You can also run it via webstart : click here
Author's website : click here

History:

Cube-J started just as any other simple notepad. Since then It was develop and it became an IDE. It's an IDE
purely made in Java with a vision to tell the world that Java can be fast as any windows application.

Cube-J is still under development stage, a project made specially for students who wants to know how to
program in java in a fast and simple way. Any Java Developer will surely appriciate it's easy to use features.
Like any Java IDE's in the market Cube-J provides basic functionalities that you can find in any IDE's.

Features:

Editor, Line Number, Line Highlight, Keyword Coloring, Auto Indent, Auto Bracket, Compile,
File Explorer,Console, Docking and many more . . .

Links: