I have my exam(SCJP1.4) in another 1 week. As of now i have finished reading all topics from khalid except for "collection n maps". im finding this chapter very borning and lengthy. can someone suggest a good link or book which covers the exam objectives to prepare on the above stated topic. it would also be great if you can suggest me regarding the mock tests - i.e. from which test to start ? how many test do i take n which are they ? the links for these tests ? how much minimum should i score in each test so that i can confidently take up the main exam and secure above 80% ?