Copyright (c) SEMM NL All rights reserved.
Author : Paul Hamaker. Part of JavaLessons.com

The objects referred to by request and application are present by default.
request

points to an instance of a class implementing
javax.servlet.http.HttpServletRequest.

We use some of its methods in expressions.
application

refers to an instance of a class implementing
javax.servlet.ServletContext

and we call this method.

Other objects, also present by default :
- reponse,
    javax.servlet.ServletResponse
- session,
    javax.servlet.http.HttpSession
- out,
    javax.servlet.jsp.JspWriter
- page,
    java.lang.Object
- pageContext,
    javax.servlet.jsp.PageContext
- config,
    javax.servlet.ServletConfig

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Most objects are alive for one page only.