import javax.servlet.*; 
import javax.servlet.http.*; 
import java.io.*; 

public class One extends HttpServlet {
  public void doGet(HttpServletRequest request, 
                    HttpServletResponse response) throws ServletException,
                                                         IOException {
    response.setContentType("text/html"); 
    HttpSession session = request.getSession(); // equivalent to session_start();
    PrintWriter out; 
    out = response.getWriter(); 
    String message = (String) session.getAttribute("message"), 
           counter = (String) session.getAttribute("counter"); 
    if (message == null) {
      counter = "1"; 
      message = "Welcome, you called me " + counter + " time."; 
    } else {
      counter = (Integer.parseInt(counter) + 1) + ""; 
      message = "This is your " + counter + "th call.";       
    }
    session.setAttribute("counter", counter); 
    session.setAttribute("message", message); 
    out.println( new java.util.Date() + "<p>" + message ); 
  }
}