Presently, two such tests exists. One calls a cgi executable, which here is C code that invokes the skeleton of a command line oriented program. This skeleton cgi setup might prove useful for some simple needs. Click here. Things work at livins.org, but not from the server at WWU.
The other is a test of Java coding methods. The following button will initiate a window from a Java applet. It tests a few simple user interface elements of Java programming. Presently, there appear to be some minor problems when using Netscape on a Microsoft platform. And, you need to have a sufficiently updated Java plug-in if the applet is to work on Microsoft Internet Explorer at all.