Sun JDK Compiler

Sun provides a free compiler: JDK (Java Development Kit) that can be downloaded from the Web pages of Sun. ImageJ has a direct access to the JDK Compiler from the plugins menu.

Metrowerks CodeWarrior

CodeWarrior is a C, Pascal and Java compiler for several platforms. It provides a friendly integrated environment for the development of programs in these languages.
All the source code, libraries and auxilliary files are handled by what CodeWarrior calls a "project" (*.mcp) in c:\temp\ImageJ\plugins. The goal of this project is to keep track of the organization of all sort of dependencies between files. The project is provided for the exercise.