I have a swing application which uses Derby as database and I store both persian
and English values into this database.
Everything looks fine in the swing GUI, all Persian characters are OK and I have
no problem with them.

My problem is that:
- When I export some of my Data as CSV file, all "ی" character are
replaced by ? and almost all of my data is un-useable. Does anyone had such
problem with other databases?

- I am using JasperReport to prepare reports (mostly PDF format) and I have the
same problem. none of "ی" characters are shown. Does anyone else had
similar problem or know how to fix this problem?

-Is my problem related to database?maybe I should use another database to fix
the problem?