J is a modern, high-level, general-purpose, high-performance programming language. J is particularly strong in the mathematical, statistical, and logical analysis of data. It is a powerful tool in building new and better solutions to old problems and even better at finding solutions where the problem is not already well understood.
-an integrated development environment
-standard libraries, utilities, and packages
-a form designer for your application forms
-an event-driven graphical user interface to your application
-interfaces with other programming languages and applications
-integrated 2d and 3d graphics
-memory mapped files for high performance data applications