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sendPage(response,adderSession);
}
private void sendPage(HttpServletResponse reply,
HttpSession session) throws IOException
{
String userName,foreColour,backColour,sum;
userName = (String)session.getValue("name");
foreColour =
(String)session.getValue("foreColour");
backColour =
(String)session.getValue("backColour");
/*
Value of 'sum' originally saved as instance of
class Integer (and saved as instance of class
Object in session object), so we cannot typecast
into class String as done for three values above.
Instead, we use method toString of class
Object…
*/
sum = session.getValue("sum").toString();
reply.setContentType("text/HTML");
PrintWriter out = reply.getWriter();
out.println("<HTML>");
out.println("<HEAD>");
out.println("<TITLE>Result</TITLE>");
out.println("</HEAD>");
out.println("<BODY TEXT=" + foreColour
+ " BGCOLOR=" + backColour + ">");
out.println("<CENTER>");
if (!userName.equals(""))
out.println("<H2>" + userName + "'s "
+ "Result</H2>");
out.println("<BR><BR><BR><H3>" + sum + "</H3>");
out.println("</CENTER>");
out.println("</BODY>");
out.println("</HTML>");
out.fl ush();
}
private void retrieveNewPreferences(
HttpServletRequest request,
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