Why don't I have to import a class I just made to use it in my main class? (Java)

Question

I am currently learning Java using the Deitel\'s book Java How to Program 8th edition (early objects version).

I am on the chapter on creating classes and methods.

Answer 1

The classes located in the same package do not have to be imported, as they are visible to each other. You simply import a class that is in another package:

import java.util.ArrayList;

Note that you are not importing the file, but the class.