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Java rich Internet application (RIA) technology is getting increasingly sophisticated. New features are being added in every release of the Java Runtime Environment (JRE) software. This quick reference helps you keep up with the vibrant technology and implement RIA solutions that work elegantly on all versions of the client JRE software. The quick reference provides information about significant capabilities added in each version of the JRE software starting with the Java SE 6 update 10 release.

Applets

Java SE 7

• Dragged Applet Window Decoration: The window of a dragged applet can be decorated with a default or custom title by specifying the decorated and java_dragged_applet_title parameters.

Java SE 6 update 21

• Customized loading progress indicator: Customized loading progress indicator can access applet context and invoke JavaScript code in parent web page.

Java SE 6 update 18

• Customized loading progress indicator: Customized loading progress indicator can be displayed in a top level window or applet container.

Java SE 6 update 10

• Java Network Launch Protocol (JNLP) Support: The next generation Java Plug-in enables applets that can be deployed by using JNLP and can access JNLP API.
• Draggable applet: Applets can be dragged out of the browser if specified as "draggable".
• Splash screen: Custom splash screen displayed if specified.

Java Web Start Applications

JNLP support has been the foundation of Java Web Start applications since the inception of this technology.

Java SE 7

• Operating systems: The os attribute in the information and resources elements can now contain specific versions of Windows, such as Windows Vista or Windows 7.
• Installed applications: The JNLP specification now supports a install attribute in the shortcut element so applications can indicate their desire to be installed. Installed applications are not removed when the Java Web Start cache is cleared, but can be explicitly removed using the Java Control Panel.
• Java Web Start applications can be deployed without specifying the codebase attribute in the JNLP file.

Java SE 6 update 18

• Customized loading progress indicator: Customized loading progress indicator can be displayed in a top level window. Default splash screen is never displayed. Custom splash screen displayed when loaded from cache.

Resources

• Java Rich Internet Applications Development and Deployment in Java SE developer guide
• Deployment trail in the Java Tutorials