FlipView Library
· If you have a need to have a UI component which will act similar to toggle button or be like a view group with state checked/unchecked this is a right place for you.
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 library-1.0.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.