PrintWriter out=new PrintWriter(opt);
out=response.getWriter();
response.setContentType("text/html");
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(opt);
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();