Frank Thanks for explaining what E-commerce is all about. But I'm still confused a little bit. When you say Amazon, Barnes and Noble use servlets or server- side programming. I have the following questions. 1> Does that servlet use classes,objects and methods like in applets or GUI programming.? 2> Suppose I want to specialise in Server-side programming and JDBC what all do i need to know. Do i need to know applet programming with all classes, objects, methods, inner classes etc. 3> What is the difference between an applet and a servlet.
1) yes. 2) You don't need to know about applets, but you would be wise to know about inner classes. 3) An applet runs on a browser. A servlet runs on a servlet server (usually hooked up to a web server).