Multiple languages in use is called "interoperability" or "interop" for short. Your example is wrong. Java can call C functions. The language provides a mechanism for interoperability. In the case of .NET, languages are compiled into IL as part of the CLI.

There are several different well-established ways for two programs to communicate with each other. You've already identified one obvious one, by sharing files, and one obvious difficulty with it. But there are other ways.

Oct 1, 2024 · In this blog, we’ll break down the reasons why you might want to use multiple programming languages, explain the methods to integrate two or more languages in one project, and provide you with real-world examples to illustrate how it’s done.

For two programs written in different languages to chit chat and work together you’d need an API (application programming interface) between them. I have a frontend written in TypeScript with react, and my backend is Go.

One popular style of programming is using "microservices", where you take a bunch of different programs, all written in different languages, all communicating with each other via network APIs, but many of them all running on the same computer.

Mar 8, 2024 · A language processor, or language translator, is a computer program that convert source code from one programming language to another language or to machine code (also known as object code). They also find errors during translation.

Short answer: Yes; it is entirely possible to do anything in one language in another language. However, it may be harder to duplicate specific logic across languages. Long answer: Although it can be possible to implement the same program/class/software in one language in another language, this is not always the best thing to do.

When using multiple languages and compilers in one project, you must compile them into executable code that can run on your target system. There are various ways to do so, such as...

Apr 12, 2017 · It's possible to have compiled modules written in different languages talk to each other, but to combine Java and C++ in the same source file would be extremely confusing and difficult: how would the compiler know which statements are Java and which are C++?

Another method is to spin up parts of your program, written in different languages as separate processes, and then utilize Inter-process Communication (IPC). Specifically, you can make a Remote Procedure Call (RPC), or open up sockets, pipes, etc.