Complete the following Servlet codes to store the information read from the input form to session object.

public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String topic = req.getParameter(?topicName?); 1 mark
String comment = req.getParameter(?commentText?);

//Complete the code to store the topic and comment into session scope and

// make it available other Servlets or JSPs
}