Is there is an API that allows you to compile from a java program? If not, is this possible from within a java application? And how can I monitor the output of the compilation? I am writing a program that gathers data and rules from databases, files and user inputs, and I need to create and compile class modules in order to handle the same type of data next time. Because there are new rules for each new data type I need to create the classes to handle them, compile, and save the class name to a database where the main programs use it in order to handle the data. Any help would be appreciated. Thanks, ER    More>>