This chapter has introduced some, but not all, of the components that Sun refers to as J2EE: the Java 2 Enterprise Edition. The goal of J2EE is to create a set of tools that allows the Java developer to build server-based applications more quickly than before, and in a platform-independent way. It's not only difficult and time-consuming to build such applications, but it's especially hard to build them so that they can be easily ported to other platforms, and also to keep the business logic separated from the underlying details of the implementation. J2EE provides a framework to assist in creating server-based applications; these applications are in demand now, and that demand appears to be increasing.

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