AppletViewer
Appearance
Appletviewer is a standalone, command line program from Sun to run Java applets. appletviewer is generally used by developers for testing their applets before being deployed to a web site.
You can download the java appletviewer with the JDK (Java Development Kit) from The Java Website at the Download Page.
A fuller description of the appletviewer and its basic usage can be found at the java tools documentation page.