Thread: Group/Unit, Folder/File?

Hello, this question has more to do with general program naming.

I'm developing a program where a list of groups will be recorded. Each group can have several units. This is similar to several files located inside a folder I can have multiple folders (folders can only contain files). This is also similar to cities belonging to a country. No two cities can have the same name in a country but they can reside in different countries.

If I had to create a structure to keep track of this data, what is a logical generic name for the group and units. I want the name to have more meaning but not be application specific like cities and countries. Just enough to specify something located inside something else.

Not sure if the question makes sense but hopefully it does. Any suggestions?

Thank you

Edit**
Dammit, wrong location, meant to post in Java Theory. Sorry

Dammit, wrong location, meant to post in Java Theory

Thread moved to the appropriate location.