Java in 100 Seconds
ฝัง
- เผยแพร่เมื่อ 2 พ.ย. 2021
- Java is a programming language famous for its ability to compile to platform-independent bytecode. It powers enterprise web apps, big data pipelines, and android mobile apps.
#java #programming #100SecondsOfCode
🔗 Resources
Java Website java.com
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🔖 Topics Covered
- How Java works
- Java basics
- History of Java
- Java vs C
- How to compile Java
- Overview of JVM, JRE, & JDK - วิทยาศาสตร์และเทคโนโลยี
"public static void main" These words together are legendary.
how many times have we written those out haha
I'm not even a Java developer and whenever I read these, it immediately reminds of of Java, it's wild
@@sjn_ i mean it's exclusive to Java
@@HandledToaster2 Yes I know but if you are not a Java developer, one could not be 100% surer because the words public static void exist in C# as well. But my point of commenting this was that these words always remind me of Java even if they exist in other languages.
@@sjn_ i get the comment, I'm just saying the reason why it reminds you of Java is that this specific line of code is essential and exclusive to Java (and C#)* You wouldn't see this line in any other language
Ok ladies and gentlemen, I am ready to make Minecraft 2
good luck 👍🏻
Then I am going to make minecraft 2.0 with C++ (not bedrock) and beat you on performance :3
bruh. why are you literally in every comment section
verified comment
You literally went from listening to North Korean Song to this video
Following the "logical sequence", the next in line is Kotlin in 100 seconds
@Ivan Melnikov Unit is nothing compared to all that Kotlin has to offer. But indeed, Unit is cool, way better than void.
You mean Scala or clojure right?
Ladies and gents, he liked the comment, so this is canon.
Or Groovy maybe
Kotlin is love, Kotlin is life.
Java is absolutely incredible. I have chosen it as my first programming language and never got past making loops.
I love it.
The Iterator class can get a tad confusing though for loops. I don't know, maybe I haven't seen something similar in other languages.
I never went past making hello world in java. No idea why I decided on it as my first PL
Try c++ and you'll never get past pointers and address arithmetic lol
@@dimitridoroshko i made my own virtual cpu (byte code interpreter) in c++. Before that i couldn't even read a file. Now i made a simple custom embeddable scripting language. Without help from ide explaining what particular function does it is very hard to program.
Same!
I have been using java for ages, but still watched this video in anticipation that this brilliant soul would say something new in 100 seconds that I would have missed in years.
What did you find new?
@@souravsuman636 Its first demonstration was star7 PDA.
@@akshaymattoo You have a kashmiri surname
@@edwardspencer9397 yes i am a kashmiri.
@Edward Spencer no such thing. He's indian.
"Congratulations, you just built an enterprise grade application"
I laughed too hard at this joke.
Cannot emphasise enough to say hi to your mom.
i died
He's right. Java is kinda stupid proof.
Hi Mom!
keep it up with the 100 seconds of code series! everyone is liking it.
I dont. its not beginner friendly
@@autobot021 I disagree with this comment but I do appreciate that saying 'everyone is liking it' was bound to be incorrect anyway since humans don't think unanimously about anything lol
@@autobot021 You're not a target audience then. The series is not designed to teach, but only to show. Knowing what exist can help to do the right first steps in the decision process of a project.
@@_modiX Don't have to be condescending.
@@autobot021 I didn't mean to. All I say is objectively speaking you're not the target audience, that's it. I'm not intending to speak down on you. You are free to dislike this format and I don't think you are a bad person for doing so. I just wonder, why bother watching this format? It's called whatever in 100 seconds. Nobody should expect in depth content, since it's impossible given the short timeframe. There are good in depth channels out there, but barely good videos in this format. I'm a fan of preserving uniqueness.
Correction: write once, debug everywhere.
That's what it truly means for developers. ;)
And that language is very easy to debug. It will always tell what's wrong with your code.
@@khodis2002 that's what I like about strongly typed and opiniotaded languages. You're just not allowed to make a mistake, there's no type errors, you can't even compile if a type is wrong.
I consider Java my native programming language and I've worked with it for years; thus I can wholeheartedly agree and confirm this 😂 .
@@HandledToaster2 NullPointerException
@@emir9348 that's different, I'm saying you'll never get a mistake of passing the wrong object. Null is when you have no object at all
A useful tip
Since Java 17, you don't need to compile the class files anymore
Just pass them directly to JVM, and it will take care of the compilation for you
Wait what
Wait what
but why would you want to
Whaaaaat
I am switching to v17
Yea I did that accidentally last week lol..and as a noob I was left wondering why the fuck was I even taught to compile in the first place😂
1:15 "The class is required to have a main method" - well, it may create some misconceptions, because not _every_ class is required to have a main method.
It could be rephrased to "Every program is required to have a main method in one of its classes".
This will probably be the only liked Java video in my life.
Java actually my preferred language to understand OOP concept
Dart is my favorite, but given it doesn't have all the features of a more mature language, then I would go with Kotlin, Swift, or C#
For me it was a disaster; going C->C++ was the way
@@OzzyTheGiant what Features does it Lack?
@@VVV.12345 I don't get how Java is so difficult? It's very simple language compared to C++ and C# as it doesn't have as many modern features like runtime generics, since it tries to be backwards compatible as much as possible
@@02orochi It lacks operator overloading, which would cut down a lot of the verbosity. And it would do better with C# style getters and setters, imo.
The required like count makes me think that he might not wants to do a Full Java tutorial :D
Thought the same thing, lol.
I'll tap like twice to help! Or maybe even FOUR times!
Can't blame him, learning is easier than teaching
he's just shooting for the stars.. It makes you wanna like the video though
Java, the beginning of everything for a lot of us
true =)
Learned this in school and then never learned it again. Looks very powerful. Amazing video as always.
Never expected to see you in fireship's video
My first programming language, absolutely love it.
It was mine's too, but I hate it
Funny, isn't it?
It's a headache though...
@@gabrielcastilho4168 if u are in big company its really fun to learn. if its ur app or startup company i cant imagine what will go on.
@@gabrielcastilho4168 Why do you hate it?
That's what she said.
Now that you've done Java, you set the ground for Kotlin in 100 seconds!
Kotlin is a JVM language that runs in the Java ecosystem but much more modern and safe (mostly by null-safety).
It's similar to Swift in syntax and can be used to develop mobile apps as well (Android's official language is Kotlin, Kotlin with Native compilation target can target iOS too).
Kotlin is ❤️
You just done the script, now he only have to record the syntax and thats it
you made first 20 sec script of next kotlin video...
Kotlin can also target JavaScript and native environments. Support for WebAssembly is on its way.
I just love the expressive syntax and the support for more functional programming constructs.
@@vaisakhkm783 hehehe
Literally searched "Java in 100 Seconds fireship" yesterday, you keep making the perfect content!
Same lmao
Great video! There is so much more in the modern java specially in the latest JDK 17 LTS and such a big ecosystem(and much more to come). Hope you explore in the near future!
At 38 years of age I decided to transition to being a software developer and I love this video and this series. So keep it up! TBH, this 100 second clip took me over an hour to decipher. I ask the most basic of questions, like what does a "class" mean, what do the curvy braces mean, why are there no clocks in my room? Keep up the great work. The seasoning of humour is a much appreciated touch that makes it easier to digest.
Are u Armenian??
Do kotlin in 100 seconds next pleasseee
Java! First programming language I learned.
Great short as always. Please do a full tutorial on Java. Would love that.
literally the best programming series on the youtube
Lets pump the like button and so our boi goes out of his comfort zone (JS land) 😂👌🏾
Great video, got my second Java job today. Looking forward to more!
Tensorflow in 100 seconds, next please!
You're a true gem for the development community, no doubt!
1 hour since the release of the video and it's in TH-cam's recommendations. Great job !!
Cool. I'm taking a Java course right now and this toom me back to the beginning when I thought everything was fun. Anyways, I'm super looking forward to the full tutorial!
Please make a video about the research you do before making the actual video. You always publish the things we need 💛
This is literally what I asked for like a few days ago! Thank you! 😃
- what words were written the most in the world?
- "i love you"?
- No, it's "publis static void main(String args...){}"
Love you fireship, always wanted a 'Java in 100 seconds' but was afraid to mention cuz it seemed like the community here consists of more JS fans😅
Started in python before jumping to Java. Always been one of my favorite languages and always will be. Now I focus on JS for it's versatility on the web
Yeah I started Java then went to JS for web dev as well.
Thanks for adding labels to that utilization chart!
Bro, You are literally my hero. You are exploring everything. Let's connect somewhere, I wanna help you in exploring more technologies.
The fireship 100 seconds background music sounds like a really cracked remix of skype call sound 😂
for me it reminds me of the OST from the game Taur
Thanks for the video, added Java to my resume
These videos are really cool if you want to decide on selecting a new language
100 seconds - that's very well condensed! :)
meanwhile KOTLIN: let me replace you
Haha not possible, atleast not for the next 50 years
We'll have to wait for the boomers in management to die to replace it forever, but that time will surely come
It'd be cool if you compared making an app using a traditional Monolithic framework (like Rails + Hotwire) vs the now common Frontend app paired with a backend API.
I ask because there seems to be a bit of a resurgence in monolithic frameworks or combining "old school" ways with modern tech
Hi! I love the "* in 100 Seconds" series and would like to suggest "Lisp in 100 Seconds" and "Kotlin in 100 Seconds" since i couldn't find anything on these languages in your videos and would realy love to see what you would value most in these languages!
Wow, this day has come. The video about Java :) . It would be great if you could post more videos about backend\devops technologies.
I dare you to make Assembly in 100 seconds.
depends based on architecture
@@HanifHearted What feature set?
machine code in 100 seconds
Great video! C# in 100 seconds next perhaps?
Yay he did one!
C# is for posers.
Great videos as always. What is the extension you use to the color scheme??
We need the Java Tutorial!! I think that for your channel's thematic (web) it would be nice a Spring Java tutorial (with prime faces)
I think he forgot that you don't need to compile(javac) anymore.
Since the latest version of the JDK, the "java" command auto-compiles + runs it for you.
well thats unexpected but i kid you not i was thinking: i dont think i would see fireship making a video about java
plz do C# next
I can do it in 3 seconds for you... C# is what you write when you get sued out of using what you want to.
Was waiting for this for so long. Waiting for more on java, though
Thank you, all of your videos are really awesome and well explained!
With recent releases, you should also be able to run a java file directly.
I am happy to see Java implementing modern language features from time to time.
I'd love to see a sequel to this with "Kotlin in 100 Seconds" which is a modern and safe (mostly by null-safety) language that also runs in a JVM.
There are additional JVM languages like Groovy and Scala. And the best thing is, that they interoperate quite well in a single project.
My first programming language. I’m absolutely in love with Java
It's not just a language, it's an ECOSYSTEM :)
Thanks! I have been waiting weeks for this.
Best channel. Informative and concise.
There needs to be more excitement in the community about Java. Its a shame that there isnt anything new and exciting in Java because the world needs more Java devs!
You mean Kotlin dev?
@@nilanjanmukhopadhyay8369 He means either Kotlin, Scala or Groovy dev, for sure.
Yooo, Java got a 100 seconds video! Since that's the language I started my programming journey with, it has a special place in my heart.
Thanks for the good stuff, Fireship, I'll be waiting for a full tutorial 😊 .
java is nice
@@artebotastic8846 Are you held as a hostage?
Great vídeo!. I'd like to see C# next :)
Just to be clear File name and Class be same is only required if the class is public hence there can only be one public class per file. Great content.
Is anyone else learning Java, but while learning you come watch this video? Then everytime you get further in progress you come to this video to see how much more you’ve learned?❤️
There are literally 20 minute long tutorials that I've learned less from holy shit. Thank you Fireship, I'll one day owe my job to you.
Let's go
Good job guys on 10k+ likes
I was always hoping a java course from him.
Im thankful my trainer chose java as my first lang. And now its quite easier ro migrate on other langs.
Scala (or other JVM languages )would also be great
Yeah a somewhat longer video on the entire JVM would actually be really cool. Explaining the differences and use cases each language has.
@@master0fnone Full focused video on JVM sounds nice
Clojure! Clojure! Clojure!
@@coder4life I'd watch the hell out of that, the JVM is awesome
could you please do a c# video ?
Oh yeh that would be helpful
Nice detail starting the bytecode on the .class file picture with CA FE BA BE, which is actually how it is IRL!
Ah finally. Was waiting for your Java in 100 second
Of all the programming languages I’ve used, I find javas syntax to the most readable and easily understandable
I find it's type system is really ugly. C# cleaned that up a lot
I love how he makes java sound so short and simple 😂😂
Cool! Have you considered making a C# in 100 seconds video?
Finally my language comes.. Was waiting for this..
You set the bar pretty high to ensure you don't have to do a full tutorial on java 😂
Beyond one hundred seconds on Hadoop would be interesting though
You could do this with C# as well. Almost the exact same thing. Maybe there's more and more syntactic sugar added to C# than java, but in general, very similar.
Enjoy having your C# code run on non Microsoft Systems. I think its getting better but yeah.
@@draftingish4833 C# is fully and officially crossplatform (and open-source) since 2016. There is absolutely no problem with running it on other OSes:
1) "dotnet new console"
2) write your code
2) "dotnet run"
4) enjoy
My first encounter with programming was C#, then we did a bit of Pascal in high school (ew), then Python, JS, PHP, C++ in college.
I've been working as a Java developer for the past 3 years, and even though I hate some things about the ecosystem (fuck Hibernate, seriously), I still love it.
It's just very simple. Verbose, true, but that's the price you pay for readable, self-documenting code (if written well of course) with a good type system.
It's pretty easy to maintain, there are tons of resources, many options for libraries and frameworks.
Kotlin is even better, as it fixes a lot of issues in Java - for example null safety, also kinda has pattern matching using "when". Very nice.
I would definitely recommend it as both a first and a primary language.
finally! you create about java! (it’s my first language to learn)
Would love to see Java compared to .Net 6. Personally, I feel like .Net 6 stomps Java in a lot of ways.
.Net 6 which is never version with improved BCL
@@GamerAlphaInd i guess you mean newer
@@GamerAlphaInd Bcl?
Correct me if I'm wrong but BCL means "Base Class Library". Starting in .Net Core Microsoft rewrote .Net from the ground up.
I said .Net 5 but really meant .Net 6
.NET 6 can't beat the JVM when it comes to performance. Java though, is behind C# in terms of syntax and low level control
Java devs: old is gold
Rust creaters: we are 4 parallel universes ahead you
Is java and rust comparable?
@@vaisakhkm783 nah rust is only compiled not parsed (at least from what i know)
@@idkidk9204 the hell is "only compiled not parsed" supposed to mean?
@@theshermantanker7043 What he's saying is kinda broken but you should get what he means:
Java is a compiler and interpreter Language
Rust is a compiler only language
How about you implement a concurrent hashmap in rust and let me know you had a good time. You may be cool in current world but whatever values your parents and grandparents gathered over the years can't be overlooked. because of C we were able to write operating systems and all and came to develop rust and it's compilers. Without any OG programming language supporting current technology it would have been impossible to even develop something like rust.
The only video that can show JAVA as something cool! Create 40+ lessons JAVA course in this style and you get $100K easy, simply because currently everything is boring and gray at a JAVA courses landscape.
Java Language helped me a lot in my Wireless ECG signal Final Year Project via Bluetooth module, Arduino & AD8232 ECG Sensor !
If we're doing JVM languages, Clojure next? 🤔
hahahahahaha I just wish there were enough trolls out there to get you create that tutorial :P
In all seriousness, I have a fond memory of Java, it taught me almost everything I needed regarding typed languages without the hassle of dealing with pointers.
i love that javas site is still straight out of 2009
He always prints "hi mom" which is really neat. Respect to the mother (and mothers in general) who raised this person.
0:16 SUS!
get help
Java in 100 seconds? You've gotta let it steep longer to get the flavor 😎
that sweet sweet dookie Javaa flavor (I did Java for 6 years I'm allowed to be a hater)
would you use java to run local commands instead of say node or bash files?
Seriously, how do you not have 1,000,000 subs!? Great content please keep it up!
Almost 2 mil now :)
Ok then, .NET / .NET Core / .NET Standard / .NET Framework / Mono in 100 seconds?
The naming alone is material for an 2 hour video.
C# is superior to Java. Just had to say it.
@Vishal Adhikari why?
.NET - the name alone gives me nightmares
Asp.net core
"Congratz you built minecraft!"
'public static void main' that sums up Java really good. You need to write a lot of boilerplate code to get anything done, or at least that's how I remember it, I have not written a line of Java since Python 2.5 got released.
really doesn’t matter how kotlin-ified modern java gets. the world has already started detoxing from java
The video is about Java so some people mentions C#. On that note, you can make "in 100 seconds" of some the most confusing but essential things in C# like Entity Framework and Identity Server if you decide to make "C# in 100 seconds".
Or you can do "in 100 seconds" of something like Best Practices or Software Architecture since that's what made me proficient in C# and Angular and it applies to your language of choice.
What concepts did you learn for software architecture? I'm still learning GoF design patterns but I've also learned about refactoring techniques from the Martin Fowler + Kent Beck Refactoring book, which helped me a lot to understand what clean code looks like and how to refactor in general. I also learned design principles like GRASP, SOLID, YAGNI, Rule of Three + Reused Abstraction Principle, CQS, Law of Demeter, etc. Any resources you used that helped you a lot?
@@thatoneuser8600 There's Onion Architecture, Ports and Adaptors, Microservices, Pipes and Filters, Strangler pattern, etc. I learned most of them on the job to optimize the system I'm assigned to. I don't read much books since I do "On-demand learning" meaning, I only look for what's needed to solve an issue, I've learned that its more practical in my case.
1:14 Eh, almost.. Any public class in a file should match the filename..
Guess we will never get the full java tutorial
This man will change your perspective towards everything
every subscriber of this channel should have heard the term "JAVA" once in his lifetime.
At 1:50 String brew() returns an empty char with single quotes (return '') instead of double quotes for an empty String (return "").
But I have to say that this video is just a beast at explaining Java in 2.5 minutes.
And the same line also misses a semicolon :)
What’s the value of pointing this out instead of just saying this video was beast?
@@user-cd6vy2jg6f Where's the loss when saying both?
@@seerlite5256 i would say we all know how much effort this channel puts into its videos and everyone makes a mistake sometimes. It draws attention to a meaningless small facet of the video which distracts / takes away from the video as a whole
Just my opinion though.
I was a Java developer but due to demand I had to move to javascript...from past 6 years didn't wrote a single line of Java 😩😩
Which JS framework/library are you using? Let me guess: Angular.
In what language is ur backend then
100k+, let's go! 😀 also, same deal for C#?
Some wise words: "no pain no gain, public static void main" -Sun Tzu, The Art of Code