia
I mean , a great job but literally more than half of the fundamental concepts related to the title are not explained in the video , like upper and lower bounded wildcards and lamda in the beginning as well as method reference operator ,streams in appropriate depth and yet even the way functional programming works is not actually explained. a constructive comment in the hope of making things better in the future.
Greate course,I really enjoyed it. Only 1 remark. With the callbacks you used a Runnable. A runnable runs in its own thread. Won't that lead to problems? Especially in combination with streams (multi threaded?)
I didn't understood an andavtage of combination pattern compare to "standart code". Actually all what you need is to make private validation methods public. And then you'll be able to use logical operands "and, or, not" to combinate methods. Isn't it easier way to solve problem?
Combinator pattern is cool, but I really wish it returned an EnumSet containing all the validation errors found, instead of stopping at the first one. Does my request make sense?
Hello ! Thank you for your lessons. Please say if extend Function like you did in combination pattern (public interface CustomerRegistrationValidator extends Function). The type of CustomerRegistrationValidator will be ValidationResult ? I can't find any docs about this
Excelent video! I have a question: how would be the method to show more than one error in the CustomerRegistrationValidator? Something like default CustomerRegistrationValidator all(CustomerRegistrationValidator... others) {...some code} Thanks!
I have been applying functional programming by just looking up Stack overflow and other materials online in my code but I have never really understood it until this day. Great tutorial!
You welcome buddy
Right
Functional programming it's great.
I agree with you . It's a good one to learn
@@amigoscode dofffft
An hour into the course and I couldn't stop myself from writing...
this is an awesome tutorial
Functional Interfaces do not scare me anymore.
thank you so much for this course
wow I am so glad for you
Started studying for my OCP and this is EXACTLY what i needed in my life right now. Thank you so much sir!!!
You welcome
I admire you. Really appreciate your work to educate others especially for free. Person like you do lot for the community. Please keep this going, never stop. God bless you.
Nelson, I can't thank you enough for all your videos, I've been watching many of your videos and I have learned a lot. I can say that you are my fav Java teacher and you truly honor the word "Amigo"!
Oh 😯 thank you 😊
that is a great tutorial. thank you, Nelson. i have found one tiny little improvement. In the beginning you say, that it basically doesn't matter, what Java-Version you use, as long as it's above Version 7, which is correct. But, If you are working with Java 8 and you want to follow along by writing down your examples, you'll recognize, that in chapter "Supplier" you use the List.of()-Method, which isn't available in Java 8. It's no problem for someone who has at least a basic understanding of Java, but for total newbies it could get confusing at that point. The Rest is fully usable with Java8. Thank you very much for your work.
Yup. I've substituted that with Arrays.asList() for the beginning (haven't gotten to Suppliers yet, maybe it'll work there too?)
@@MacAndSwiss it will
I already read some tutorials about this subject but after following this 2 hours video it really started to make more sense. Other than some other free tutos, this guy has a calm, clear and relaxing voice which makes it more easy to follow and keep concentrated. I look forward to the Security tutorial which I will follow next!
Thank you very much! I'm certified in Java 7. But I was thinking of updating my certification, and my skills in Java and you are the best teacher that I found for it. You explain very well and in a very easy way.
After jumping from tutorial to tutorial trying to understand Lambdas and all this functional interface stuff, I finally found someone who could guide me through the very basics of this important programming paradigm. Thanks a lot!!!
I am new to Java programming. I watch several video tutorials before yours. The difference is obvious: your explanations are clear and help understand the why. Great job!!!
I would hit the like button a thousand times if I could, this course is extremely helpful if you want to learn Java Functional Programming!!!
Thank you Nelson for the video and I'm already a subscriber and will most definetely watch your other courses!
.. and I thank everybody that did leave a positive comment because that led me to watch this video entirely.
This was a very good tutorial. Wish the combinator pattern was further elaborated with real world examples along with other design patterns used in Functional Programming specific to Java.
Relatively short, clear, concise and most importantly practical examples. Thanks brother.
THANK YOU! I GOT A NEW job TOMORROW AND I havent used java functional programming at my last job.... But will use on new job.... Thanks a lot for your help. I crammed to study this in order to not look stupid at work haha. Thanks alot, this video really helps me understand the complicated functional programming of java 8! :D
great tutorial. Your voice is so calm which makes us focus and concentrate without getting bored.
This is gold! It blows me away that this is all free!
Barakallahu feek brother, your videos about spring boot helped me a lot, since there're not so many on youtube
Jzk brother
Let me express my thanks to you and to the significant effort you have put into these courses. I have learned a lot from you, and will continue doing so. Cheers, and keep up the good work! :)
Great stuff man!
You had to work hard under this course. Thank you a lot, it was useful and very clear explained!
You have amazing teaching skills, Great Tutorial:) Thanks
You welcome buddy
This is really great Amigo....thanks....please keep doing what u r doing....U're helping people who can not purchase these kinds of online courses.....thanks
I love the idea that you are referencing the docs.
The way you explain is amazing and very easy to grasp and implement. Please keep doing such videos which helps a lot. THanks a lot 🙂
Assalamualaikum , dear Mr.Amigos, to be honest i love how u teach us with ur style n made the newbies for easy learn n focus with your course i hopely can enjoy ur all news vidio n hope u made a tutor like this again for begin or basic course like Java,html and else. please respond my comment 😭
Any video that features the words "Okey Dokey" (1:07:35) is good with me... Great course. Very clear and concise.
hahaah thanks buddy
Javabrains also has a very well explained introduction of Lambdas and functional programming. I found it very useful.
That Combinator pattern part is really awesome...Cheers
You are a golden heart ,thank you for these beautiful videos.God bless you 🤲
Thank you for providing such high quality content for free.
Thank you very much Amigos. Wanted to ask for tips as a backend enginner to apply to their first company and also if you were hiring or knew anyone that is hiring
Everything explained in a very simple language. Exceptional... Thank you.
It's a really nice tutorial .easy way to learn functional programming.All tutorials provided by you really helps a lot.expecting one video on java multithreading in depth .
Saludos desde México, este es el curso de programación funcional más genial que eh visto.
Muchas gracias por el tiempo que te tomas en enseñar gracias .
de nada amigo
Amazing. Made me understand more about those arrows function in js
thank you for the knowledge that has been given through this channel, I am dani ramdani from Indonesia, nice to meet you ... if you like, I propose to make a tutorial for us to make a simple application in intlej ide with java from the beginning until it can become an application that is installed on the computer desktop
This was an excellent video. Crystal clear on Functional programming! :) Thank you so much Nelson. Might I suggest to post a Java design patterns video (Creational, Structural and Behavioral) in your own awesome way, that would be really helpful!!!
This is unforgettable course for me on TH-cam. Thanks
Brazilians love u my man, great job!
Awesome course.
I am new to IntelliJ as I was using Eclipse earlier. Apart from the content of this video, it really helped me to know the shortcuts to be used in IntelliJ IDE which you have been displaying at the bottom throughout this video.
Thanks a lot!!
You are welcome
Awesome material brother. Keep going. Jazak ALLAH wal khair. May ALLAH give you success in both worlds. Ameen.
Very helpful tutorial for me as I am beginner. Thank you sir.
thank you for this awesome tutorial
finally I do understand functional programming in java
THIS IS AMAZING! Please keep doing awesome courses like this one!
sure
Really best tutorial for brush up and beginning func prog in java.
Using Light mode in Intellij is like painting mars blue and green.
Idk. My mentors are using the light mode and it's seems to me, already, that it's pretty usual for them, i mean mentors
Awesome! Please do more stuff like this for Java and SpringBoot. Really cool and helpful.
I will
Amigoscode I appreciate that
Useful video, thanks. BTW, you can directly chain the functions like result = incrementByOneFunction.andThen(multiplyByTenFunction).apply(1);
You have great teaching skills and voice, Thank you....
Thanks bro
Love your course and the way you explained to us :clearly . I might not understand all the things you explained because English is not my main language but from what i learned from the lesson is good enough :) . Love your tutorial, wish you all the best.
thanks
I really like the way you present the material. Very nice!
Thanks For making video on Functional Programming, It is so easy to understand. It is the most easy way you have explained .. Thanks a lot again
Your teaching style is awesome. thank you so much.
nice overview of functional java, thank you sir this helped a lot
Excellent tutoring style -clear explanations and examples .keep up the good work.
Thanks Mike
Thanks so much for making this! Really useful and at the perfect pace for someone who knows basic Java but wants to learn something new.
Tq going to complete it by this weekend
Awesome 👏
As i said i completed and soucre code is github.com/SivaGanesh56/Spring-Boot/tree/master/FunctionalProgramming
I really enjoyed this video. I've been playing with lambdas but this is something slightly different. Thank You for so clear explanation. I will rewrite some of my simple apply to convert them into Functional versions.
@Amigoscode I think there is a small question which is usually related to this concept - "Can Java Lambda access variables outside the Lambda function?"
Can you please cover this as well?
Thanks for the lovely elaboration!
Loved the course but felt this course is more of an Imperative styled one and not Declarative style :P
More focussed on How and less on What/Why :) Still a good one to grab.
Amazing Course. im gona watch more videos from channel and share.
Congrats Dude
everything is amazing, only I didnt fully get combinator pattern, I will try to watch one more time then
Thank You, Nelson for the effort You are making to create this tutorials !
coming from react and JavaScript I think I like this !!!
Amigos -> this is really cool!!!!, i just want to know more about combinator and callback patterns 🙂
I love your demo about Combinator Pattern. Thanks
Very good course thanks a lot. You don’t talk about method reference and how to build our functional interface…
Thank you for such awesome content; Bookmark 2:22:00
(Hope I knew about this channel earlier, thank you amigos 🔥)
I suggest you look into the Validation monad to concurrently accumulate all the validation errors as opposed to the serial approach that you currently employ.
I will
Fantastic course, ty for sharing
Excellent turtorial sir !!!
Your content is awesome and very easy to follow. Thank you.
I just want to say thanks you ! You guy is a blessing !
Great video mate! I really enjoy and learn a lot when I watch your videos. By the way, any chance of having a video tutorial about testing java, spring boot and rest apis down the road? cheers from australia
Yes it’s coming next
Amigoscode awesome mate! Will be waiting then 😊
I mean , a great job but literally more than half of the fundamental concepts related to the title are not explained in the video , like upper and lower bounded wildcards and lamda in the beginning as well as method reference operator ,streams in appropriate depth and yet even the way functional programming works is not actually explained.
a constructive comment in the hope of making things better in the future.
Thank you so much ❤️❤️. Now I could understand the code from stack overflow which is written in few lines 😁.
Greate course,I really enjoyed it. Only 1 remark. With the callbacks you used a Runnable. A runnable runs in its own thread. Won't that lead to problems? Especially in combination with streams (multi threaded?)
Thank you, this worth more than gold.
You know how to explain things, thanks!
Great work pal. As always you are awesome explain all these topics. Thank you so much
excellent ya akhi
1:17:24 - Please tell how you are directly changing to method reference . ( I'm using eclipse )
Thank You for this amazing content!
You welcome buddy
Thank you very much beautiful describing!
I didn't understood an andavtage of combination pattern compare to "standart code". Actually all what you need is to make private validation methods public. And then you'll be able to use logical operands "and, or, not" to combinate methods. Isn't it easier way to solve problem?
brilliant content, please consider making course for java multi-threading, build tools (gradle, maven), java IO streams
Cool
Very useful tutorial. Thank you
Combinator pattern is cool, but I really wish it returned an EnumSet containing all the validation errors found, instead of stopping at the first one. Does my request make sense?
@amigoscode turn on super thanks youtube feature in order to donate money, you did great job.
Thanks a lot for the course mate, really good stuff in there !
Very interesting and well-done video, thank you for your work !
Some of the functional interfaces have input and output types mentioned, but some with only input types. What is the structure here?
Jazak Allah Khair , easy to follow and informative
Brk feek
Hello ! Thank you for your lessons. Please say if extend Function like you did in combination pattern (public interface CustomerRegistrationValidator extends Function). The type of CustomerRegistrationValidator will be ValidationResult ? I can't find any docs about this
Awesome channel, man!
Muito obrigado por compartilhar conhecimento conosco.
Thanks for sharing your knowledge with us.
بارك الله فيك
Can you describe the difference between combinator and combiner?
Excelent video! I have a question: how would be the method to show more than one error in the CustomerRegistrationValidator? Something like
default CustomerRegistrationValidator all(CustomerRegistrationValidator... others) {...some code}
Thanks!
Thanks so much for making this! Really useful
why didn't you make on design patterns?, just love your teaching way. keep up the awesome work man!
I will definitely in the near future