Java Tutorial
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- เผยแพร่เมื่อ 26 ส.ค. 2024
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This is an updated Java tutorial that covers what you'd find in a 1,000 page book. I cover Main, Println, Variables, Data Types, Casting, Math, Random Numbers, Strings, StringBuilder / StringBuffer, Arrays, ArrayList, Iterators, LinkedList, User Input, Conditionals, If / Else, Ternary Operator, Switch, For, While, Do While, Methods, Recursion, Enumerated Types, Exception Handling, Class, This, Getters / Setters, Printf, Inheritance, Interface, Abstract Classes, Streams, Map, Filter, Reduce, Lambda Expressions, File System Manipulation, Character Streams, Binary Streams, Generics, Threads, Databases and more.
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Python : th-cam.com/video/N4mEzFDjqtA/w-d-xo.html
Java : th-cam.com/video/n-xAqcBCws4/w-d-xo.html
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Derek Banas when you say bookmark? Do you just mean by product of subscribing to your channels the lessons will be bookmarked? Or so you mean like there’s actually a way to bookmark like the watch later feature in TH-cam?
i love you man, it helps me so much to watch these videos
Dam thanks for the table of contents ;.;
TABLE OF CONTENTS
00:23 Intro
02:11 Main
04:51 Println
05:38 Variables
06:18 Data Types
10:03 Casting
12:57 Math
15:56 Random Numbers
17:04 Strings
23:18 StringBuilder / StringBuffer
26:30 Arrays
33:39 ArrayList
36:05 Iterators
36:57 LinkedList
39:45 User Input
42:11 Conditionals
42:54 If / Else
45:06 Ternary Operator
45:43 Switch
47:07 For Loop
47:33 While Loop
48:55 Do While Loop
50:20 Methods
53:28 Receiving Multiple Attributes
57:37 Recursion
1:01:03 Enumerated Types
1:02:01 Exception Handling
1:04:34 Thor Vs. Loki
1:04:51 Class
1:07:26 This
1:07:45 Getters / Setters
1:15:00 Printf
1:22:50 Inheritance
1:27:35 Interface
1:33:22 Abstract Classes
1:34:28 Streams
1:36:37 Map
1:37:49 Filter
1:39:18 Reduce
1:41:01 Lambda Expressions
1:44:11 File System Manipulation
1:46:21 Character Streams
1:50:09 Binary Streams
1:54:02 Generics
1:58:26 Threads
2:10:06 Databases
JavaFX, Java Web Start, Servlets and Server Pages coming soon
Hats off sir I like your videos .!!!
Yes waana see that to
Thank you :)
@@derekbanas sir u have a fb page?
Yes, but I never look at it. TH-cam is the best way to reach me
Derek is the person who will be remembered by thousands and millions forever for changing their lives substantially for good
Thank you for the nice compliment :)
He is THE BEST!!!
True thank u Derek so much and please continue with FX and so on. We need u, and guys I recommend this course in udemy from Tim Buchalka, I've already recommended to all my friends , but u need to know too, www.udemy.com/java-the-complete-java-developer-course/
Indeed. Thats lot of good karma for him. Derek you are awesome
He is my godfather
Perfect timing. I haven't touched Java in at least 2.5 years and just landed a Java gig the other day. Great refresher!
Thank you :) I'm happy it helped
Java gig, as in job ?
This is so beautiful I almost cried. I wish I was joking but for high school CS (any for that matter) this is a goldmine... God bless this man.
Thank you for the nice message :) I appreciate it!
THIS is such a public service. I watch Derek's videos to get the low down an any language. Always concise.
Thank you for the nice compliment :)
Sir waana say that without tutors like you learning programming would be very difficult.Hats off to you for your effort ( 30hrs really) Thank you
Thank you for the compliment 😁 I'm very grateful to everyone that watches my videos
My guy, Derek, here has officially taught me my 8th programming language! Big thanks to you, brother!
Thank you :) It was my pleasure to help
Derek is the very reason I managed to turn my life upside down and pretty much the only resource I have found that I can learn from! Going from working in multiple jobs where my mind wasn't put to use and aspiring to get into the technology world ... I started to learn through all of Derek's tutorials; I have now managed to secure myself just one role utilizing all the knowledge gained from these videos and live a happier and more comfortable life - I transformed myself truly thanks to Derek and his brilliant videos. I would love to see a Kubernetes / Docker tutorial. Thank you again Derek!!!!!
That is amazing to hear! Your message made me very happy! Congratulations on all that you accomplished and for what you will accomplish. I just make the videos. You do the real work!
I'm so insanely grateful for your short crash course videos. Makes it so much easier to learn the fundamentals of new languages once you know one or a few well.
*watched a video about Java* -> applies for developer position....
It's been 10 months, how's it going now?
@@arwahsapi He's the CEO of Google now.
The steps should be
Watch video
Build a webapp(so might need to learn some basic css, html, JavaScript, and then use template)
Build a web app(on anything but let it be somewhat robust on the backend)
Apply for a job
God.. You don't know how much I love you brother haha. Thank you for the video
Love you to :)
oh. a no-indian-guy java tutorial ... bless you friend.
Why are u a racist ?
You should have named the project Java the Tut.
Haha:)
That's funny :) I changed the code link based on your great idea!!!
Sorry, but what is the joke?
@@visibletonone.superiortoal2033 It's a play on words for a Stars Wars character.
Oh, thanks.
ohhh .. maybe I'll refresh my Java here, it was quite some time. I work in JS about two years now and do not want to go back to Java, but do not want to forget it also :)
Thx for this video.
I hope you find it useful :)
Derek from the bottom of my heart, you are truely awesome.Thank you
Thank you very much :) It is my pleasure to be able to help everyone
Dude I was asking for this for months !
Just so glad that you released this video :D
Thank you :) I'm glad you liked it
Best teacher on TH-cam !!
Thank you for the nice compliment :)
Savior as always! About to get back into Java for my job and I needed a refresher. Nothing better!
Thank you for clear, concise examples and a great pace. As usual, excellent work Derek.
Excellent tutorial for both those new to Java and those willing to get a refresher!
Thank you Happy to be of help :)
Thanks Derek. Can you do one for Solidity, Design Patterns in general, Spring, and most importantly one for Algorithms and Data Structures
I have tutorials for design patterns, data structures, algorithms, refactoring, object oriented design and more on my TH-cam channel. I hope they help
@@derekbanas +1 for Spring / Spring Boot ;) and Thanks for these! You know a lot about a lot of things! Very impressive.
Idea - Learn in One for some modern framework React/Vue or something else like GraphQL. It would be great since most decent video tutorials are paid.
I'm working on all of the above. Thanks for the request :)
Is there a command and possibly an idiom to make the code: Concurrent && Parallel threading??
C++ has a simple command for parallel.
Concurrent is a semi-new term for me, but it sounds very very useful if it could be used in software too
did anyone else unblocked adds only bc u respect so much this guy, plus i am sure I'm gonna watch this vid over and over again, glad i found u, plz make the extend with other stuf like fx and so on plz plz thank u , u really are a life savior :)
Thank you very much for doing that :) Between advertisers refusing to support education channels and ad blockers my income fell almost 80% this year. Your support is VERY MUCH appreciated!
Hi, Derek. In the minute 32:00 when you mention the order of the 3D array, it looks like this must be the correct order a5[page][row][col]. This is a great tutorial, thank you for sharing your knowledge.
i wanted to leave my Job and do something new but after i saw your c# Video i got huge Motivation.Thank you Dear Derek!
Thank you for taking the time to tell me! It is amazing to hear that I have helped so many people with their careers! That is why I started my channel
Man I bet you're a genius!!! how many programming languages do you speak??? allow me to say speak instead of know because I'm realizing you're the best programming training specialist and your youtube channel is the only one where people can stay tuned. keep it up man, you're the best.
Thank you for the very nice compliment :) I've used pretty much all of them. If I can do it anyone can
Absolutely loved the video, It will probably hard for someone new to JAVA to digest everything but definitely a great refresher when you already know the language!
Thank you :) Yes it isn't meant for beginners to programming for sure
Yep! Totally agree! It being perceived very fluent for from-Clojure-to-Java dev
This so overwhelming especially for an average person like me, I stop and absorb, apply then continue. My brain is aching. Thank you for this tutorial. Long live Derek!
Do you think you could do more videos about Rust and good crates in the future? I have really started to like the language but it's a bit technical to get going and I don't know what good tools I can use to be efficient in the language. Thanks either way.
Yes I hope to give more attention to Rust soon
Derek Banas has objects inside of it.
ya know I have watched this video so many times I can mouth the words!!
Don't misunderstand, I got it the first time:)... I'm a professional Android developer but still there are times where I could go months without using something in Java and might forget its there when building a solution!😂Anyhoo...this keeps it fresh, let it play in the background.
Derek your videos are the king of reference material for me. Thank you!
Thank you for all the nice compliments :) I greatly appreciate them and you!!!!
i finished a whole year studying C and creating my own lists and ADTs just to know that java has the exact same features built in lol
know that pain man
You are an amazing person Derek, I love how you cover nearly every tech that is in demand (and even that which is not!). Thank you so much for your hard work.
Thank you for the nice compliment :) I'm very lucky
Thanks Derek,simple,straight forward! I have been following your videos for quite some time and I love them.
Thank you for the nice compliment :)
@@derekbanas Wow thank your for your response man !
This channel is my go-to for any tech tutorial. Thank you Derek!
Derek you're a life saver. Only If modern educational institutions followed your way of teaching.
It is my pleasure to help :) I'm here for free when ever I'm needed
The general consensus seems to be that C++ is quite a difficult language to work with, but - coming from C++ - Java seems incredibly messy... thanks for the getting me through the basics.
I come from C# and C++, this video is exactly what I need since C# and Java have a lot in common, thanks.
I'm happy to be of help :)
As I am reading "Head first Java", this is very well timed :D thanks Derek for such great work !
Thank you :) I did my best
Wow, this is amazing, I have been learning how to build a website before. Java is a bit complicated and it usually is for applications, I am getting it now.
man helped me get through my python exam when I was in my first year of college, 5 years later here I'm again for a refresher before I apply for a job position
I wish you all the best with your new job :) Happy I could help
Did you get the job?
in 2:24:40 we do not need "Class.forName(....)" it is in old java (7 or older)
Really appreciate the work that goes into these videos. I'm sure it takes a good number of days/weeks to make these. Thank you!
Thank you :) Yes it takes a while, but I've decided to focus on quality over quantity and everyone seems to prefer that focus
Btw .. I just looked at one speed run in Resident Evil 2 and several no hit speed runs in Dark Souls trilogy.
You videos are kinda like speed runs in world of programming languages :D
I enjoy making these fast videos because nobody else makes them
* disables adblock *
I hope I can land a job soon enough to become a patron. I owe you my CS degree too :')
I love being able to help people and people like you allow me to do it :)
IMHO you shouldn't even use an adblocker as a developer. One day, your salary might depend on people not using adblock :)
The best ever
Thank you from Syria.😘😘
Thank you Derek! Your are the best!! :D
Thank you :) I try to do my best
Great job, man. Congrats!
Thank you very much :)
I would love to see some more in depth Java tutorials/series, for instance web development with Spring Boot and some kind of JS framework like React or Angular!
I'll cover JavaFX, Servlets, Spring in the next video
@@derekbanas Good stuff! I'll stay tuned
Thank you so much Derek for this nice tut.
coming from c++ helped me a lot in learning java .
we would like to see a video on Java Fx , Java web and other stuffs you named at the end of this video .
Thank you😁 I'm happy you liked it. I hope to do more with Java soon
Derek, i have no words to thank you for all your great job: you make tings simple and accessible to everyone! "Merci!"
Thank you very much :) I'm very happy to hear that I could help!
I thought u wrote "Meesa" from GoT..hahah
Me: I will not learn this language.
Teacher: *threatens me with the worst mark*
Me: I will learn this language.
That's how I ended up here. I'll do my best.
Loved this "tut" man...thank you very much!
Thank you very much :) I'm happy I could help
Haven't even watched it yet already know its gonna be good.
Thank you for the nice compliment :)
An excellently compiled tutorial on Java!!
Thank you very much :)
3:28 You should have provided more information about the "import" statement:
It basically allows you using stuff that is it in other Java files - classes, methods inside them and properties
Not only that, but these files are physically located on the computer. You can literally go to Java's directory, then go to folder "util" and see all the files that are in there, and then see that the IDE will allow you to use any stuff from any file.
Sorry, TH-cam has a maximum file limit and I covered as much as possible. I'll have to make a supplement to cover those things that didn't fit
Honestly Derek your Thor vs Loki game reminds me of the Runescape days hahaha I don't know if you ever played it but that was my first game and watching your examples brings back the nostalgia.
That's cool! I just thought it would be fun. I never played Runescape, but I had a minor WOW addiction for a few months
Wow excellent work sir, have actually been looking into different java tutorials but i must say it was nice,its kinda funny how we try to explain how much java can offer java and its amazing features all at once to every one but cant, actually been posting stuff about the intriguing stuffs in java and i wish people get to learn and appreciate our efforts as we try to build a community of creative developers ,An excellent work tho, i appreciate your effort.
Thank you so much for this Derek :) You have always been my go to programming youtube channel!
Have you considered doing a tutorial about JAX-RS / any other way of working with microservices in Java?
Thanks, Derek. I'm starting to get it.
Aap bahoot zabardast hai bhaiyaa!!!!love from INDIA
Hello Derek :) Thank you very much for this!!!! This is extremely helpful, it covers everything! Can't wait for future uploads, you're awesome!!! :)
Thank you Exodus! I was going to cover JavaFX, Servlets and more but TH-cam blocked the file because it was so big. I'll upload the rest next, but I don't know what to call it :)
@@derekbanas You're very welcome Derek :) I just don't know what to say honestly... You changed my life, I really don't know if I can ever repay you, I've been learning from you since a very long time, you're really inspiring.
I'll be watching the full video now,
Thank you a lot, I really mean it!! :)
I owe you a lot!!! You don't know how cool it is, when you are a creator, to see the same name each video!!! That is one thing that keeps me motivated to keep making videos.
@@derekbanas Thank you very very much! :) I owe you a lot as well! :) Learning from you every single day.
I'll always be here :)
Really!!?? Am fired up!
I truly thank you for the incredible work you put into this video. Seriously, this is a great reference for anything that I need a quick refresher on!
Thank you :) I'm happy the video helped
And this will evaporate 99.99% of paid lessions needed to learn the basics of java
GJ dude :)
Thank you for the compliment :) The goal is a free education for all!
Watching this before my job test. Wish me good luck
Best of luck at your job :)
I have started learning Java recently and I am wandering what sort of java frameworks should i learn and know? Thanks a bunch!
Thanks for this amazing video. You cover a lot of cool tricks which I wasn't aware of. You should publish your own programming book :-)
Thank you :) Maybe I'll write a book some day
Hi Derek can please explain the random # and using math.random() part i am a bit confuse on how it is implemented?
Sometimes people do not watch long videos, if you could share as Java tutorial list and separated based on TABLE OF CONTENTS, most probably you would get more views and more reactions from viewers. Great tutorial! Thanks :)
Thank you for the input. I have a large Java tutorial that is 94 videos long here th-cam.com/video/TBWX97e1E9g/w-d-xo.html
@@derekbanas Thank you for letting me this. But I have already finished that too :)
This deserves more views
Thank you :)
Well, It's up to us! Just spread this ;)
Thanks for all of your hard work, for your precious time and for your kind heart.
Thank you for the nice message :) I appreciate it
Great tutorial Derek! 😃 Suggestion for the future, you could expand it to Spring framework for Rest Apps and more. Especially for Spring Security there aren't many tutorials in general. :)
Of course c# with asp net etc. series would be brilliant as well! :D
Thank you :) Spring, JavaFX and more are coming
@@derekbanas Awesome!!! Will watch them! 😃 haha
Keep it up Derek! And have a great weekend!
Thank you so much, this is an amazing resource and I reference it constantly.
Thank you so much for sharing the knowledge man.
It is my pleasure to be of help
For those still struggling with recursion - spend 30 minutes on Khan Academy with Introduction to arithmetic sequences (Algebra 1). After done with exercises, recursion will be like second nature to you.
Thank you Derek Banas and Sal Khan for making world a better place :)
Thank you :) I'm happy I could help. I love Sal as well
Your "learn in one video" videos are so good as refresher courses for languages I haven't used in a while. You are a god send sir! 👏
Thank you :) I'm very happy to hear that they help
Oh My God!!!! Just signed in and guess what greeted me. THIS VIDEO
I'm very happy that you liked it :)
same here hahah
Thank you for continuously pumping out great learning material and making the world a better place
It is my pleasure 😃
Thanks very much for yet another unique and amazing tutorial Derek !
Your efforts and immensely appreciated
Thank you for the compliment :) It is my pleasure to help
I think the initial setup was not necessary, as it may put off people who are new to Java before they start. Another good idea is to use jshell for initial few statements, like println and arithmetic operations before using an IDE. Nevertheless, I have learnt a lot from your previous Java tutorials series. Thank you.
I am waiting eagerly for your JavaFX tutorials, but I would suggest not to do Java Web Start as it is not supported any more.
I LOVE YOUR TUTORIALS!! Can you please make new videos for CSS, HTML, Javascript , ES versions and jQuery ??
PLEASE! you are indeed the best out there !
Thank you very much :) I'll look into your requests
Thank you for your effort sir! For people who learn by watching, this channel is golden. Thanks again!
Thank you😁
Derek, Thanks so much for Making this New Tutorial :D
Thank you for watching my video :)
Your videos are excellent, very much appreciated. I have a question, honestly not nitpicking. You mentioned linked lists might be good if you want to make changes to the middle of the list. Can you give me an example of what you mean? My understanding is that operations on linked lists that are not at the ends take linear time. So I'm just curious what situations you might choose linked list for this purpose? Maybe a hash table with separate chaining where we have short lists?
Thanks again; your effort is not unnoticed!!
I am so super excited to watch this! Thank you Derek!
Thank you :) It took forever. This is literally the biggest tutorial TH-cam would allow me to upload. 128 GB!!!
@@derekbanas wow, pretty huge file
I had to cut part of it out. The max size is 128GB and this is 127.6GB
@@derekbanas ouch, that must've hurt. Great job anyways :)
Wonder why the designers didn't go with (x, y) for arrays, instead of (y, x)?
if that makes sense.
you finally updated it! CodeMaster Derek :D
I did my best :)
Wow, Thank you so much for the hard work and the great video. I will reference you to anyone who wants to learn JAVA fast and from a master. Cheers
Thank you very much :)
Hey Derek, would you like to create a series of videos about how to solve & approach competitive programmig & interview? Any language works, but for me personally would like it to be done in Java, C, or Python.
I'll do anything if I get enough requests :) Thanks for the request
Thanks, Derek. Really. You make learning fun. Always a pleasure.
Thank you for the nice compliment :)
Thanks sir am a Kenyan student and have learned a lot from you, I would appreciate if you do a tut for JavaFX, I read somewhere that it was removed from jdk10 and am now struggling to integrate it, please
I'll cover it in the next video
With all your skills I bet no companies can afford to hire you
Thanks for the compliment :) I haven't applied for a corporate job in a long time. I have no idea if anyone would hire me or not.
@@derekbanas You should seriously try and see your potential and where you fall in in the salary spectrum. But if you don't have a job, then what's your bread and butter?
momeme youtube???
58:29 some long ass sentence lasted 9 seconds lool
Thanks for this video! Was great to repeat and learn new stuff within short time.
I'm happy I could help :)
Thank you Derek... you help lot of people.
Thank you :) I do my best
Your really best teacher can you make applications examples more things please i always trying to learn from you aainy giving up i understand you well but i wanna see you makng web desktop application please
Thank you very much :) I have Android tutorials using Java. In my big Java tutorial I make applications th-cam.com/video/TBWX97e1E9g/w-d-xo.html
Thanks Derek,Great piece of work,thanks for your time & patience
Definitely some beers you deserve for master work
If you could give some guidance how code changes are done on production with some famous tools
it will be awesome
Just a request for a brilliant mind
Thank you very much :) More advanced Java tutorials are coming
Best tutorial a lot of practical things were there helped me a lot that Derek
Do you know why when i compile arraylist there is an error like "The method asList(int, int, int, int) is undefined for the type Arrays" in line List list = Arrays.asList(a);