Naming convention for properties in property file

Question

What are the naming conventions for property names defined in properties files in Java? Can I use uppercase or only lowercase?

For example: bankAccountNumber or bank.acc

Answer 1

I guess there is no such common conventions for property files. However, using lowercase letters in an eligible/easy-to-understand format (e.g. bank.account.number) sounds good, and using the property files with their original extensions (.properties) is also recommended.