Some basic demos to get you started. A large range of demo applications is
available for download (including source code) with the JFreeChart Developer
Guide. For more information, see:
Event classes and listener interfaces, used to provide a change
notification mechanism so that charts are automatically redrawn
whenever changes are made to any chart component.
Utility classes used by JFreeChart. Some of these will be candidates for addition to JCommon, but we keep them here so that our dependency is only JCommon 1.0.0 or later.