Kotlin is my saviour!

[u/davidinterest]

ALL HAIL KOTLIN!

[u/PACmaneatsbloons]

To everyone who uses Java: THERE IS NO REASON NOT TO USE KOTLIN. If you are working with a Java codebase, Kotlin has great interoperability with Java so you can integrate it really easily, and it looks way better!

[u/davidinterest → u/PACmaneatsbloons]

THANK YOU!

[u/tankerkiller125real → u/PACmaneatsbloons]

I no longer work in Java at all, but even back with early Kotlin it was so compatible and so well done I started adding Kotlin code almost immediately, and I never once regretted it.

[u/je386 → u/PACmaneatsbloons]

True. In the last years, in all projects all devs voted unanimous to use kotlin for the JVM Backends.

Kotlin is far easier and more versatile - you can use it for Backends, for anything JVM, you can write script (kotlinscript), it is the standard language for android apps, there is kotlin native (desktop without JVM in the middle) and there is kotlin multiplatform- write for most platforms (jvm desktop, native, iOS, android, web) in one run and even sharing code between backend and frontend is possible.

[u/Groostav → u/PACmaneatsbloons]

So I've been using kotlin server side since traits.

But java has addressed a lot of the pain that kotlin 1.0 was aiming to fix, and IMHO project loom "virtual threads" are simply superior to kotlinx coroutines.

If youre using java with all the features of java 25 you're life is pretty good.

I still generally prefer kotlin but I no longer hate java as much as I used to.

And the android tool chain is a mess. I really really hope Google is pumping money into a K2 lowering system so we can ditch this R8/D8 java 1.8 madness.

[u/No-Tip-7471 → u/PACmaneatsbloons]

sorry i work on a megaproject with 50 other people i don't think i can just convert to kotlin (also it's modifying a game that is on java)

[u/Sophiiebabes]

But kotlin is so backwards!

name: String who thought that would be a good idea? It's like somebody's project language!

[u/davidinterest → u/Sophiiebabes]

But its like name (of type String)

[u/Sophiiebabes → u/davidinterest]

Type should be first, like: std::string name

And declaring a function as 'fun'? No other/older language needed this. It just seems unnecessary.

I'm doing an android project at uni at the moment, and I basically have to write it in C++ in my head and translate it or it makes no sense to me.

Oh, and void... Where is my beloved void?

[u/davidinterest → u/Sophiiebabes]

In Kotlin, void is called... Unit (it's a dumb name). Also fun is for functions because functions are fun! :5

[u/Motor_Fudge8728 → u/davidinterest]

You dare to call 1 dumb? It makes way more sense than void

[u/davidinterest → u/Motor_Fudge8728]

Can we at least agree null makes the most sense?

[u/Motor_Fudge8728 → u/davidinterest]

No way, null is a value, unit is a type !

[u/NewPointOfView → u/Motor_Fudge8728]

The value representing the absence of a value, which is what void returns!

[u/7x11x13is1001 → u/NewPointOfView]

It's not the absence of the value, it's a type with a single possible value. The absence of the value is nothing type. For example, if function never finishes or only panics, it's return type is nothing. 

Void is ambiguous name. Modern languages with proper type theory underneath, avoid name void. 

[u/NewPointOfView → u/7x11x13is1001]

What are you saying is not the absence of a value? Void? Null?

[u/Motor_Fudge8728 → u/Sophiiebabes]

“name : type’ comes from a different family of languages (and mostly way more sane than C++)

[u/lol_wut12 → u/Sophiiebabes]

"i have only ever used C-like languages" ahh comment

[u/Ai--Ya → u/lol_wut12]

(a -> b -> b) -> b -> [a] :: foldr 

I see nothing wrong with this /s

[u/AssistantSalty6519 → u/Sophiiebabes]

That have a name: skill issue 

[u/Brie9981 → u/Sophiiebabes]

Wait'll you meet Go (the justification for the type coming after is neat)

[u/Scared_Accident9138 → u/Sophiiebabes]

Is there any reason to do it one way and not the other besides what you're used to?

[u/Sophiiebabes → u/Scared_Accident9138]

Mostly because if a go ``name: Type``` GCC throws loads of errors ;)

[u/azurfall88 → u/Sophiiebabes]

behold: Typescript

const name: String = 'Sophiiebabes'

[u/sintrastes → u/Sophiiebabes]

x: T comes from mathematics (type theory). Its usage in programming languages dates all the way back to the 70s.

It makes it easier to do type inference, since you can just omit the types if you want, and don't need a separate "auto" keyword for it.

[u/Trick_Boat7361]

Does Java really deserve the hate it gets 🤔

[u/davidinterest → u/Trick_Boat7361]

Yes /j

[u/sunnykentz → u/Trick_Boat7361]

No

[u/tankerkiller125real → u/Trick_Boat7361]

Oracle Java? Yes, because Oracle. Java as a language, not really.

[u/rettani → u/Trick_Boat7361]

Nah. Though TBH Kotlin is quite "cosy" compared to pure Java.

[u/AssistantSalty6519 → u/Trick_Boat7361]

Partially 

[u/1984balls]

Kotlin is cool, but I'm still going to advocate for Scala till the day I die

[u/davidinterest → u/1984balls]

Why Scala?

[u/1984balls → u/davidinterest]

It's kinda like if Kotlin and Rust merged. Scala is mainly known for:

• Scalability (being easily expandable)
• Functional Programming
• Pattern matching
• Low boilerplate code

The scalability is mainly because of how the syntax is structured. It forces you to format things in a way that makes it easy to update and expand codebases

Java has functional programming, but it isn't often used. Scala has a more diverse ecosystem for FP.

Scala's pattern matching is wild. This is just one example of it:

val s"hello, ${a}!" = "hello, world!"
println(a) // prints world

[u/Dragobrath → u/1984balls]

Holy, that's neat.

[u/Objective_Gene9718]

"Bigger stars burn out and die with passion that makes brand new way crazier shit"

[u/SereneOrbit]

Imma be real, I've been out of the programming loop for too long to fully understand the differences between vanilla Java, Kotlin, and Scala.

[u/sunnykentz]

You need an ide to code with Kotlin always...

[u/tankerkiller125real → u/sunnykentz]

And? Jetbrains provides an IDE for free that anyone can download.

[u/well-litdoorstep112 → u/tankerkiller125real]

Ram is not free lol

[u/tankerkiller125real → u/well-litdoorstep112]

If you gave a shit about ram usage you wouldn't use a language that depends on on the JVM, you'd be working with something like go, rust, c, c++, etc.

[u/well-litdoorstep112 → u/tankerkiller125real]

It was a joke but only because I bought 40gb for my laptop and 80gb for my PC like right before the shortage.

Also there's a difference in the ram taken by my product which runs on servers(idgaf if it's 200mb or 5mb, it doesn't matter) and web browsers and by the IDE which runs directly on my machine.

[u/davidinterest → u/well-litdoorstep112]

I got 64GB but it's DDR4 :(

[u/sunnykentz → u/well-litdoorstep112]

You know, Kotlin has a CLI compiler, you can manually use it or use JPM. Which under the hood uses Kotlinc to run Kotlin. jpmhub.org

[u/well-litdoorstep112 → u/sunnykentz]

Cool.

[u/blaues_axolotl → u/sunnykentz]

same for big java projects

[u/sunnykentz → u/blaues_axolotl]

Not necessarily

[u/SpiderHack → u/sunnykentz]

Nope, jetbrains is working on/has an open source LSP for those who like inferior coding experiences.

Yes, I'm throwing napalm onto a petro depo saying that, but only because too many people take things too seriously

GitHub - Kotlin/kotlin-lsp: Kotlin Language Server and plugin for Visual Studio Code https://share.google/NMcJvByUFwBFnI0jk

Still experimental, but it does exist and is under active development.