ServletContextInterface defines methods that a servlet can use to communicate to the Container.
ServletContext Parameters are specified for entire application and are available for all servlets.
ServletContext is also calledapplication object.
ServletContext is used to obtain information about environment on which a servlet is running.
There is one instance object of the ServletContext interface associated with each Web application deployed into a container.
In cases where the container is distributed over many virtual machines, a Web application will have an instance of the ServletContext for each JVM.
Servlet Context is a grouping under which related servlets run. They can share data, URL namespace, and other resources. There can be multiple contexts in a single servlet container.