http://www.geocities.com/gnashes30/java/mock.htm

Download the applet and practice

http://www.geocities.com/rraje_2000/MockExam.html

practice tests

http://www.javaprepare.com/quests/question.html

Questions on various topics

http://www.vivek.4mg.com/javacertification/jsexam.htm

Download the applet and practice

http://www.4tests.com/exams/examdetail.asp?eid=61

Download the applet and practice

http://www.geocities.com/SiliconValley/Orchard/9362/java/javacert/JDCert.html

Download the applet and practice

http://www.ii.uib.no/~khalid/pgjc/jcbook/engine.html

Download the applet and practice

http://www.jchq.net/mockexams/exam1.htm

Marcus Green Exam 1

http://www.aniyog.com/java/certification.htm

Simulation Applet

http://www.lanw.com/java/javacert/HardestTest.htm

online simulation applet