Intro to the NetBeans IDE
The foundation for Sun’s development environment (Sun ONE Studio or something to that effect) is NetBeans (formerly known as Forte for Java) an Open Source development environment focused on Java.
Here is what they say:
The NetBeans IDE is a development environment – a tool for programmers to write, compile, debug and deploy programs. It is written in Java – but can support any programming language. It is a free product with no restrictions on how it can be used.