What is meant by JSP implicit objects and what are they?

JSP implicit objects are pre-defined Java objects that the JSP (JavaServer Pages) container automatically makes available to developers within a JSP page. These objects are created during the translation phase of a JSP page to a servlet, which means they are ready to be used directly within the JSP without needing explicit instantiation or declaration[1][2][3][6][7][8][10].

There are nine standard JSP implicit objects, each serving a specific purpose and providing different functionalities related to the web application environment:

1. out: An instance of javax.servlet.jsp.JspWriter used to output content to the client's browser[1][2][5].
2. request: An instance of javax.servlet.http.HttpServletRequest that encapsulates all the information of a client's request, including parameters, headers, and cookies[1][2][6].
3. response: An instance of javax.servlet.http.HttpServletResponse used to control the response sent to the client, such as setting headers and redirecting to other resources[1][2][4].
4. session: An instance of javax.servlet.http.HttpSession that allows data to be maintained across multiple user requests within a session[1][2][3].
5. application: An instance of javax.servlet.ServletContext that represents the web application's context and allows sharing of data among all components of the application[1][2][3].
6. config: An instance of javax.servlet.ServletConfig that provides configuration information for the servlet[1][2][5].
7. pageContext: An instance of javax.servlet.jsp.PageContext that provides access to all the namespaces associated with a JSP page...