JPAZ2 archetypes - Project for apprentices.
· An archetype which contains a sample Java project with launcher. The launcher instantiates WinPane, SmartTurtle (extending Turtle), and ObjectInspector.
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 jpaz2-archetype-quickstart-1.1.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.