Regarding J2eepatterns which book or materials i have to go through for real exams. core j2ee patterns 2 nd edition is needed or HFSJ is enough. Anybody can guide me how to proceed for this chapter
Java patterns is a very important chapter as 6-7 questions are expected from this topic. I think, HFSJ chapter is not enough as it does not help in exercising the question on this topic. Try to get hold of some good material on patterns from the internet and study it.
For the exam, my sugestion is to stick with HFJS. Everything you need is there (for the exam, and not real world). If you have some doubts any of the patterns, just take a look at the j2ee patterns blueprints.