I haven't gone through each and every question in the exam. I thought of letting you all know about JavaCaps resources and get the feed back from you all. Please do send your comments. I will evaluate and add the comments and send the same to the author also. This site's author has got some java related tutorials also.
Response is immediate.
Also sends one question a day with the answer to the question the next day. 20 Questions look good. I just browse through some of the questions. Definitly worth taking atleast once. 44 TipSmart's sample paper 24 Questions mostly based on Java language basics which is important for SCJP 2 exam.