[appendix]
== Support Content

This appendix provides generic information about the classes and
material that are used in this reference documentation.

=== Classes Used in This Document

The following listings show the classes used throughout this reference guide:

====
[source,java,indent=0]
----
include::samples/States.java[tags=snippetA]
----

[source,java,indent=0]
----
include::samples/States2.java[tags=snippetA]
----

[source,java,indent=0]
----
include::samples/States3.java[tags=snippetA]
----

[source,java,indent=0]
----
include::samples/Events.java[tags=snippetA]
----
====
