Compilation

The first step to sharing code you've written with other people is to compile it.

Compilation in the context of programming languages means that a program reads all your code, ensures it abides by the rules of the language, and translates your code to some other form. Usually this other form is in some manner more directly "runnable" than the code you started with.

We call programs that do this reading, ensuring, and translation "compilers."

This happens behind the scenes when you run java src/Main.java but for sharing code you will need to do it yourself as a separate step.