Answer Posted / sunny

1. forward should be called before the response has been
committed to the client.

public class Dispatcher extends HttpServlet {
public void doGet(HttpServletRequest req,
HttpServletResponse res) {
RequestDispatcher dispatcher =
request.getRequestDispatcher
("/template.jsp");
if (dispatcher != null) dispatcher.forward
(request, response);
}
}

2. Includes the content of a resource (servlet, JSP page,
HTML file) in the response.

public class Dispatcher extends HttpServlet {
public void doGet(HttpServletRequest req,
HttpServletResponse res) {
RequestDispatcher dispatcher =
getServletContext
().getRequestDispatcher("/banner");
if (dispatcher != null) dispatcher.include
(request, response);
}
}

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