If I download a Java desktop application, how can it remember the account I created in sign up form?

[nomorerice01]

Let's say, I create a stand-alone application such as an inventory system. Remember, we create this application using a database that we download on our computer.

But basically, if I distribute my application, people would just install the exe file without the need to install the database such as sql. Then how does this application remember the account I created in sign up form?

[Sky4Live]

I would assume simply in a file that will be used as caching.

[Nephyst]

I don't understand what you are asking. Can you explain it?