passing hidden forms problem

Hi guys, I am new to servlets- jsp and I have been trying to write a session track problem but I have some trouble in passing hidden form "names" to servlet.
No matter which item I choose from drop down list , I always see the first item in the orderpage which is first item in ddlist or I get "No items ..." message. I may need a small iteration in OrderPage servlet that will take "names" of hidden forms but I could not figure out how to do it .
I am sending ddlist page and order page , if you have any idea or if you see something wrong , I'd love to hear it..

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

public class ddlist extends HttpServlet {
		public void doGet(HttpServletRequest request,HttpServletResponse response)
		throws ServletException, IOException {
				response.setContentType("text/html");
				PrintWriter out = response.getWriter();
				String title = "Assignment3";
				out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
				"Transitional//EN\">\n" + "<BODY BGCOLOR=\"#FDF5E6\">\n" +
				"<H1 ALIGN=CENTER>" + title + "</H1>\n" + "<table BORDER=1 >\n" + "<tr >\n" );
				
				String formURL = "/servlet/coreservlets.OrderPage";
				Enumeration paramNames = request.getParameterNames();
				while(paramNames.hasMoreElements()) {
					String paramName = (String)paramNames.nextElement();
					if(paramName.equals("books")){
						out.println("<FORM ACTION=\"" + formURL + "\">\n" +
								"<br>" +  "Select a Book and Click the button" + "<br>" +
								
								"<select>" + "<option>" + Catalog.items[0].getShortDescription()+  "</option>" + 
											 "<option>" + Catalog.items[1].getShortDescription() + "</option>" +
											 "<option>" + Catalog.items[2].getShortDescription() + "</option>" + 
											 	"</select>" + "<br>" +
											 	"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID1\" " + " VALUE=\"" + Catalog.items[0].getItemID() + "\">\n" +
												"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID2\" " + " VALUE=\"" + Catalog.items[1].getItemID() + "\">\n" +
												"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID3\" " + " VALUE=\"" + Catalog.items[2].getItemID() + "\">\n" +	
									            "<INPUT TYPE=\"SUBMIT\" " +  "VALUE=\"Add to Shopping Cart\">\n" + 
									            	"</CENTER>\n<P>\n</FORM>");
						break;
					}
					if(paramName.equals("music")){
						out.println("<FORM ACTION=\"" + formURL + "\">\n" +
								"<br>" + "Select an Album and Click the button" + "<br>" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID4\" " + " VALUE=\"" + Catalog.items[3].getItemID() + "\">\n" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID5\" " + " VALUE=\"" + Catalog.items[4].getItemID() + "\">\n" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID6\" " + " VALUE=\"" + Catalog.items[5].getItemID() + "\">\n" +
								"<select>" + "<option>" + Catalog.items[3].getShortDescription() + "</option>" + 
											 "<option>" + Catalog.items[4].getShortDescription() + "</option>" + 
											 "<option>" + Catalog.items[5].getShortDescription() + "</option>" + 
										     "</select>" + "<br>" +
										     	 "<INPUT TYPE=\"SUBMIT\" " +  "VALUE=\"Add to Shopping Cart\">\n" +
										     	"</CENTER>\n<P>\n</FORM>");
						break;
					}
					if(paramName.equals("videos")){
						out.println("<FORM ACTION=\"" + formURL + "\">\n" +
								"<br>" + "Select a Movie and Click the button" + "<br>" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID7\" " + " VALUE=\"" + Catalog.items[6].getItemID() + "\">\n" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID8\" " + " VALUE=\"" + Catalog.items[7].getItemID() + "\">\n" +
								"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID9\" " + " VALUE=\"" + Catalog.items[8].getItemID() + "\">\n" +
								"<select>" + "<option>" + Catalog.items[6].getShortDescription() + "</option>" + 
											 "<option>" + Catalog.items[7].getShortDescription() + "</option>" + 
										     "<option>" + Catalog.items[8].getShortDescription()+ "</option>" + 
										     "</select>" + "<br>"  + 
										     "<INPUT TYPE=\"SUBMIT\" " +  "VALUE=\"Add to Shopping Cart\">\n" +
										     "</CENTER>\n<P>\n</FORM>");
						
						break;
					}
				}
				out.println("<A >Proceed to Checkout</A>" + "<br>" +
											   "<A >Home Page</A>");
			
		}
		
		public void doPost(HttpServletRequest request,
				HttpServletResponse response)
						throws ServletException, IOException {
					doGet(request, response);
					}
		
	}

-------------------------------------------------------------------------------OrderForm------------------------------------------------------------------------------------

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

public class OrderPage extends HttpServlet {
  public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
      throws ServletException, IOException {
    HttpSession session = request.getSession();
    ShoppingCart cart;
    synchronized(session) {
      cart = (ShoppingCart)session.getAttribute("shoppingCart");
      
      if (cart == null) {
        cart = new ShoppingCart();
        session.setAttribute("shoppingCart", cart);
      }
      String itemID = request.getParameter("itemID");
      if (itemID != null) {
        String numItemsString =
          request.getParameter("numItems");
        if (numItemsString == null) {
          
          cart.addItem(itemID);
        } else {
         
          int numItems;
          try {
            numItems = Integer.parseInt(numItemsString);
          } catch(NumberFormatException nfe) {
            numItems = 1;
          }
          cart.setNumOrdered(itemID, numItems);
        }
      }
    }
    // Whether or not the customer changed the order, show
    // order status.
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    String title = "Status of Your Order";
    String docType =
      "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
      "Transitional//EN\">\n";
    out.println(docType +
                "<HTML>\n" +
                "<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" +
                "<BODY BGCOLOR=\"#FDF5E6\">\n" +
                "<H1 ALIGN=\"CENTER\">" + title + "</H1>");
    synchronized(session) {
      List itemsOrdered = cart.getItemsOrdered();
      if (itemsOrdered.size() == 0) {
        out.println("<H2><I>No items in your cart...</I></H2>");
      } else {
       
        out.println
          ("<table BORDER=1 >\n" +
           "<tr >\n" +
           "  <th>Item ID<th>Description\n" +
           "  <th>Unit Cost<th>Number<th>Total Cost");
        ItemOrder order;
        
        NumberFormat formatter =
          NumberFormat.getCurrencyInstance();

for(int i=0; i<itemsOrdered.size(); i++) {
          order = (ItemOrder)itemsOrdered.get(i);
          out.println
            ("><tr>\n" +
             "  <td>" + order.getItemID() + "\n" +
             "  <td>" + order.getShortDescription() + "\n" +
             "  <td>" +
             formatter.format(order.getUnitCost()) + "\n" +
             "  <td>" +
             "<FORM>\n" +  // Submit to current URL
             "<INPUT TYPE=\"HIDDEN\" NAME=\"itemID\"\n" +
             "       VALUE=\"" + order.getItemID() + "\">\n" +
             "<INPUT TYPE=\"TEXT\" NAME=\"numItems\"\n" +
             "       SIZE=3 VALUE=\"" + 
             order.getNumItems() + "\">\n" +
             "<SMALL>\n" +
             "<INPUT TYPE=\"SUBMIT\"\n "+
             "       VALUE=\"Update Order\">\n" +
             "</SMALL>\n" +
             "</FORM>\n" +
             "  <td>" +
             formatter.format(order.getTotalCost()));
        }
        String checkoutURL =
          response.encodeURL("../Checkout.html");
        // "Proceed to Checkout" button below table
        out.println
          ("</table>\n" +
           "<FORM ACTION=\"" + checkoutURL + "\">\n" +
           "<BIG><CENTER>\n" +
           "<INPUT TYPE=\"SUBMIT\"\n" +
           "       VALUE=\"Proceed to Checkout\">\n" +
           "</CENTER></BIG></FORM>");
      }
      out.println("</BODY></HTML>");
    }
  }
}

I see "itemID1" etc in the hidden field names - you are asking for "itemID" which does not appear to exist.

Bill

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Even thought I write "itemID1" in the orderform , I can not get "ItemID2".
The problem is How can I iterate "itemID " such that when I choice ,for instance ItemID6 , I get the ItemID6 ?