What is J2EE ?

J2EE

J2EE stands for Java 2 Platform, Enterprise Edition
Upto version 1.4 it was J2EE . Now 2 is dropped so it is known as Java EE.

Actually sun has created three editions.

1. J2SE ( laptops and desktop computers and mobile devices )
2. J2ME ( for mobile phones and PDAs )
   
3. J2EE ( for Application servers )

J2EE is free. You can download it from the Sun Microsystems website.

Java 2 Platform, Enterprise Edition provides a component-based approach to the design, development, assembly, and deployment of enterprise applications.

The J2EE platform offers a multitiered distributed application model, reusable components, a unified security model, flexible transaction control, and web services support through integrated data interchange on Extensible Markup Language (XML)-based open standards and protocols.

The J2EE platform uses a distributed multitiered application model for enterprise applications.