Can't remove line item...

Question

I can successfully add products to my shopping cart. The problem is that I cannot remove them. My app consists of 2 beans and 2 jsp pages. One bean is just a setter/getter for a product (not show). The shopping cart bean is here:
package shoppingcart;
import java.util.ArrayList;
import java.util.Iterator;
import javax.servlet.*;
import javax.servlet.http.*;
public class CartBean extends HttpServlet {
private ArrayList items = new ArrayList();
public void addItem(OrderItem o) {
     items.add(o);
public void removeItem(OrderItem o) {
     items.remove(o);
public Iterator getContents() {
     System.out.println(items.size());
     return items.iterator();
}The product page (not shown) just sends a value for 'product' over to the shopping cart. With the code here, I get a variable o unknown.
<%@ page import="shoppingcart.OrderItem" %>
<%@ page import="shoppingcart.CartBean" %>
<jsp:useBean id="cart" class="shoppingcart.CartBean" scope="session"/>
<%
String action= request.getParameter("Action");
%>
<%
if (action.equals("addtocart")) {
String product = (String)request.getParameter("product");
System.out.println(product);
OrderItem o = new OrderItem();
o.setProduct(product);
cart.addItem(o);
if (action.equals("Remove"))
cart.removeItem(o);
%>
<%
     Iterator contents = cart.getContents();
     if (!contents.hasNext()) {
     out.println("<tr><td height=50><center>" + "You have no items to checkout" + "</center></td></tr>" );
     else {
     while (contents.hasNext()) {
     OrderItem o = (OrderItem)contents.next();
     %>
                      <tr class="text">
                        <td class="text"><%=o.getProduct() %> </td>
<td align="center"><input name="Action" type="submit" value="Remove"></td>
...Any suggestions on how I can remove an line item at a time?? Thanks!

Answer 1

If you upgrade a capex planning application through the upgrade wizard then the "Line Item" dimension will remain the same name, if you create a new application  then it will use the new options.
Cheers
John
http://john-goodwin.blogspot.com/