I feel like I should know this but seems like no (lemmy.world)

submitted 2 years ago by PauMasia@lemmy.world to c/programming@programming.dev

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How can i connect imagine a Qt interface(C++) with a logic in java. I feel like I've should know this already but I don't, I know there are API but I don't want to do it,

More context: They told me to write an aplication, game such as 4 connect, battleship or that kind of games, so I've thought to make the "snakes and ladders", i knew how i could do the 2 thinks separately but I don't know how to connect the frontend with backend, even tho I knew the games should works with threads. So I don't know if I could do it with the interface in Qt, because the main porpouse of the practice is to work with threads

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[-] anti_antidote@lemmy.zip 20 points 2 years ago

Think about why you're wanting to do this. Is there a material benefit you'll get from splitting your codebase like so? Enough to overcome the fact that you've split your codebase into two very different languages?

When you're going between languages like this, you either need some kind of communication protocol (e.g. JRPC, TCP, or maybe something home cooked) or you need a stable ABI to allow the programs to talk to each other directly.

My point is, you probably don't want to do what you're trying to do. Unless you have a really good reason, pick one language and stick with it.

[-] Solemarc@lemmy.world 3 points 2 years ago

Also, a funny side effect of game programming is that loosely coupled components like this can make development harder. If it doesn't need to be split like this, you probably shouldn't.

[-] MadhuGururajan@programming.dev 1 points 2 years ago

on the other hand challenges like these give us valuable experience. Its not often one has the opportunity to write two programs in different languages from scratch and figure out the coupling. I know I would be excited if I got paid to do such things.

And loose coupling is a good constraint to force a good design for your application.

[-] ulterno@programming.dev 1 points 2 years ago

I once had to use a network API, which was only available for Python, with sensor drivers whose API was only available in C.
I just used a file as a buffer to transfer data between them and didn't need any other interfaces.
The price paid, was polling.

this post was submitted on 04 Feb 2025

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