JEuclid
· JEuclid is a complete MathML rendering solution, consisting of a MathViewer
application, Command line converters from MathML to other formats, an ant
task for autmated conversion, Display components for AWT and Swing and a
component for Apache Cocoon
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 jeuclid-parent-3.1.9.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.