What is the Rolls-Royce way to deploy a Java applet?

I know how to deploy an applet using applet , object , embed tags and JavaScript , but I'm after the best approach (in terms of end user experience).

What can"t I do with a Java Applet?

Consider a Java applet running in browser such as Google Chrome. What am I unable to do in the applet?

Java applet AWT-EventQueue-1 Exception

I wrote a simple implementation of the Game of life with java applets. Here's is the source code for the Applet and the Model.