Community Z Tools Project (CZT):
Tools for editing, typechecking and animating Z
specifications and related notations.
Includes a Java framework for building formal methods tools.
NOTE: development of CZT has now moved to GitHub:
https://github.com/community-z-users/czt
Repository has been moved to: http://dtitov.github.com/bracer
Java library for parsing and evaluating math expressions.
Javadoc is available at http://bracer.sourceforge.net/javadoc/
P.S. This library depends on Apache Commons Math, so don't forget to include commons-math-2.2.jar to your project.
Pagkalos is an interpreted language written in Java. It supports the lambda-calculus and object-oriented techniques. All statements are writeen in reversed polish notation. Java-classes, objects and methods are easily accessible with the dot-notation.