Java Dice-Rolling Package parses dice-rolling expressions, generating an expression tree that can be invoked to compute the results of the roll. Expressions include best(3,4D6) (roll 4 6-sided dice and take the highest 3 dice, a common method for generating statistics in the D20 role-playing system).
The Lightweight Java Game Library is a native binding for OpenGL and OpenAL written with game developers in mind. It allows the full OpenGL and OpenAL APIs to be exposed without the penalties associated with competing methods, nor the limitations of APIs such as Java3D. Tutorials and demos are available, and Windows, Linux, and Mac OS X are supported.
JASA is a high-performance auction simulator. It is designed for performing experiments in agent-based computational economics. It implements variants of the double-auction market, which is commonly used to run real-world market places such as stock exchanges. It is designed to be highly extensible so that other types of auctions can easily be implemented. The software also provides a base classes for implementing simple adaptive trading agents.
Java Tiny Gfx Library (JTGL) is a graphic foundation framework (a graphics/gaming API) that will allow easy deployment/porting of applications/games on many environments: AWT, Swing, J2ME (MIDP 1&2, Nokia, and Siemens), SuperWaba (PalmOS, PPC, and Symbian), ExEn, DoJa, and others.