when i used to read his book and had one of the problems with exercises i just emailed the author , he responed to my questions very fast within 10 minutes or so. Or it might have been one of his helpers.
Val SCJP <BR>going for SCJD
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com