UML Class diagramms - how to show that some classes are in a different directory?

Question

Java

Good day!
I decided to make a Class diagram for my already existing project. I am using starUML.
The structure of the program is as follows: there is a main directory and a subdirectory in it. Classes in the main directory have link(s) to classes in the subdirectory.
Question: How to depict not only the relationship between classes, but show that some of them are in a different directory?

Answer 1

With the help of the package element, of course ! In UML, this is an abstraction, in principle, for grouping anything, but it, in particular, corresponds to the 1: 1 semantics of package in Java, which, in turn, corresponds to which folders of the file system the classes are in))