J2EE stands for Java 2 Enterprise Edition. It defines the standard for developing multi-tier enterprise applications. The J2EE bases on the J2SE (Java 2 Standard Edition) and takes advantage of many features of J2SE. It then adds support for EJB (Enterprise JavaBeans) components, Java Servlets API, JavaServer Pages and XML technology. More recently, the J2EE adds specification that supports the development of web services.
The following are some starting points for you to study more and deeper about J2EE.
- J2EE Technology Website (Sun Developers Home > Products & Technologies > Java Technology > J2EE.)
- J2EE 1.4 Specification (PDF file)
- The J2EE 1.4 Tutorial (for Sun Java System Application Server Platform Edition 8 2004Q4 Beta)
- Developing Enterprise Applications Using the J2EE Platform. It is a tutorial from Sun Developer Network Community.
- Mastering Enterprise Java Beans (2nd edn.) by Roman, Ambler and Jewell. The book has free PDF and source code available.