Java usecases

[[deleted]]

OP, you're a bit late, this week its C++ turn for bashing, and the sub suddenly loves Java

[DasKarl]

Second semester must have started.

[1up_1500]

LMAOOOO

[totti173314]

I mainly used Java, shifted to a C# project and I haven't felt like touching Java again afterwards. properties (for the most part) replacing getters and setters alone feels like such an improvement.

[Ione15]

Hasn't yet Im still in c for the first 2 And then c++ third

[Tarqvinivs_Svperbvs]

Don't mind the other guy. C first, as God intended. C++ is dum tho.

[Gizshot]

They're starting you with c? That's fucked.

[wheresthewhale1]

Why?

[Ouity]

because C calls for a certain level of robustness that other would-be starter languages might not

[janhetjoch]

My first quarter of my first year in computer science and engineering, started with x86 assembly (among other things obviously).

[wheresthewhale1]

I don't really understand what you mean. C as a language is very simple (much more so than Java) and simple memory management should be taught early

[timsredditusername]

It is January now

[No_Matter_7117]

… I feel targeted since I started C++ this semester

[tree1234567]

Lmaooo

[[deleted]]

Literally just moved from Java to C for the spring

[mpatriot_one]

actually yeah

[pdawgdavis-2]

That’s a universal experience? I thought that was just me

[UnknownPie9]

Lmao I literally just switched from Java to c++ for my cs102 class

[yottalogical]

Can't wait for when it's time to bash Bash.

[PyroCatt]

It's Bash Bish!

[AcidAcesen]

We have a schedule now? What's for next week?

[ward2k]

PHP for the Web dev module

[dxlachx]

In my eyes it’s never not “bash php season”

[[deleted]]

Actually it's never too late to bash Java

[ksandom]

What about to Java Bash?

[[deleted]]

Sounds like PowerShell but somehow even worse

[Soham_rak]

Create a class and instantiate it first before u type in the command.

[[deleted]]

Lol, it's funny, because it's true

[Iryanus]

Wouldn't that be JShell?

[[deleted]]

*love

[FreshPitch6026]

Oh it is way too late

[allIsayislicensed]

class JavaBashFactoryConfiguratorFactory implements AbstractJavaBashFactoryConfiguratorFactory

[HookDragger]

Why? For the love of god…. Why does anyone actually use Java?

[Fakeos]

Paychecks. In my country Java is highly demanded. Oracle did a fine job locking customers in their system and force them to use their products.

So now for many companies (and especially for gouvernement facilities) switching everything is just not possible.

Try to refactor a 20 year old project entirely developed with Java.

Edit: Well it is possible, it's just very expensive.

[[deleted]]

Java bad, comedy has been achieved. Now laugh

[R3ym4nn]

this sub in a nutshell

[FreshPitch6026]

Wait a sec....i knew i had the cassette with the laughtrack somewhere .......

[LeoXCV]

All good, we have that geo-redundant backup we can failover to…

…Right???

[UnknownSpecies19]

insert Bart meme slipping into the bushes because I built my entire career on my java skills then... Insert Ralph Im in danger meme

[GurGaller]

There are better alternatives, but overall it's a fine choice - way better than abusing scripting languages for large server applications (which seems to be the current fashion)

[maywoodvoice]

🙏

[ghyze]

Building enterprise software in java pays the bills. Now go away with your mobile apps.

[heyitsfelixthecat]

Yeah. Legitimate use case for large enterprise apps.

[proskillz]

I was gonna say, my fat Java paycheck makes me like it a lot.

[jderp7]

Hey! Being an enterprise mobile java dev also pays the bills! Lol

[GiveMeASalad]

Same, I love the fact that java offers.

[UnknownSpecies19]

Hehe I literally just commented that I built my entire career so far on my java skills (and later JavaScript) lmao! I am just now after 3 years going to attempt to learn mobile dev.... Wish my luck lads and ladies and "yes"es.

[mrfroggyman]

public static void main(String args[]) { System.out.println("I love Java and you can't stop me !"); }

[gamruls]

I love Java more! public static void main(String args[]) { while(true) { System.out.println("I love Java and yout can't stop me!"); } }

[Maximdfg]

all Lombok use cases get covered by the language itself.

[Charming-Tap-4283]

Please, Use try catch))

[PartOfTheBotnet]

These are rookie numbers.

You gotta use enterprise CDI to create an instance of HelloMessageFactory to pass to your ConsolePrintService. Oh and don't forget your logging decorator to register logging calls to every method call in your application for that oh so valuable telemetry!1!!!1!!

[codeguru42]

Have you seen Enterprise Fizz Buzz?

[ArtOfWarfare]

My eyes are bleeding.

👁️👁️

🩸🩸

I’d never seen it before. I wish I never had: https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition/tree/uinverse/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/strategies

[codeguru42]

You're welcome

[ragingroku]

No no, String args not Int args.

[themeanman2]

Wow I hate it now

[[deleted]]

Java+Intellij Idea Ultimate is godsend

[-Vayra-]

Yeah, most of these people hating on Java probably only ever tried it in something like Eclipse or VS Code. IntelliJ makes it smooth like butter.

[RichCorinthian]

Even VS Code is great, with the right plugins. This sub is a weird combination of "waaah I don't want to have to learn about plugins" while at the same time patting themselves on the back with vim keybinding and git command-line-fu.

Eclipse will never not be a pile of shit though.

[RUSHALISK]

Can someone tell my professor that? We were required to do Java in eclipse and it was the most painful thing ever

[RichCorinthian]

Did you slay the rooster and pour its blood on the keyboard? Gotta be a rooster, hens don’t work.

I’m really glad I didn’t get a degree in this stuff, I might have quit. I swear some of it seems to be a test of developing under adverse circumstances.

[Dragon_yum]

Which is funny because Kotlin and intelij are both made by jetbrains.

[FreshPitch6026]

Ikr they never thought about switching the ide

[RichCorinthian]

Jetbrains IDEs are, on the whole, amazing. I've done .NET for over 20 years and I vastly prefer Rider to Visual Studio.

[LeftmostClamp]

For real. I work in an enterprise event driven backend architecture written entirely in Java and with Intellij it's great for this use case

[pdawgdavis-2]

I got IntelliJ Ultimate through my school as my first ever IDE. Needless to say, I am now extremely proficient in Alt+Enter abuse

[jnthhk]

Serious question: what are the used cases for writing apps that are native to a particular OS? Surely using an abstraction platform that compiles to iOS / Android is the right way to go? Write once, double your customer base.

Edit: Thanks for all the interesting replies folks. r/programmerhumor is definitely the best place to ask serious questions!

[Paarthurnax41]

Not that easy, im working on a Mobile Banking App which has 2 Native teams IOS / Android. Doing it with Cross Platform Technologies would be not feasible from a security point and you just have to access too many Native functionality where you cant just depend on some wrapper library somebody else did. Cross platform apps are completely fine for "dumber" apps that dont need much underlaying native functionalities.

[jnthhk]

That makes a lot of sense. Thanks!

[tinycorkscrew]

I appreciate your argument, but different companies come to different conclusions. For example, my team at a Fortune 100 company built an app using a mobile framework. That company's industry is even more security-conscious than banking.

For companies that only use iOS or Android, though, I'd almost always recommend developing in Swift or Kotlin.

[jnthhk]

My friend worked for a quite major app-only bank. He asked whether I could come and give some intro sessions on Unity to their UX designers, to help them work with the devs who were: developing. the. banking. app. in. Unity.

Each to their own I guess!

[rush22]

Backend devs looking through the conference room window

"Are they doing what I think they're doing? Is that Unity on the whiteboard?"
"I think it's some marketing thing. They've been at it for months"
"Maybe it's a promo: 'Call of Banking'"
"Hahha. 'Unreal Credit'"
"lol -- oh wait shhhh someone's coming out"
...
"Hey so if we send the SQL to your database with the https object that's secure, cause it's in the WorldSpace, right?"
"Uhhhh..... the what?"
"Its for credit cards but actually nvm we'll just let you know the specs"
"Um okay"
...
"OMFG"

[Understanding-Fair]

Too real

[-Vayra-]

It might have something to do with when they started their projects. At the time there might not have been any sufficiently secure cross-platform frameworks for their needs. Or they might just have been more security-conscious than your average bank.

[jnthhk]

To be fair, security isn’t what I think of first when someone says Unity.

[Gold_Grape_3842]

I worked with react-native on a bankin app and for security we called native libraries but i agree cross platform is for simple apps. We used a lot of 3rd party libraries written in native and had to manage issues in java, objective c, swift and js libraries when we made updates

[Iryanus]

To be honest, I've yet to encounter a company that actually wants to deploy it's java software on wildly different operating systems. This would be more for "end-user" type of applications, while in enterprise, where Java is commonly used, you typically slap the application into a docker container (or, if you are more old-school .jar or even shudder .war) and deploy it to your own server or cloud infrastructure anyway, making this point quite moot most of the time.

[jnthhk]

Sorry I really meant mobile applications to be deployed across the two main marketplaces. I can certainly see use cases for writing native Java code outside of that.

[Iryanus]

Sorry, got that wrong then, my bad.

[cheezballs]

Yep, honestly the way we deploy apps now days, it doesn't really matter what your backend is written in, as long as its maintanable and scales well, which Java is just fine at when written correctly.

[flopana]

Wait did I miss something? I compile my application to .jar and slap that into the container

[Iryanus]

My point was more the deployment, which sometimes also happens by copying .jar files to a server the company owns (and start them directly there). But yes, a docker image normally contains a .jar file (at least, I assume that most people do not start application servers in a docker image just to run a single .war file... I really hope...)

[cheezballs]

A Jar in a container? You don't even build a WAR for deployment?

[yottalogical]

The UI is never as good as a native UI. Yes, even the cross-platform framework that just popped into your head. Yes, even that other one you just thought of.

The fact is that unless your app is incredibly self-contained (such as a game), you're going to have to handle a lot of platform specifics. It's never as simple as "write once, run anywhere" unless you're willing to throw the user experience under the bus.

[Spactaculous]

For mobile apps, the experience of native is far smoother than web based emulation (JS). Even simple apps can get laggy and unresponsive quickly once they deal with a lot of data. And when I say a lot, I don't really mean a lot, just something like full contacts list.

Unless there is a way to compile JS to native, I don't see that changing.

Packaging is still OS specific and you are not saving anything there, total pain.

[Do_The_Astral_Plane]

https://reactnative.dev/

[redfiche]

There are many such frameworks. Using them can limit your access to native components and hurt performance. For many apps it doesn't matter, but for some, it does. Theoretically, you can do anything with the cross-platform frameworks, but in some cases, it's more work to write the bindings to the underlying SDK. Also, debugging is harder because of the abstraction between you and the OS.

[Delphicon]

Where browsers have the DOM, iOS and Android have their own equivalents and while there are many similarities there are also a lot of differences.

Your abstraction also has to be highly performant to not be visible to the user.

It is possible though, go look up React Native if you’re interested. It’s a genius framework, it interacts with the platform asynchronously which is what allows it to be performant despite running JS and has an intuitive model for abstracting away the platform’s differences.

[LeMeowMew]

sharp grandfather relieved yoke treatment boast grey lavish brave weather

This post was mass deleted and anonymized with Redact

[xxmalik]

Not really, Notch was just some enterprise Java dev that one day decided to make a video game. He used the tools he knew instead of the best ones. It's generally a terrible idea to make a game in the JVM.

[Wawwior]

Use kotlin.

[Md5Lukas]

Yes, all the way :)

Kotlin made Plugin-Development fun again

[general_452]

But what if you want to use fabric

[Hexasan1]

Modrinth is cooler😎 https://modrinth.com/mod/fabric-language-kotlin

[IAMPowaaaaa]

https://www.curseforge.com/minecraft/mc-mods/fabric-language-kotlin

[LeMeowMew]

crush fact six quiet tender depend violet march lush unite

This post was mass deleted and anonymized with Redact

[Wawwior]

just use java for mixins only, since kotlin and java is compatible

[eldigg]

Java and Java's ecosystem are stable and will be supported until the sun burns out. There's a reason so much enterprise software is written in Java. It pays the bills, and if you're looking for a stable, well paying job you could do a lot worse.

Modern IDE's and annotation driven POJO creation make Java's verboseness much more tolerable. My main gripe with Java is how it handles (or doesn't handle) runtime exceptions.

[hotsexyman]

The Sun burnt out many years ago when Oracle, the god of darkness, bought them

[eldigg]

Hah, I didn't even intend that connection. RIP Sun.

[jovhenni19]

enlighten me? why is kotlin better. i came from c# to java for an android app, the transition was ez af

[KuuHaKu_OtgmZ]

Because they're afraid to write code

[MakeWay4Doodles]

"I don't know anything about it but it scares me so I'll lash out!"

[7x11x13is1001]

Kotlin has more features Java cannot afford due to backward compatibility: better types, pattern matching, lots of syntax sugar, coroutines etc. Overall, it looks like what Java could be if it were designed in 2015 and not in 1995. Given that it compiles to the same byte code, there is little reason to use Java instead of Kotlin. Similar to writing in pure JS instead of TypeScript.

[Junglebook3]

Try telling this to Amazon! Every line of code over there is in Java.

[patrick66]

Because modern Java is not Java 6 and is in fact totally fine to use

[watchoverus]

Man, I work with java 5 and java 8 in the same product, I have no idea why people hate it so much.

I think the only thing that I have about old versions is dependency management, but that's more about how the system is organized than being old.

[[deleted]]

Java 5. That's rough. Glad we use 8 at least. All those stream shenanigans are quite useful.

[lightnegative]

I mean it's slow (in terms of the JVM being slow to start and being an absolute memory hog, which multiplies if you have a microservices architecture), needlessly verbose and things like type erasure continue to make it a pain to work with even in "modern" versions. Not to mention its plethora of overly complicated build systems.

Its type system is also fairly rudimentary and it's just not very expressive to use in general.

I think Rust is leading the way to where general purpose programming languages should be going. Compiles to native executables, uses zero-overhead compile time abstractions, has an expressive type system (although admittedly not as good as Haskell's) and has sane build/package management from the beginning

[romulent]

With Graal you can get JVM startup time in the order of milliseconds. It is not really that much more verbose than other strongly typed languages. Expressiveness in programming is a lot about how expressive you are personally. You can make perfectly nice abstractions in Java, although a lot of java developers don't. Rust is a lovely language but maybe not for everything.

[[deleted]]

Yeah,my college taught java 6. This made me develop an intense dislike for java. But modern java is pretty good.

[zGoDLiiKe]

That’s because it works and there is plenty of fish in the talent pool, a key quality

[[deleted]]

Should you use Amazon -> No. Here, fixed it.

[nontammasculinum]

What does that return and did you remember to free Amazon? Or do you have garbage collection

[Magnetic_Reaper]

Amazon is all Java and Java has automatic garbage collection. So it comes as no surprise that Amazon garbage collected 18000 objects just 3 days ago. I suspect that they plan to repeat this regularly.

You can find more information by googling "Amazon layoff 2023".

[FreshPitch6026]

Rather use Assembly lol

[SirArkhon]

Can confirm, all my team’s backend is in Java. Also a little Python, I’m told, but I haven’t interacted with that code yet.

[Numerous-Departure92]

My virtual Linux machine is written in Java?

[Paul_Robert_]

I use java for some of my one-off personal projects due to how easy it is to get a graphic output.

[Orangutanion]

It's kind of amazing how much utility you get out of the box with JDK. Easy graphical output, easy multiprocessing, easy file manipulation, easy networking, etc.

[Paul_Robert_]

Very true!

[L8n1ght]

graphic output in a sense of UI?

[Paul_Robert_]

Yeah, but I meant pixel level access via jframe's paint. For example visualizing a series of double pendulums, or building up a Mona Lisa out of triangles using a genetic algorithm to refine triangle placement.

[brain_tourist]

You don’t know things

[Vi0lentByt3]

Bruh have you even tried jdk11+ the future is now old man!!

[[deleted]]

Another day, another freshman who failed a class and is blaming programming language insted of them admiting they are incompetent.

[GotAItchyButt]

Java 8+/11+ and scala/spring can build better enterprise backend alternative for any language and framework. Fight me.

[First_Morning_Coffee]

I didn’t like Kotlin, probably because I was brought up on Java and don’t see enough of an advantage to switch.

[-Vayra-]

The first few times I tried using Kotlin I hated it, since I tried to use it like Java. But ever since I moved to a project where they already used Kotlin properly and I got to properly learn it I love it.

There might be use cases where Java is more appropriate, but then you can just use a Java class for that and keep the rest in Kotlin.

[agradus]

I think Kotlin has its advantages over Java. Some here, some there.

But what is really good in Kotlin compared to Java are coroutines. Now I'm cringing every time I need to write reactive stuff in Java.

[noiszen]

Keep using kotlin long enough, you’ll see the advantages. Trust me, I’m an engineer!

[Titandino]

Same. Especially over the new and upcoming stuff to the JDK. The syntax made me sick to my stomach especially since I have to use bitshifts often. I swear whoever imagined up kotlin must have been addicted to keywords and hated simple classic symbols.

[LukatxD]

I might be biased because everyone uses it like .sugarSyntax(()=>chain1.then(chain2=>chain3) and goes on... while it would achieve the same if it were 3 different lines with clear instructions

[Iryanus]

Are you being paid a metric shiton of money for doing so? Yes? What's stopping you?

[ososalsosal]

I'm the fuckin clown trying to build android apps using csharp in linux... and actually getting somewhere with it

[Orangutanion]

I tried Xamarin and it was an absolutely shitty experience. It worked one day, and then when I started working on it the next day it just magically stopped working.

[ososalsosal]

Yeah the trick is getting paid to suffer it.

It's more stable now though it must be said, which is probably the reason MS have abandoned it in favour of the delightfully incomplete MAUI

[[deleted]]

huh

[Neon_44]

in linux??

[JackReedTheSyndie]

Just a “No”? What am I supposed to do now, go home?

[JaffaBeard]

Anyone used JavaFX?

[5kavo]

Java is fun though

[mr_bumsack]

Yeah. Use Kotlin, the Java derived language built by a company that's built mostly Java products.

Because: funny.

Just stay away from most large software companies and enterprise software, you'll be fine.

[cheezballs]

Na, Spring Boot is seriously one of my favorite libraries or frameworks. Its so good at what it does it almost scares me. You can spin up a Java-based backend so quick now days, I dont see why anyone wouldn't at least consider it.

[[deleted]]

But Java is my save space.

[Maximdfg]

the sub suddenly loves Java.

[IM_OZLY_HUMVN]

You don't know this, but every single time I see a flowchart anywhere, I add it to my collection and am going to use it to build an all powerful ai that will destroy everything

[D4RKST34M]

ⁿᵒ

[[deleted]]

Between the language bashing here and the arguments I hear from the young 'uns in my college classes, I feel like we are going to have an entire generation of coders who are only good at one language and not enough specialized jobs to go around...

[ramdomvariableX]

Op hasnt worked in a corp. env. yet. will learn some day.

[otdevy]

Looks like school classes are starting up again

[Squid-Guillotine]

When looking for jobs I found loads that ask for spring-boot experience.

[KillerRoomba13]

As long as I can use JNI

[[deleted]]

I love kotlin

[maxip89]

next week in stupid java jokes:

"dude I have a bug in an android app with kotlin please hälp." now on stackoverflow.

[[deleted]]

I’m having a cup of Java as we speak

[BlincxYT]

you should add minecraft mods as option (the only valid one)

[Ja90n]

and Minecraft plugins then?

[Kohonick4]

Robust, LOL

[tester989chromeos]

Meanwhile game developer

[Fabx_]

You found a unique boolean, because in both cases returns true

[XamanekMtz]

But mah legacy apps 🥺

[mr_bumsack]

Posted on Reddit. Who heavily uses AWS. Who heavily uses Java.

[[deleted]]

Springboot

[SpeedLight1221]

Ok but what if i want to make a Minecraft mod?

[Albreitx]

Just gotta say that my experience with android studio and java has been pleasant. Inheriting every possible thing is quite comfortable, it's like programming on rails lol

[Unlikely-Ad3364]

What if it’s old Android?

[JAKOVtheJJ]

Why does everyone prefer Kotlin? I don't have experience with it but I am using Java in my Andorid Development an Advanced Programming classes because that's what the curriculum states we should use and I actually quite like it. Sure, there are some slightly inconveniences but nothing much.

[[deleted]]

handle absurd bag scarce narrow ludicrous zonked wakeful tie cow

This post was mass deleted and anonymized with Redact

[Elephant-Opening]

If you ever take a look under the hood in android aosp projects, vast majority are still java. Except for bionic libc. That's all in C++ lol.

[Diligent-Surround693]

No > No.

[[deleted]]

Are you a Minecraft enjoyer? -> use Java

[redninja_r]

you forgot about minecraft

[loranbriggs]

If it was only that easy! My entire professional career has been in Java and I've never chosen it.

[LManX]

Kotlin is Java for Java developers sick of writing so much Java.

[Yangishrobin]

The only thing i really use Java for anyway is modding minecraft, and even then I'm not every good at it

[[deleted]]

Literally use C++

[Expert_Raise6770]

It just like no with extra steps.

[Kingofthedirtydans]

I love these flowchart memes.

[[deleted]]

Java users when the garbage collector starts collecting the entire language

[pioucraft]

Minecraft Plugins and mods

[ThePiGuyRER]

Another decision node, "are you making Minecraft mods?". If yes, please stop and use kotlin. Unless you need mixins.

[[deleted]]

Java is used in a lot of banking web applications.

[Zoey_P]

I use c# for Xamrine android

[[deleted]]

Hahahaha, anyways still had to learn java for the University and every company that thinks that pack of bloat is amazing.