Even I have this question. e.g. answer to question 7 on page 219 (HFSJ 2nd Edition, Indian print) says "(Servlet v2.4 pg. 58)". What is that? is it page number of some PDF which states Servlet v2.4 specification? where to find that pdf?
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