file_names.md

File names

When you make a file called Ball.java you should expect to find a class named Ball inside of it.

This is a general rule. When you split code into multiple files each file should be a class and the name of the class should match the name of the file.

So if I want to write a Position class

class Position {
    int x;
    int y;
}

That should go in its own file named Position.java.