Only by hand, unfortunately. I recall
Java having a mechanism where you have to laboriously find out and then delete all files. Fortunately, it is rather easy.
What you could do, though, is to extend File (I don't remember if it's final or not, sorry) and reimplement the delete method to search and delete all files by default. Thus you will just call delete, and it will be all nicely accomplished without undue effort.
[ July 22, 2004: Message edited by: Anton Golovin ]
Anton Golovin (anton.golovin@gmail.com) SCJP, SCJD, SCBCD, SCWCD, OCEJWSD, SCEA/OCMJEA [JEE certs from Sun/Oracle]