I have a question:

I have a series of servlets that allow users to interact with a
database.  One feature I would like to add, is to have an automated
email sent to me once a week to notify me of any changes that were
made.  I already have the code in place to send this to me on my
command, but I would like a way for this to happen, say for example,
every friday evening.

Could someone recommend to me a course of action on how to do this?
Currently, all my code is done in Java, so doing it through that would
be ideal.

Thanks in advance,
Matt