The JavaTM Tutorial

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## Trail: IDL

### by Jim Inscore

This tutorial introduces how to use JavaTM IDL, the CORBA-compliant distributed object technology provided with the Java Development KitTM 1.2. Using Java IDL, Java applications and applets can communicate with objects anywhere on the web, and written in any language that supports CORBA.

This chapter is divided into three sections:

Introducing Java IDL explains the basic concepts and standards behind Java IDL and defines the key terms used in the CORBA technology.

The Hello Client-Server Example steps through a very simple but complete client and server that use Java IDL.

Summary compares features of Java RMI and Java IDL technologies, and points to other resources on Java IDL and CORBA programming.

> Additional Documentation: The SDK 1.2 documentation contains complete Java IDL information including the API reference for all relevant classes.

> Note: The JavaTM 2 Platform, Standard Edition, v. 1.3, now includes a new version of the IDL-to-Java compiler, `idlj`. The `idlj` compiler replaces the `idltojava` compiler that was available as a separate download in previous releases. You can download the JavaTM 2 Platform, Standard Edition, v. 1.3 and visit Java IDL Documentation for more information on Java IDL in the 1.3 release.

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