Refer the following links:
http://www.javaranch.com/scealinks.jsp
http://www.geocities.com/developergrp/uselink.htm
http://www.levteck.com/
http://www.geocities.com/SiliconValley/Network/3693/othersites.html
http://www.aniyog.com/java/certification/java_mock_test.htm
http://dmoz.org/Computers/Programming/Languages/Java/Resources/Certification/
http://www.danchisholm.net/sept27/guide/index.html
http://www.aadamscomputertraining.com/Computer-Certification/y-Java.shtml
http://home.bredband.no/gaulyk/links/scjp.html
http://i.webring.com/hub?ring=javacert
Here are some more links for your ref..
Java Technology Certification -
http://suned.sun.com/US/certification/java/
Starting point for Sun's Java technology certification.
jCert - http://www.jcert.org/
Learn about initiative to recognize Java certifications across industry vendors.
SCJP 1.4 certification primer -
http://www-106.ibm.com/developerworks/java/library/j-scjp/
Outlines the new programmer certification exam with suggestions for preparation, sample questions and links to resources.
Whizlabs - http://www.whizlabs.com/jwhiz.html
Test simulators for Sun Java Certification Exams: SCJP, SCWCD and SCEA [Commercial]
JavaPrepare - http://www.javaprepare.com/ Tutorials, mock exams and other preparation material for SCJP and SCWCD.
Marcus Green's Java Certification - http://www.jchq.net/ SCJP exam resource with tutorials, mock exam and community features.
Absolute Java - http://www.absolutejava.com/ Collection of tidbits to prepare for SCJP exam.
Java Certification Webring -
http://i.webring.com/hub?ring=javacert
Web-ring of sites involved with certification.
Bill's Java Certification Resources -
http://www.lanw.com/java/javacert/default.htm
SCJP mock-tests and links to other resources.
Levteck.com - http://www.levteck.com/ Includes list of certification books, study aides, links for mock exams and salary surveys.
Java Guru: Java Certification Forum Home Page - http://www.jguru.com/forums/JavaCertification
Forum to pose and view the who, what, where, why and how questions on Java certification.
Wah! Java - http://www.geocities.com/wahjava/ Contains topic-wise mock tests, tips from those who passed, recommended books and links to other testing/java resources.
Certified Java Programmer Mock Exam (310-025, 310-035) - http://www.danchisholm.net/ Contains mock exams and tutorials for SCJP exam.
Certification: The Java Mock Test -
http://www.aniyog.com/java/certification.htm
Offers free applet based mock exam for SCJP2.
VoodooExam - http://www.geocities.com/gnashes30/java/mock.htm
SCJP mock exam engine with facility to add new question/answers.
Needs jdk1.2.1 or higher [download].
Free Java Certification Training -
http://www.michael-thomas.com/
Contains mock tests, source code, resources for Sun Certifications, resources on Web-development and UML.
SCWCD Exam Review -
http://courses.coreservlets.com/Course-Materials/15-Web-Component-Certification.pdf
Review notes for the Sun Certified Web Component Developer exam.
[PDF]
Jiris - http://www.jiris.com
Contains mock exams, links, forum, code examples and other SCJP/SCWCD resources.
JavaCaps Home Page - http://www.javacaps.com/ SCJP, SCWCD resources including tutorials, FAQs, Mock Exam and links.
JavaCoding.net - Certification -
http://www.javacoding.net/certification/
Certification information and mock exams.
Sun Certified Java Programmer sample test paper! - http://www.geocities.com/skmajji/Main.html
A practice test for SCJP comprising of 30 questions with answers.
Anilbachi Java Certification Resources - http://www.anilbachi.8m.com/ SCJP tutorial, mock exams, objectives, mock exam links and discussion forum.
Mock Exam - http://www.valoxo.ch/jr/mocks/mock01a.html
Javascript based SCJP Mock Exam.
withmilk.com - SCWCD mock exam -
http://www.withmilk.com/scwcd.jsp
Offers mock Sun Certified Web Component Developer exam.
Sun Certified Programmer Examination Revision Book - http://indigo.ie/~dywalsh/certification/
SCJP Tutorial based on Sun's Objectives.
Enthuware - http://www.enthuware.com/ Test simulators for Sun certification exams. [Commercial]
The Java Skinny - http://www.acmerocket.com/skinny/ Contains sample questions, SCJP exam objectives with code examples and other resources.
Java Quick Reference - http://www.janeg.ca/index.html Comprises of concise study notes for SCJP exam and other links.
About.com - Java Certifications -
http://certification.about.com/cs/freequestions/index.htm
Explore information and links for Java and Sun certifications.
Includes articles, practice tests, software reviews, book reviews, and forums.
Java Certification Study Group -
http://groups.yahoo.com/group/javacertstudy/
Study community with forums, chat and resources.
Universal teacher -
http://www.geocities.com/rameshchhabra2002/Java/certification.htm
SCJP exam simulator containing 600 questions [Download].
Java Certification Study Notes -
http://www.geocities.com/velmurugan_p/
SCJP & SCWCD study notes, resources and tips.
Tipsmart.com - http://www.tipsmart.com/ Contains interactive quizzes, pitfalls, FAQs by programmers, list of integrated development tools.
JavaQuestion Bank - http://javaquestion.tripod.com/ Includes general and certification questions and other java resources.
SCJP Preparatory Questions -
http://sanjayahuja.tripod.com/tech/scjp/scjp.html
SCJP questions, summary, exam details and resources collected from various sites.
withmilk.com - SCJP2 mock exam -
http://www.withmilk.com/scjp.jsp
Offers mock SCJP exam.
Learn + play Java - http://www.jai.ch/ Interactive, downloadable course for SCJP with built-in Java source interpreter. Work and experiment with class libraries using the tests and JLS Summary.
Java Certification Exam Questions -
http://home-1.tiscali.nl/~bmc88/java/javacert/
SCJP mock tests, exam notes and other resources.
SCJP2 MockExam -
http://www.geocities.com/rraje_2000/MockExam.html
60 questions mock test [Download].
Dallas SCJD Study Group -
http://www.geocities.com/developergrp/
Developer exam resources including FAQs, guidelines, presentations, free books and discussion forum.
JSecure - http://www.netcraftonline.com/ Java Certification exam simulator. [Commercial]
Online Java - http://www.geocities.com/korayguclu/
Contains excerpts from an ongoing SCJP book, exam information, notes and links to Mock exams/resources.
Radhika's Java and HTMl Home -
http://www.geocities.com/r_palwai/scjp.htm
Contains links to SCJP resources.
Prasks Resources -
http://prasks.webahn.com/architect/scja.html
Sun Certified Java Architect resources and experiences.
Certification4Career - http://www.certification4career.com/
Contains study guides, mock exams, discussion board and links for SCJP.
Quick Java - http://home.worldonline.dk/qjava/ Contains a Java lookup reference and test-simulator based on a book.
go4java- Java Certification Site -
http://www.mycgiserver.com/~go4java/
Includes SCJP experiences, FAQs, mock exams, tutorials and links to other resources.
Java.CertifiedProgrammer.com -
http://java.certifiedprogrammer.com/
Contains study aides, news and mock exams.
Abhilash's java quiz site -
http://www.angelfire.com/or/abhilash/
Comprises of set of nine practice quizzes for SCJP exam with answers.
Oracle Certified Java Developer -
http://otn.oracle.com/training/certification/jdeveloper_ocpds.html
Starting point for Oracle Certified Java Developer OCP program.
Java Programmer Certification -
http://www.geocities.com/technofundo/tech/scjp/scjp.html
SCJP Revision notes, links and other resources.
j-think - http://jamal.pisem.net/scjpnotes.htm
Contains SCJP notes.
Java Certification (SCJP) -
http://www.akgupta.com/Java/certification.htm
Contains SCJP mock exam, tidbits, exam notes and links to other resources.
Sun Java Certification Notes -
http://216.239.33.100/search?q=cache:http://www.miindia.com/tech/javacert.htm
Contains concise preparation notes.
Cramsession -
http://studyguides.cramsession.com/cramsession/Java/
Study guides for Java Certification exams; needs (free) registration.
JCertify - http://www.enterprisedeveloper.com/jcertify/
Java Certification exam simulator with tutorials and integrated training content. [Commercial]
If you had gone thru all these sites, you would be the Master in java! :-)
Good Luck!