Running a class on startup - java newbie....

[Ciramella, EJ]

I'm working on jsp based registration system where after submitting the
registration form, the application then inserts a row in a table that
contains the date it was created as well as an ID.  What I'd like to do is
have <something> running that sleeps for 5 minutes at a time and then checks
to see if 24 hours have passed since the row was inserted (and if so, delete
it).  Is there a way to start up a class with my web app?