The source code provided with demos for the JDK is meant

to illustrate the usage of a given feature or technique and has been

deliberately simplified. Additional steps required for a

production-quality application, such as security checks, input

validation, and proper error handling, might not be present in the

sample code.

In some cases, the default security settings may block an execution

of demo applets in a browser. To adjust the security settings, please

refer to the following resource:

http://java.com/en/download/help/java_blocked.xml

Some demo applets need to be accessed through the HTTP or HTTPS

protocols to enable access to the required resources.