Foobar is a slang term used in the IT world as a placeholder to refer to generic examples or temporary files or programs that are to be deleted. The technical term for a word like foobar is a metasyntactic variable. These types of terms are used to name variables, programs or other parts of code.
A Web component is a server-side object used by a Web-based client (browsers) to interact with J2EE applications. Web components come in two types:
A Web browser interacts with a J2EE application via the Java Servlet and JavaServer Pages Web components. However, Web component development and execution processes differ from typical stand-alone Java classes.
The Web container - the environment where Web components are executed - also provides services required for execution. If a Web component is executed by a Web container, the component must first be deployed in a Web container.
There are four basic steps involved in Web component development and execution:
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