Java Fuzzy Logic
JFuzzy is a fuzzy logic library in java that facilitates the developmentof fuzzy inference systems. It supports the use of Fuzzy Control Language (FCL), and works with JEvolve to automatically generate fuzzy inference systems and controllers.
Building a fuzzy controller requires creation of a RuleBase, and then adding rules to the RuleBase. A rule is composed of conditions for firing the rule and conclusions that result from firing the rule. Conditions may be complex and constructed using And and Or operators. In addition, input/output variables and their membership functions determine the degree to which conditions are satisfied. For a more detailed tutorial, consult one of the many excellent ones on fuzzy logic available on the internet.