The Batjac Java IDE
Batjac is a Java IDE, written in Java (open source), and patterned after the Smalltalk IDEs in that it has code browsers, inspectors, workspaces, and sophisticated querying of source code.
JCreator is a powerful Free IDE for Java. Providing the user with a wide range of functionality.
Decaf Java Editor
With Decaf, you can write, compile, run, run in the appletviewer, and run in your browser your applets AND, Decaf will generate the HTML file with a custom APPLET tag all from with the same program!
The Java 2 Platform
Provides cross-platform compatibility, safe network delivery, and smartcard to supercomputer scalability. It provides software developers with a platform for rapid application development, making it possible to deliver products to market in Internet time.
The AMY project
The Amy project is a GPL project whose purpose is to give a multi language IDE for all platforms. It is written in Java.
WebFlex's primary purpose is to format Netscape and Microsoft compatible scripts that give your webpages more functionality.
Enables enterprise customers to direct Java applets or JavaBeans components on their intranet web pages to run using Sun's Java Runtime Environment (JRE) instead of the web browser's default virtual machine.
Write your Java projects in a comfortable editor, compile and run them instantaneously by clicking on a toolbar button. You can access all your classes, interfaces, methods of your project by clicking on a tree view that hierarchically represents you project.