Rohan Kayan wrote:I am planning to go for SCJP6 upgrade exam please let me know which study material should I start with ??
Rohan,
Generally, the Sierra/Bates book is recommended for anyone preparing for the
SCJP. See
this thread for the usual reply to this question.
Being an upgrade candidate, you may not need to spend months preparing, but I'd recommend going over the book in detail. There are some things added to the exam, and some things taken off it (for instance, bitwise operators are no longer on the exam). I earned my SCJP yesterday, and I can tell you the
test expects you to know details of every single category. K&B's book will definitely help you get those things reviewed and brushed up.
Also, you might want to look at some of the q/a in this forum. You may benefit by answering some questions as well. For me, answering people's questions always helps me more than asking my own questions.
Good luck,
Ben