jCharts
· jCharts is a 100% Java based charting utility that outputs a variety of charts. This package has been
designed from the ground up by volunteers for displaying charts via Servlets, JSP's, and Swing apps. First
release was in December 2000.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window jcharts-0.7.5.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.