Sun Inc.’s Java 2 Platform API Version 1.4.2 Website: [http://java.sun.com/j2se/1.4.2/docs/api/index.html]
David Flanagan. Java In A Nutshell: A Desktop Quick Reference, 4th Edition. O’Reilly and Associates, Inc., Sebastopol, CA. ISBN: 0-596-00283-1
David Flanagan. Java Foundation Classes In A Nutshell: A Desktop Quick Reference, O’Reilly and Associates, Inc., Sebastopol, CA. ISBN: 1-56592-488-6