The J2EE architecture is based on the Java programming language. What's exciting about Java is that it enables organizations to write their code once, and deploy that code onto any platform. The process is as follows:
Developers write source code in Java
The Java code is compiled into bytecode, which is a cross-platform intermediary, halfway between source code and machine language.
When the code is ready to run, the Java Runtime Environment (JRE) interprets this bytecode and executes it at run-time.
Advantage J2EE
Supports Cross platform Portability
Availability of open-source libraries
Huge server-side deployment base
Coverage of most W3C standards
Freedom from hardware and software obsolescence
Big financial savings by cutting network and terminal costs
Bonus return on the original investment in legacy systems.
Opportunities for electronic commerce using legacy databases. Through "Weblications," businesses can create a presence on the Web and outsource functions like order-taking and servicing.
