How to save some config information in an Java Applet?

Question

How can I save a configuration locally and permanently in a Java Applet? Ideally this should be work with a not signed Applet.

Answer 1

In addition to AlexR's methods..

1. ..
2. ..
3. Run the applet in a new generation Java plug-in (1.6.0_10+) and use the JNLP API's PersistenceService to serialize the data. Here is a demo. of the PersistenceService.