Summary
Networking has many applications of which your programs can make use. You might not have realized it, but the GetFile project was a rudimentary Web browser. It brought a Web page's text into a Java program and displayed it. Of course, the HTML parsing is what turns a bunch of markup tags into a real Web page. Sun wrote an entire Web browser in Java—HotJava.
Today you learned how to use URLs, URL connections, and input streams in conjunction to pull data from the World Wide Web into your program.
You created a socket application that implements the basics of the finger protocol, a method for retrieving user information on the Internet.
You also learned how client and server programs are written in Java and how a server program makes connections ...
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