Common Methods for Accessing In-App Update Files in Java

I'm sorry that the title is hard to understand.

In Java, let's say you create a CUI application that runs on its own without specifically using a framework (?) such as JavaWebStart or Tomcat (even if it's not a CUI or a JavaFX GUI application).
For example, java.lang.ClassLoader#getResource, for static data, you can browse and access large files and large files in the app. How do you usually dynamically create or update large files
However, it is not a temporary file to be generated/disappeared per process, but a file to be generated/disappeared per application. Also, I don't think it's a little exaggerated to use a separate database.

If it's small, you can see that there's something like java.util.prefs.Ideally, it would be nice to have an app-specific area concept that can be referenced and updated like Android and iOS, but was there such a concept in Java SE itself?
Also, can you think about the functions of standard projects generated by Eclipse, NetBeans, Maven, etc.?