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Sun Certification Training Guide (310-025, 310-027): Java™ 2 Programmer and Developer Exams by Jamie Jaworski

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Web-Related Classes

In addition to providing the basic TCP- and UDP-based sockets used by almost all Internet client/server applications, the java.net package provides a useful set of classes that support higher-level, web-specific applications. These classes are centered on the URL class, which encapsulates an object on the web—typically a web page—by its URL address.

A uniform resource locator (URL) provides a uniform way to locate resources on the Web. Different types of URLs are used with different application protocols, the most common of which are the Hypertext Transfer Protocol (HTTP) and the File Transfer Protocol (FTP). URLs for these types of protocols are mainly used to identify the location of files, such as web pages, supporting ...

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