This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Your servlet inherits the getServletConfig() method from GenericServlet. This statement gets the ServletConfig object for this instance and calls getServletContext() to get the ServletContext object - that is the context that all servlets in your application operate under. Finally the getRequestDispatcher method of ServletContext is called to get the associated RequestDispatcher. RequestDispatcher has a forward method which is called. Bill