* Add API's: java.io.Console, java.util.NavigableSet, java.util.NavigableMap
* Number of questions: 72 (no change)
* Time: 210 minutes (increased from 175 minutes)
* Passing score: 65% (increased from 59%)
* Format of questions: No change.
Check this out: http://www.skill-guru.com/test/67/scjp-6-mock-practice-test The best ever SCJP 6.0 mock test I've taken. It has 43 very good free questions, and paid Qs are worth grossly more than the money one spends on them.
There are awesome explanations to right and wrong options for most of the Qs. One gets to learn many things from a single Q.