Anon tries programming in Java

You may find JML interesting. https://www.openjml.org/

JVM is like a gas. It expands to fit it's container, however large that is.

Python:

print("Hello world!")

This is getting a little better nowadays.

> cat Hello.java
void main() {
    System.out.println("Hello, World!");
}
> java --enable-preview Hello.java
Hello, World!

Things to notice:

1. No compilation step.
2. No class declaration.
3. Main method is not public static
4. No String[] args.

This still uses preview features though. However, like you demonstrated already, compilation is no longer a required step for simplistic programs like this.

Welcome to java, we have a couple unconventional ways of doing things, but overall I'm like every other mainstream oo language.

People: AHH! Scary!

Welcome to python. your knowledge of me wont help you elsewhere as my syntax is purposefully obtuse and unique. Forget about semicolons, one missed space and your code is as worthless as you after learning this language.

People: Hello based department

I got the impression they skipped the hello world cause it was too easy and they wanted to get right to writing their app, so they moved on to more advanced stuff without having a real grasp of the basics

He types REALLY slow.

Java is amazing and I love it, and I agree that this is not really a good list of problems. (Not that I expect green texts to be well thought out, rational, real, fair, or anything other than hyperbolic rants lol.) There are good reasons to critique it and the ways people use it, but this isn't it.

Particularly funny is the one about race conditions. That's something you'd have to deal with in any sort of multi threaded environment.

As embedded dev, the stack trace alone scares me. It would be funny to watch the Java runtime blow the 8 frame deep stack on a PIC18 tho

Honestly, I prefer C to Java, it's incredibly simple without all the BS that Java throws at you:

• interfaces - compiler will fail if you provide the wrong types; w/ Java, figuring out what types to pass is an effort unto itself
• functions - everything needs to be in a class; even callback functions are wrapped in a class (behind the scenes if you use modern Java); in C, you just pass a function
• performance - Java uses a stop the world GC, which can cause issues if you have enough data churn; in C, you decide when/if you want to allocate or free memory, no surprises

There are certainly some bad parts, but all in all, when I run into an issue in C, I know it's my fault, whereas in Java, there are a million reasons why my assumptions could be considered valid, and I have to dig around the docs to find that one sentence that tells me where I went wrong w/ the stuff I chose.

That said, I prefer Rust to both because:

• get fancy stack traces like I do in Java (I really miss stack traces in C)
• compiler catches most of my stupid mistakes, Java will just throw exceptions
• still no stupid interface hell, I just satisfy a specific trait and we're good
• generally pretty concise for what it is; I can rarely point to a piece of syntax and say it's unnecessary

I use:

• Python - scripting and small projects
• Rust - serious projects or things that need to be fast
• Go - relatively simple IO-heavy projects that need to be pretty fast
• C - embedded stuff where I don't want to mess w/ the Rust toolchain

Java has been absent from my toolbox for well over a decade, and I actively avoid it to this day because it causes me to break out in hives.

Sorry, you had a small error in the spacings of your post; Therefore I cannot parse a thing you're saying. Didn't mean to scare you with a semicolon either. It's just a tool in language's to end a clause and begin a related, independent clause. That could be useful somewhere...

Rust over there like

Hey kid, tired of putting off your problems?

So will so many better languages, more so actually.

So will pretty much anything except JS.

An text file with a <script> block and nothing else, containing a console log, is all you need. You already have all the boilerplate to run it in any computer. No extra dependencies, no installing anything. Literally just a notes editor app. This is a valid HTML file:

<script>
console.log("Hello World")
</script>

I love javascript. Shit. Just. Works.

Even if you, the programmer, are a complete fucking moron, by god javascript will try to make your program run as long as possible.

I don’t particularly like Java, but I use it because it pays the bills. Similarly, I use C++ (which I prefer) when my work requires it.

I mean, anon is not arguing against that. They're saying the language is shit regardless of how much it is used in business. I don't think they are entirely wrong.

Tell us more ancient one, your heroic tale of "giving up against the endless weight of capitalism" is fascinating.

I'm sure that's Fireship, without clicking the link.

My experience with Java over the last 2 decades or so. Shame Android gave it extra life, thankfully Kotlin exists now.

We bow to your wisdom, wise gatekeeper

I always loved that Java has a NullPointerException but doesn't have the concept of pointers in the language (only references).

After close to two decades of programming, C# is still the best language I've used. While some of the newer features seem a bit weird, I'd say it's one of the few languages that has never got in the way and has just let me write code that made sense. Even with all the improvements Java has made over the years it's still nowhere near as good as what C# was like maybe 15 years ago.

The same goes for everyone's other "fav" language, Python. Ruby has been a better beginner scripting language than Python for many years, and while Rails is definitely a ghetto, as a language Ruby is great at teaching great programming fundamentals.

C# is pretty good generally - I know it far better than any other and it pays my bills! - but it certainly has its weak points. Particularly around the newer features, a lot of them feel really rushed and just kind of shitty.

The one I hate the most is the whole “nullable” pattern. It’s a total mess. Having to mark up files as #nullable enable, having to mark methods with a bunch of attributes, and the way that it works differently if it’s a value type or a reference type, it’s just so half-baked.

If you spend some time with a more modern language like Rust or Swift then you’ll quickly start to notice C#’s weaknesses.

C# has had string interpolation for, what - nearly a decade, now? It arrived with C# v6, which was released in 2015.

Meanwhile Java just pulled their implementation out of the latest beta earlier this year because they couldn’t get it to work right.

Don’t know about you, but I think that Java is largely resting on its laurels as of late. That the only real reason to go for it is it’s third-party library system, and not much more.

C# is nicer Java, but I think it's still fundamentally a poor language.

Rust master race:

fn main() {
    println!("Hello world!");
}

Unfortunately, the time you save typing you'll spend compiling, so there's that...

I'm not a Java dev, but I know enough of it to fix simple bugs in the backends I work with. My main issue with it is that 99% of the code doesn't seem to do anything. The clear, obvious place that looks like it handles the feature you're looking for? None of it does anything! It just instantiates another class from God knows where to actually do the work. I swear I spend most of my time in Java projects just looking for the damn implementation in a sea of AbstractSingletonFactoryBean shit.

I'm sorry just as a matter of policy I'm going to have to downvote you for saying you like java. Nothing personal.

I think some things that were novel when java came out are such old hat at this point the 1990s benefits just aren't benefits anymore. Run anywhere? I'm in a html app right now. As is my IDE and my chat app. Strong interfaces and sane types are only in comparison to the bizarroland of c++ which visibly always seems to basically be word vomit. JIT compilation is in python which is both easier to use and has way better tooling and libraries...making python today run in the "fast enough" category that java was kinda in. I've literally never seen a usable java UI tho.

Really want to go to La Scala one day but I looked it up and the tickets are like 500 euros. An eclipse is much cheaper

Known for : the Java programming language, internet sex crime and the fantasy defense.

Are you saying OP is...

It's written pedo. I don't know where the "paedo" thing came from.

Honestly I would consider that a bit weird. At the very least, old-fashioned. If you like Java, it makes me think you haven't tried a better more modern language to compare it with.

C# is nearly the same, but much, much better.

• It doesn't (usually) come with the Java culture 8 layers of abstraction. This isn't in the Java language. This isn't in OO. Yet nearly every Java programmer makes things way more complicated than it needs to be.
• It's a prettier language. Similar syntax with less bullshit.
• It's open source
• It's still multiplatform. Modern dotnet / C# works on anything.
• Both Visual Studio and Visual Studio code are great IDEs that blow Eclipse out of the water
• It's one of the most common business languages.
• It's going to be supported forever.

If I could restrict the world of programming to two languages, it'd be C# and Rust. C# for most things and Rust for a lower level language.

I thought I like Java until I tried Kotlin. It's everything I liked about Java, but with everything wrong with it fixed.

I like how straight-forward the syntax is. And it also seems orderly to have everything be a class. There's a system to it.

I'm using C++ for a project now and I like it in a similar way, but there's more freedom (everything doesn't HAVE to be a class). So with C++ I'll never go back to Java (unless it's for a job).

No. Every language has its haters. There's a reason Java is so widely used. If you like it, keep at it.

I am a certified Java hater, but you're allowed to like it. If simple and objected oriented is what you want, I can see the attraction, and it has a good and mature ecosystem.

No, Java has lots of merits. For example, once you know layout managers, you can have a resizable GUI app in no time. It's the exact opposite of arranging things pixel by pixel. You just define "I want a grid of these buttons south and a big text field in the center" and Java will do the rest. I whip up apps like this for the silliest things, like noting which dungeon has what rotating boss this week in a game, so it's more convinient than noting it in a text file.

I've worked on a corporate project with multiple Java services, anon isn't really exaggerating. Java can be a hell scape at times

I'm pretty sure Java doesn't have pointers, so writing a hello world application isn't gonna fuck up nearly that hard.

The one thing he forgot though is that your source file is probably in the folder

com/companyname/net/classes/factory/factoryfactory/worker/lib/bin/refresh/jdk/model/ui/closebutton/press.java

And spread out among a bunch of other directories, and the java file is like...3 lines. But there are 10k files spread all around directories like this that are all 3 lines a piece with a class definition.

95% exaggeration. Here is reality:

• yeah you need main class coz it’s OO-language. Though, not required anymore, which should’ve been done once Java got scrip language capabilities (jshell) back in JDK 9. But as of today not required anymore
• imports exist in most if not all languages. Gotta be insane writing them manually in 2010 let alone 2024
• installing Java runtime (JRE) is as simple as installing any app. Though for installing JDK you need 5 mins for setting PATH. Think about JDK as like TSC or Webpack and JRE as a Browser. I’d argue installing and configuring JDK is simpler than TSC or Webpack
• Unless you doing some non-trivial multi-threading your stack trace will tell you exactly where is your NPE. You gotta be as blind as my teammates to spend more than 1 minutes to find where it is coz it literally tells you file and line numer where Exception occurred
• I mean, yeah if you use IDE from 2000 it will look like it. IntelliJ looks modern, though I don’t like the fact latest versions look like VSCode
• I hardly reach 3G of deps from all 10 projects I have on my workstation.
• IDK what anon means by ecosystem here, Java ecosystem is quite standard across the board. JDK(std lib), Maven/Gradle(deps, build, publishing), Spring Framework (all sorts of blueprints and solutions to standard app level problems), Hibernate/JPA (ORM), JUnit+Mockito (testing). These are tools and libs used in 90% of projects I worked on. Of course there will be more depending on project needs. Layers? It’s not like language imposes any layers whatsoever. It’s just common practice to have 3-4 layers and some glue in-between.
• don’t do GUI in Java it sucks and will suck until Java gets string interpolation. Hopefully soon
• concurrency is actually the only thing which is really bloated in Java. Which will change with next LTS version if I remember correctly. And it’s not that hard if you actually read the f manual and not just “try and hope”. Again it will become much more efficient and easier to follow soon. As of now - yeah, not trivial. But people mostly prematurely optimize, so karma
• Java is kinda have 20 ways to do same thing but actually no. Java built with idea of providing simple building blocks. Then it provides more specific API built on top of those building blocks. It allows to have API which solves typical problems and provides capability to solve custom problems with those building blocks. People often confuse this as many ways to do one thing but it’s like saying “I can have byte array why I need string data type”. Those are different levels of abstraction

Edit: typos

• a hello world doesn't need libraries in Java
• installing JDK takes at most 5 steps, depending on the OS
• a nullpointerexception is more likely the developper's fault (unassigned value, calling a function on a null object)
• IntelliJ is easy to install and modern (granted, other IDEs are very ancient)
• developping GUI apps is a PITA, no matter the ecosystem (generally)

The rest is more or less spot on (no idea about concurrency issues though)

I've been programming in Java professionally for 11 years. It's not just embellishment, it's outright lying.

Threads giving you race conditions? All concurrent programming will do that if you're shit at it.

Java has come a long way. I will admit that UI in Java is terrible. I would never do that.

Java is religiously backwards compatible. Modern java projects are not as enterprisey and boilerplatey, but, as jdk21 is backwards compatible with jdk1.3, you can still happily write code as if it's 2003.

Additionally, the java space is huge, so just wildly googling will probably not help you that much.

I have developed in java and C/C++ (many years) and Anon is maybe exaggerating a bit but not lying, we all have been there more or less.

Personally I hate how java forces you into bad architectural choices. Where is the unsigned int? Why isn't an int a class BTW? Why the pass by copy for some, by reference for others? Where is multi inheritance? Lots of things are dumbed down or you have no choice in the matter.

Sure didn't help it was a power hungry beast moving at snail speed back in the day too.

It's much better today, but in 2010 that was 100% accurate.

That being said, using Java as a first time programming language is like a 15 year old trying to fly an airliner to get a few blocks away to pick up some after school snacks. Obviously it's way overkill. Sure you could get across town with it, but it's probably 1000x more complicated than just a simple bicycle or even walking.

Java is industrial strength for professionals. There's absolutely no consideration made for educational usage.

Only have a beginner perspective, but in school I did really well in intro CS class that used Python. 2nd class was in Java and it almost broke me I was so confused.

Concurrency isn't bad, and package management (while maven is absolutely terrible to work generally), the dependency chains aren't exceptionally bad. Getting it installed is easier than python on platforms it's not already there on, not because it's more portable, but because the installers do more for you. Portability is hard, they haven't done it well but they've paved the default use case pretty well (although that works against you when you get to harder cases)

But the rest is pretty close.

The worst is the scaffolding, it's literally superstition for years to gain the understanding as to why you're doing it. I took two years of Java in high school before getting a degree - it was 4 years and halfway through a degree before I understood why I was making a class with a method main(string[] args). It works like that because your entry class calls the main method with a list of string arguments... I didn't understand at all, because even though it's simple it's a special case, and I'd never seen anyone name the string array anything different, so I just copied and pasted it, never understanding it because I'd been told "you just have to have that" for do long

Builds are arcane too - there's still companies that only use netbeans in their build pipeline, Android still requires a specific an old Java version in conjunction with the IDE or a gradle build, at best a project uses maven (the package manager), which is xml based and full of arcane details that are best treated as a magic incantation to be copied exactly from elsewhere

Anon pretty much sums up my experience with Java when I had to learn it in college 20-ish years ago. I'll never get rid of my distaste for the language I'm afraid.

It certainly can be that bad.

https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition

Anon is absolutely exaggerating for comic effect. That doesn't mean Java doesn't have all of those problems though, it just isn't as ridiculous as they made it out unless you get dragged into enterprise bullshit (then you're in for it).

After working with somewhat modern Java using IntelliJ for 4 years,, it's alright. Null is the most annoying thing imo; just use Optionals instead

For the “simple” apps anon is talking about, they are exaggerating a lot. Though, when you get beyond the obligatory “Hello World” and “a window with a button”, the complexity does start to increase exponentially.

Throwing in frameworks like Spring or JavaFX does make things more complicated. But it’s still relatively manageable once you get used to it and know what goes where and when.

Now the whole configuration thing, that’s an art form best left to those hooded “seniors”. It’s good to learn eventually, but not when you first start out; lest you have a fetish for pain.

Java has come a long way. It’s not the languages fault that people create monstrosities like AbstractJavaFinalSerializedFactory or whatever. But if you do want to be “good” at Java, you will want to learn about design patterns. It also doesn’t hurt to have a thick skin too, because you’ll be both criticized and made fun of for your choices. 😊

If you've never used Eclipse, which I assume it was referencing, it does feel old, clunky, and ugly out-of-the-box (to me at least). I tried to use IntelliJ wherever possible, but a previous company had a project that really didn't like to run from it but would with a very specific setup in Eclipse (I don't recall any details now more than 10 years later).

There is a fair bit of boilerplate and bloat.

I don't remember UI stuff being so bad, but most of what I worked with was old Swing/AWT stuff. I did have to use JavaFX (I think it was?) once and remember something about it being frustrating, but it was for some existing thing I had to modify.

I don't mind Java so much, but it's certainly not my favorite language.

I don't know how one gets a nullPointer when doing a hello world, though. I'm guessing this is embellishment or mashing together something later with their initial printing of hello since I think you'd come up with some other error in that process to getting something to print before nullPointer.

Yes. Not an exaggeration.

Edit: I say the same thing as a bunch of other commenters, yet I'm downvoted? Who's got a stick up their ass today?

Idk. Maybe it's because I learned OOP first that it makes more sense to me; but OOP is a good way to break down complex problems and encapsulate them into easily understable modules. Languages like Java almost force everyone on the project to use similar paradigms and styles, so it's easier for everyone to understand the code base. Whenever I've worked on large non-OOP projects, it was a hard-to-maintain mess. I've never worked on projects such as the Linux kernel, and I'm hoping it's not an unmaintainable mess, so I'm pretty sure it's possible to not use OOP on large projects and still be maintainable. I am curious if they still use OOP concepts, even though they are not using strictly OOP.

I also like procedural python for quick small scripts. And although Rust isn't strictly OOP, it obviously borrows heavily from it. Haskell is neat, but I haven't used it enough to be proficient or develop good sense of application architecture.

I've done production work in C, but still used largely OOP concepts; and the code looks much different than code I've seen that was written before C++ was popular.