java official Design Pattern

Keywords: Java, Design Pattern

The following resources are great, because they are from Sun. Pasted from http://java.sun.com/blueprints/patterns/

Java BluePrints Patterns Catalog
This section contains the Java BluePrints catalog of recommended J2EE patterns. It includes code samples from the Java BluePrints reference applications such as the Java Pet Store sample application.

Core J2EE Patterns
This section contains the online version of the best-selling book on J2EE patterns from the Sun Java Center architects, Deepak Alur, John Crupi, and Dan Malks.

Big Picture http://java.sun.com/blueprints/corej2eepatterns/Patterns/index.html

References and Resources
This section lists references which are cited throughout the J2EE pattern catalog.

Designing Enterprise Applications
with the J2EE^TM Platform, Second Edition http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/DEA2eTOC.html

J2EE Patterns Mailing List
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