CGI programs are programs that actually execute on the web server, not on the client's computer. They retrieve data that was sent from user input, manipulate it, and return a message to the browser. CGI programs can be written in almost any computer programming language, as long as that language will execute on the server that it resides. JAVA is a programming language whose claim to fame is that it can be executed on many different platforms and operating systems. JAVA is code that is downloaded and executed on the client side as opposed to CGI programs which are executed on the server side.
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