Packages

javax.servlet	The javax.servlet package contains a number of classes and interfaces that describe and define the contr acts between a servlet class and the runtime environment provided for an insta nce of such a class by a conforming servlet container.
javax.servlet.http	The javax.servlet.http package contains a number of classes and interfaces that describe and define the contr acts between a servlet class running under the HTTP protocol and the runtime e nvironment provided for an instance of such a class by a conforming servlet co ntainer.