Learn Java in 15 Minutes (seriously)

[@johnmuraski129]

For you JS and python folks out there - The world runs on Java, C++, C and C#, and most of the web still runs on PHP. Whether you like it or not. C++ was the first language I ever learned 20 years ago now, and is still my personal favorite.

[@DavidValle-ej8es]

I learned C++ as my first language as well, but Python is just better to use.

[@MAhmad-tg]

First two semesters were c++ and c# for me, and trust me, it wasn't a good thing. I had to deal with the jargons of boilerplates before even fathoming how to think as a programmer, and boy did it make me question my decision every single day. Luckily I picked python myself along the way and internalized the programming logics, and then shifted to those two again. Having understood programming logics easily with python, playing with new languages became a hobby of mine.

[@oboynitro]

well the modern world of AI runs on python and we re in the modern era so …

[@newstation795]

No. The most used languages in the industry are now JavaScript and Python. Just say there is a lot of legacy code written in those languages don’t stretch it.

[@breakoutgaffe4027]

​@@newstation795anecdotally, I work for a massive org 23k+ employees. The BE is 2/3 Java 1/3 C++. Almost every company in this space uses Java or C# on the back end....

[@bradleytaylor5612]

I code in many languages, started in C++, continued in Java, then onto javascript, php, python, kotlin. Just keep learning, everything has a place and the more you know the more effective you can be in many scenarios.

[@devlaunch-online]

True, language is just a tool

[@johnmuraski129]

Side note - I personally think that Java or C++ should be the first languages young programmers learn. It forces to learn a lot of things that are far too easy to take for granted.

[@christianbaer2897]

The first semester at university we had Haskell. In second semester we jumped into Java and in the technical course Assembly... After that we had Java and C. Let me tell you how much I appreciate GC, Lists and all the other comforts.

[@woosh_police4018]

in the graduate programming degree they gave us c# but for my friends doing the bachelor degree computer science they gave them python 😭

[@DwigthAstacio]

ok i love you for saying that, i will start to learn Java even though i made my living with nodejs

[@Qudbfjdbfjdj]

I think it's better to start with C.

[@p99chan99]

I disagree, C would be better to start with due to the lack of boilerplate that new programmers would have to try to understand.

[@FlintBits]

As a fortune 25 employee, JAVA is VERY MUCH USED AND IN DEMAND

[@brandonnorsworthy]

yeah biggest companies in the world use java

[@rigobertoitachijohnson]

every company uses Java at this point, and i hate it

[@CurrentlyObsessively]

As the guy Bill Gates used to cheat off of in school. Java is guud.

[@devlaunch-online]

Couldn't agree more, all the people saying Java is dead get their opinion from Twitter lol

[@ir0nsight280]

"self taught" script kiddies believe the industry runs on the newest coolest best bleeding edge tech while in reality its this: - does performance matter? c++ or c - is it a web frontend? JS or php - else: 90% java, 10% obsucre stuff like fortran and cobol exxagerated of course but probably not far off. dont know of any companies around me that dont fit that description. also 95% of time is spent in legacy systems, not creating new features

[@premiumdeveloper]

I used java to get into programming, it's my first programming language and it taught me oop and I easily learnt other languages

[@itsme378]

Thank you!! Please more of somewhat beginner content, I love how you explained it and also that you kept everything short as I feel that beginner courses are often too drawn out.

[@Bad4Good2]

This is clutch. About to start CS2 in Java for fall semester 🙌🏼

[@konnerharris9821]

Same here man. Data structures here I come lol. Best of luck this semester.

[@Bad4Good2]

@@konnerharris9821 you too brother, I’m sure you’ll crush it.

[@unknownbirdpro]

Same to me bro. Java is about to start in my next Semister

[@romievthedon]

Bro I took Advanced Java in the spring and the professor wanted us to build a single program throughout the semester using a couple of libraries he wrote himself. There were 200+ pages of documentation on the program we had to write and barely any docs on his own libraries. I suffered terribly. Take advantage of uml drafters, pseudo coding, and control flow diagraming. The faster you get in the habit, the more efficient and less time consuming your code will be.

[@paulopapo]

Im not sure if u can play contrer strike 2 with Java. Maybe rush mid and bang cave would be a better option for Mirage.

[@sh_mylaa]

hi, new java programmer here (new to programming), this was pretty much useful and straight forward. I'm doing a computer science course in university and struggled with understanding the basics however your explanations really helped me understand it. I will watch your OOP video next and hope to learn more. Thank you:)

[@conceptrat]

Just found your channel. Thanks for the useful Java short course. I used Java many years ago and haven't been back to it until now.. Point and click is great until you have a problem. At that 'point' understanding basic programming and how data types are dealt with is exceedingly important when it comes to debugging and finding those pesky little bugs.

[@jamesb2894]

The only reason I don't like Java was because I learned it as my first language back in 2002-2003. I passed my Intro to Comp Sci course but got burnt out learning methods and stuff to make web apps with old IDEs. Also I was bad at defining variables. I want to relearn it. Hearing Java methods.... gave me a vietnam flashback.

[@IosebiGames]

Stop writting stupid comments such as Java is dead and etc, Java is very great and nice programming lenguage. Im learning it for a long time and I like it. If its hard to you than do not hate Java for no reason.

[@zer0-ant]

Bro, they Don't know about all the frameworks that java has.

[@IosebiGames]

Hard programming lenguage does not mean its bad, Java is easy if you will try to learn becouse of you are interested than you will learn.

[@sutirk]

Do you know why java is dead? Because it's been the industry standard for like 20 years. So yeah, some versions of java are "dead" (although still being used in legacy systems on huge companies), but java itself is very much alive

[@devlaunch-online]

@@sutirk Some companies still use Java 8 (think banks and other slow moving industries)

[@IosebiGames]

​@@sutirk what are you talking about, even python was released earlier than Java. Java was released in 1995 but python released in 1991. But for some people think Java is still old. No Java is not old and it is not dead. It is very used, even your android is written using Java

[@RajKumar-oy9pt]

You made me feel confident about learning Java. Thanks a lot! As a JavaScript developer, I was afraid of Java concepts, but now I feel more relatable. I was previously intimidated by the numerous concepts that people mentioned.

[@michaelhollis5749]

Been programming and aware of the trade for about six years now, and going BACK to my first language, Java, it's changed quite a lot from when I was using it first starting out. In between then, I dabbled lightly in python and Ruby, but really went hard on C and C++. Learning those two, really decent at C, really helped me get a better grasp on Java. It is verbose, but I personally like that about it. As it doesn't leave you with *too* many questions. It's also pretty damned fast and you can really do pretty much anything with the language. I will say, though: had I not gotten a good grasp of C and went deeper into C++, Java would be much more complicated and confusing to me.

[@bogdanbilcan8335]

Java has methods but at the same time methods, functions and procedures are not all just different words describing same thing, method is like an encapsulation of the other 2 related to java coding, where function is a piece of code that takes input parameters and returns something and procedures could have nor not have inputs and performs some actions that don't return anything.

[@AriusRoaChamreun]

I don't have any problem with java, in fact I love it, but the only problem I have with it is the spring framework especially spring boot, since everything feels like magic, and I have to read the documentatiom everytime for each spring annotation.

[@User948Z7Z-w7n]

A lot feels like magic because it is designed so that you don't instantiate each objects manually but rather the frameworks does that. And you as an application developer only provide the definitions of each classes or interfaces. Does it make it somewhat clearer? Or am I missing something

[@devlaunch-online]

Wrongly used Spring is a hot mess in terms of dependancy handling, memory usage and performance. That's why I am not a big fan of it, but the alternative of writing everything from scratch is super costly.

[@_Nitrous_]

Java always been my favorite language.. I learned it at university, I find the OOP very much elegant and intuitive. Second favorite must be C# (use it at work for pretty much everything)

[@teddybear_lost]

I learned programming with Java and it's a very good language to start learning programming in and understand the basic concept of OOP and programming. However, I don't enjoy programming in Java and avoid it as much as possible. It's just not fun programming in, and you often need more complex code in Java than in other languages to do the same thing. I really enjoy Python and I'm a huge fan of Ruby and Ruby on Rails.

[@patrioticgrind]

Thank you for your video! There are a lot of great programmers, but few who can teach. Many of whom overlook the characteristics and attributes of the subject being taught. It's skipped a lot, but crucial to have a form of reference as you learn to code. It's like a firearms instructor teaching you to shoot a gun before learning where the muzzle is or how to load a magazine and so on. Again, great video!

[@_acky]

I like this one, very much. also I will be happy too if I see one for javascript

[@justindouglas3659]

been waiting so long for you to do a java course man have i waited!!

[@kopilkaiser8991]

Dude you taught JAVA so well 😊 I liked your tutorial video on JAVA. I was able to learn the fundamentals thanks to you. Moreover, you do a lot of fun which makes your content enjoyable and fun to watch 😂🤪

[@Jesse_Johnson]

Silly question, what make/model of keyboard is that? You're content is awesome btdubbs. Cheers

[@9m9ify]

more is needed...ever since the oracle wars I fell off , joyent and node sorted things out but oracle, java, linux and openjdk....

[@mdks57]

It doesn't have the most important thing, how to take input from the user.

[@p99chan99]

With the recent changes to Java, you don't need to do public static void anymore right?

[@fknight]

yea java 21 let's you do void main() but most prod environments use java 8. Also note that void main() doesn't deprecate public static void main() anymore, but instead just gives a shorthand alternative. So either is feasible.

[@juliotitosagastegui9453]

3:18 kinda funny, i am an ece student but i took my intro coding courses in the cs department. So by the time I arrived to comp arch on c/c++ (i had to take it in the ece dept) they called everything functions, I understood the meaning but it took me a sec

[@RegisBodnar]

1:11 in and all I can say about the usefulness of Java is, it's useful! Worst case scenario, learn Kotlin, but that still requires SOME Java to use the libraries! So learning Java is useful! (ALSO: Java can get you jobs in C#, etc, if the recruiter knows anything) (ALSO: Java is way better than JS, to work with!)

[@tahirawan7564]

Java is ❤. Even after years of working with swift I still recommend java to anyone who wants to learn advanced programming.

[@grim.reaper]

I want to know something, how do you unravel a large Java code base, especially when there’s encapsulation on encapsulation 😢 I don’t understand Java, the basics I get but when it comes to some serious abstraction I get lost. This hurts me because most of the time I often contribute to existing Java code base, which is vastly different than just the basics. When compared it to languages like Go, the slope of getting used to an existing code base is way steeper 😭 and writing tests is easier but I don’t understand the tests

[@Aeric80]

Java makes more sense than Javascript.

[@chrikke]

Idk man, i think Javascript makes a lot of sense, and is full of expected behaviour

[@The_Literate_Christian]

​@@chrikkeAh yes, 9999999999999999 == 10000000000000000

[@The_Literate_Christian]

​​@@chrikkeAh yes, 0.1+0.2==0.3 >>false

[@chrikke]

@@The_Literate_Christian Infinity == Infinity, probably

[@AbubakrSiddique-splenify]

​@@chrikke "full of expected behavior" I hope that's sarcasm

[@imakhlaqXD]

Java is a good language but i wish they could have done things differently. - no forcing OOP. - functions as first class members.(i hate functional interfaces) - not 10 different ways of doing same thing. - spring should be burned. - minimal syntax. - no verbosity BS. - idiomatic approch instead of Design patterns everywhere. - no blocking code every where.

[@VibronicCow]

Java is to JavaScript like car is to carpet lol

[@KarmicDecree]

Honest question, with the support C# is getting now from macrohard, which is much better to learn from scratch in this period of time? C# or Java?

[@Onyx-it8gk]

SDKMAN! is on point 👍👌🙌

[@djmetrokid]

Dude js devs gone hate Java or C++ should be the first languages young programmers learn, If you don't know memory management or how code works at a hardware level OR core principals and only use frameworks sorry that aint engineering so ignore them personally im A AI & DSP engineer my main languages are c++, rust for DSP and python for AI i love your videos what i said isnt a dig at you its a dig at all js devs who never learned the core principals

[@legion_prex3650]

are there decent libs for DSP out there? i am switching from C to Rust (in our company) and have to learn rust the next year. Really like the language and without C / c++ background, it would be too hard to learn, i guess. So, nothing for the Java/Python/JS - only folks out there. Rust Coding is so much more fun than C and the ecosystem (so far) is just great.

[@Ladle66]

Nice keyboard.

[@kostasv5899]

You my dear jentleman just earned a Subscribe and a notification Bell.

[@MrFlakgorilla]

I am focusing on c#, but I see more jobs about java than there are stars or planets in the visible universe. I can't wait to give Java and Spring a try when I get to my milestone.

[@ashtonkusmaul6907]

IK Just to realize C# is better

[@handsomejack1018]

Yep Sysadmin here and I have dealt with more Java than I thought I would I can't escape it

[@samuel7614]

You got me on the "(seriously)" part

[@higiniofuentes2551]

Thank you for this very useful video!

[@wcrb15]

The company I work for hires so many Java devs and I have been dreading having to get reacquainted with Java so that I can change teams internally. I think it's time.

[@olmzy5812]

thanks for video!

[@AD-wg8ik]

Java is great for learning structure. It's kind of like bowling with the guard rails.

[@sadamichael5633]

I love Java man! My very first language ❤️

[@conway7627]

Came to this video to get a start on Java development as the big company I work for is always needing a java dev....dead language has high demand I guess.

[@sugarod_]

We love the java content

[@friedrichmyers]

I don't get why people have this cult mentality over languages when they're coding in the literal shit. I think languages like C, C++ and Java are important for a programmer to understand how things work and how concepts evolve.

[@saagar2002]

dude isnt typescript very similar to java with generics and explicit return types and interfaces, i learned them in java. so java has good fundamentals and teaches you how to structure and think unlike js and python u have to go real deep to understand.

[@devlaunch-online]

Yes and no, each of those are used for different purposes, just because they share some concepts does not mean they solve the same problems

[@RazoBeckett.]

my favorite JS youtuber is back !

[@eldal1101]

Why don’t you use eclipse?

[@anonymousx7z173]

no way the guy who commented just compared tailwind to javascript........... a css framework to a programming language. using frameworks is fine and all if you want to save time and make something great without wasting so much time and make something that looks good but comparing javascript to tailwind is like comparing a brick to a house and whats even worse confusing java with javascript is funny i mean java is called java and programmers usually dont call javascript java they call it JS soon my guy will confuse C and C Sharp but the 2 meanwhile java and javascript are tottally different i feel like java and csharp have so much in common i somethimes feel like microsoft just coppied the homework from oracle and changed it a little

[@indecisive.m]

Is there a difference like let and const in Java? Or are all variables mutable?

[@bo_leang]

Does Java have to use OOP architecture? is it possible to write as Function base?

[@cryofwill1416]

Yes it can be functional 🤗

[@dragonxtamer5964]

Well I kinda wish I learned to program this way. All my old programs are hard coded.

[@MauriceWilliams]

It hurts my head learning how to code. I want to be a A.I Engineer someday, but I can't even study for a hour straight without my head feeling like it's about to explode. Please pray for me Sir.

[@Musica-zt6ov]

Now you just need to go in more depth on polymorphism and generics

[@greymind0072]

So much informative

[@peterjansen4826]

Hello World definitely is easier in Rust and C than in Java. I still don't understand the difference between methods and functions, even after reading at least 10 different explanations. It seems rather artificial (same thing in a different environment, OOP vs regular) to me to make this difference but I might be overlooking something.

[@devlaunch-online]

Methods are something you create in your classes. They take input and by executing some code they return some output. As for functions they are more used in context of functional interfaces.

[@peterjansen4826]

@@devlaunch-online So it is just the context in which it is used but functionally it works the same? Both methods and functions use 1 input or more inputs to get 1 output.

[@agentofenhanced2428]

it will be easier to understand once you read some code, when i started learning java i couldnt grasp a lot of concepts untill i started using them

[@АлександрШмаков-х3я]

"I really need to get back coding on arch linux, don't I ... btw" 🤣🤣🤣

[@technovikingnik]

I know C, python, ts/js, started learning C# for unity. When I saw java code in this video I was like.. Maybe im learning Java

[@giorgidalaqishvili9949]

Have you ever tried C#?

[@qmac9966]

That KZbin short was brilliant

[@LinuxLuminaries121]

Dead my ........ people say java dead php dead 😂 both languages are in another level they will never understand

[@tengahhidup]

Seems like that guy is a freshman college cs major, and just got assigned with some frontend tailwind assignment

[@dibyojyotibhattacherjee897]

Well I plan to use java for AI/ML applications so I am a bit confused is it right or not...

[@devlaunch-online]

Sorry but no, Java sucks for those usages.

[@JC-jz6rx]

Hahahaha I remember that comment. Goated comment. Made my day

[@werghiaziz2943]

its time for scala

[@ikermann00]

I like this man

[@kvelez]

Cool, thanks.

[@MauriceWilliams]

Man, don't let that negativity get to you, my brother.

[@OZTutoh]

I've been absolutely hating my learning experience with Java so far. Command Line executions not working on Hello World tutorials due to class exceptions. Absolutely no-one on StackOverflow agreeing on how to solve those class exceptions. Content creators deleting my comments asking how to solve those class exceptions. Literally asking Google Gemini to write a Hello World java script and it also gets a class exception. As a newcomer, I think it deserves some paying out.

[@dalulu418]

The reason I'm here is actually because I want to become better at python and javascript...

[@tonnytrumpet734]

As corporate Java developer for 4 years and being considered yung buck in the game (fresh 25y.o) so probably I shouldnt learn this "ancient language withou future" (wait until you self taught python copywriters learn about kotlin, scala and clojure). I got equally triggered after that comment in first minute as you good sir.

[@shareknowledge7766]

good job bro. 🥰

[@dropeli]

Dude, it's ok, they're just salt mining lol But thanks for the quick course of Java 😊

[@themattster1989]

lol the intro to this was hilarious.

[@FlyingPandaDev]

Sorry, but I've always loved Java. It's the first programming language I was taught. For OOP paradigm haters: My class names are not that long.

[@filmaker256]

THier easy to learn I hope

[@mrs8768]

I came here to declare my absolute spite for Java. I kind of respect kotlin tho 😭.

[@Hollowendz]

A lot of non programmers in here with heavy opinions .. I can tell who actually works in the industry by the comments lol

[@sadiulhakim7814]

I am a Java Guy. I feel bad for frontend guys as they do not have any other choice. Ton's languages are created but nobody creates a frontend language!

[@grimonce]

Learn D instead. You get C++ and Java in one... and embedded if you want to without Java Card tech.

[@abdelbakiberkati]

I actually know java, im here to assist you with the spite

[@webdevgaur]

Laughs in public static void main (String[] args) 😂

[@The_Only_StixMan]

My frirsr lamguage was C followed by Java I learnt things these python kids only dream about

[@V6HAVOC]

Why do people hate Phyton so much lol? Are yall mad Phyton is easier or sum shit?

[@higiniofuentes2551]

In the beginning Java has only one "constructor", now we have: Oracle, IBM, etc Which one is more general? About versions, which one is better: 8 or the last current one? Thank you!

[@devlaunch-online]

1. The one used in your company 2. Most companies are at 11 or 17, but realistically speaking the changes between 9 and 23 are almost invisible

[@diabeticnomad]

Is this a tutorial for Java or OOP? 💜🤣

[@stratejic1020]

That is one hell of a superiority complex. Dude wants to see him so important and relevant so bad that his only option is to attempt to destroy or bring down the relevance of other things and the fact that they have relevancy for him to break down to begin with is what makes that so ironic.

[@anon_y_mousse]

I think that Java was ahead of its time with the idea of compiling to a generic bytecode and running in a VM, but the implementation was still done wrong. The language itself is far too verbose, it's basically a less utile C++, and truthfully, computers at the time weren't capable of running it adequately. Now it's perfectly fine, but GC languages are in general a bad thing. I'd love to see someone come up with a non-GC language that compiles to a generic bytecode and has a "VM" that generates a native binary on the first-run. Sort of like C#, but not a garbage clone of Java that's worse than what it cloned. Languages with "unsafe" keywords are beyond stupid. Programming is unsafe, and if you don't know what you're doing, you probably shouldn't be programming. I expect you'll disagree with this, but you have to admit that there are far too many programmers that really should be in a different field these days. Far too many people have gotten into programming because they saw people making a lot of money and they wanted in on it, but they have no desire to be good at it.

[@SashikaSandeepa]

Time to update resume

[@modtanjiroo]

@thereal-ghost ain't no way you're still existing bro

[@unfalldead]

method is not only function within a class ?

[@fknight]

All "functions" in Java are defined within a class, therefore they're called methods. No standalone functions in Java. Or in other words, no functions in Java. Just methods.

[@unfalldead]

@@fknight thanks I dont say it clearly but I were talking in general. But for Java yes it's all methods

[@adambickford8720]

@@fknight I'd be careful there, as its not that clear these days: Function myUpper = s -> s.toUpperCase(); This is indeed a function that is not bound to an object and can be passed around as a value. Yes, that `Function` *is* an object, but in practice it's used like a function in other languages thanks to java SAM support.

[@fknight]

​@@adambickford8720 yea that's a good point. Those pesky lambda expressions and functional interfaces do blur the lines a bit with the functional-style code.

[@Strange_197]

@@fknightlamba expressions can be seen as a function but at the same time it is still a class that implements runnable with the method called run() 😂😂

[@AsifAhammad-uy1cy]

Java,jack ant vestigual ant,ant is vestugual

[@Alexandru9er]

Man, I love Java. Leave my coffee beans alone, hat3rs!

[@mb1-9999]

Wait until he discovers other JVM lang like Kotlin, Scala or Groovy that are better then Java

[@devlaunch-online]

Good luck securing a job in those though

[@richardmeyer418]

Java is dead. Wait a moment, I've heard the "XXX is dead before" - mainly people have been saying "COBOL is dead since at least the 1980s" and "Mainframe is dead" for at least that long. Both of those are still going strong, thay aren't exactly the way they were in the 1970s, they've adapted and they're still the backbone of the Fortune 1000 companies, but carry on.

[@chrikke]

Every languages dies everyday. With javascript, it is the same with frameworks

[@mcflanky8340]

This video could not have come out at a better time because I need to leanr java for my exam soon

[@jameshearttech]

Fwiw, we have a couple dozen backends and they are all Java. Just saying.