hi everyone this is my first message to this forum. actually i need mock test links for SCJP 1.4 only ,, because mostly mock exams on net have questions of -310-025 (SCJP-1.2) version and questions given on topics related to SCJP 1.4 version are very easy.
K&B book and this forum alone will do. Read the book "line by line". You can even buy the book by Khalid Mughal, i used both and they are sufficient enough for the exam. Mock tests, as mani said most of them are for 1.2 even i felt the same. If you really want to invest money i would suggest for Marcus Green's mocks. No, i haven't tried it but heard from most of the ranchers that it is close to real exam. Can't say anything about whizlabs simulator.
However, much better thing is as you read a concept, frame your own questions with all possibilitiesm through all angles and check how they all behave. If something looks strange come here and drop the query, there are high chances that you will be responded within few minutes.