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Cannot Resolve Symbol & my file uses or overrides deprecated API errors

Donna Harrington
Ranch Hand

Joined: Aug 08, 2003
Posts: 31
Hey everybody,
I hope somebody can help me.I am trying to create an online shopping cart that uses sessions. So i have a servlet side and a class Product and the client side 'ShopCart'. I have 2 errors..one is in the ShopCart.jsp file where it cannot resolve symbol 'class Product' and the other error is ShopCart.jsp uses or overrides deprecated API.
Here is ShopCart which is -->

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import = "java.sql.*"%>
<%@page import = "java.io.*"%>
<%@page import = "java.util.Properties"%>
<%@page import = "java.io.InputStream"%>
<%@page session = "true"%>
<%@page import = "java.util.*"%>

<%
Vector buylist = (Vector) session.getValue("shopping.shoppingcart");
if (buylist != null && (buylist.size() > 0)) {
%>
<center>
<table border="0" cellpadding="0" width="100%" bgcolor="#FFFFFF">
<tr>
<td><b>ProductId</b></td>
<td><b>Product Name</b></td>
<td><b>Price</b></td>
<td><b>Quantity</b></td>
<td></td>
</tr>
<%
for (int index=0; index < buylist.size();index++) {
Product anOrder = (Product) buylist.elementAt(index);
%>
<tr>
<td><b><%= anOrder.getProductId() %></b></td>
<td><b><%= anOrder.getPName() %></b></td>
<td><b><%= anOrder.getPrice() %></b></td>
<td><b><%= anOrder.getQuantity() %></b></td>
<td>
<form name="deleteForm"
action="C:\Documents and Settings\HarringtonD\.netbeans\3.6\sampledir\WEB-INF\classes\com\mycompany\ShoppingServlet"
method="POST">
<input type="submit" value="Delete">
<input type="hidden" name= "delindex" value='<%= index %>'>
<input type="hidden" name="action" value="DELETE">
</form>
</td>
</tr>
<% } %>
</table>
<p>
<form name="checkoutForm"
action="C:\Documents and Settings\HarringtonD\.netbeans\3.6\sampledir\WEB-INF\classes\com\mycompany\ShoppingServlet"
method="POST">
<input type="hidden" name="action" value="CHECKOUT">
<input type="submit" name="Checkout" value="Checkout">
</form>
</center>
<% } %>

Here is my class Product -->

package shopping.Product;
public class Product {
String productId;
String PName;
float price;
int quantity;


/** Creates a new instance of Product */
public Product() {
productId="";
PName="";
price=0;
quantity=0;

}

public void setProductId(String title){
productId=title;
}
public String getProductId(){
return ProductId;
}
public String getPName(){
return PName;
}
public void setPrice(float p){
price=p;
}
public void setQuantity(){
return quantity;
}
}

And Finally Here is my Servlet -->

package shopping.Product;

import java.io.*;
import java.net.*;
import java.util.*;

import javax.servlet.*;
import javax.servlet.http.*;

/**
*
* @author HarringtonD
* @version
*/
public class ShoppingServlet extends HttpServlet {
public void init(ServletConfig conf) throws ServletException {
super.init(conf);
}
public void doPost (HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
HttpSession session = req.getSession(false);
if (session == null) {
res.sendRedirect("http://localhost:8084/sampledir/errorCart.html");
}
Vector buylist=
(Vector)session.getValue("shopping.shoppingcart");
String action = req.getParameter("action");
if (!action.equals("CHECKOUT")) {
if (action.equals("DELETE")) {
String del = req.getParameter("delindex");
int d = (new Integer(del)).intValue();
buylist.removeElementAt(d);
} else if (action.equals("ADD")) {
//any previous buys of same cd?
boolean match=false;
Product aProduct = getProduct(req);
if (buylist==null) {
//add first cd to the cart
buylist = new Vector(); //first order
buylist.addElement(aProduct);
} else { // not first buy
for (int i=0; i< buylist.size(); i++) {
Product prod = (Product) buylist.elementAt(i);
if (prod.getProductId().equals(aProduct.getProductId())) {
prod.setQuantity(prod.getQuantity()+aProduct.getQuantity());
buylist.setElementAt(prod,i);
match = true;
} //end of if name matches
} // end of for
if (!match)
buylist.addElement(aProduct);
}
}
session.putValue("shopping.shoppingcart", buylist);
String url="http://localhost:8084/sampledir/ShopCart.jsp";
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher(url);
rd.forward(req, res);
} else if (action.equals("CHECKOUT")) {
float total =0;
for (int i=0; i< buylist.size();i++) {
Product anOrder = (Product) buylist.elementAt(i);
float price= anOrder.getPrice();
int qty = anOrder.getQuantity();
total += (price * qty);
}
total += 0.005;
String amount = new Float(total).toString();
int n = amount.indexOf('.');
amount = amount.substring(0,n+3);
req.setAttribute("amount",amount);
String url="http://localhost:8084/sampledir/checkout.jsp";
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher(url);
rd.forward(req,res);
}
}
private Product getProduct(HttpServletRequest req) {
String myProduct = req.getParameter("Product");
String qty = req.getParameter("qty");
StringTokenizer t = new StringTokenizer(myProduct,"|");
String productId= t.nextToken();
String PName = t.nextToken();
String price = t.nextToken();
price = price.replace('$',' ').trim();
Product prod = new Product();
prod.setProductId(productId);
prod.setPName(PName);
prod.setPrice((new Float(price)).floatValue());
prod.setQuantity((new Integer(qty)).intValue());
return prod;
}
}


I hope somebody can help me., I cant see these erros..sorry about all the code. thanx.
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61769
    
  67

Donna, 2 things up front:

1) Please use the UBB code tags to enclose any code you post. That way, the formatting will be preserved, making the code easier for all to read.

2) When reporting errors, it's vital to show the errors as they are reported. Just saying "the other error is ShopCart.jsp uses or overrides deprecated API" doesn't tell us anything that we can use to help you.

Now, with regards to the "cannot resolve symbol" error, I cannot see in your JSP where you import the Product class. If you don't import the Product class, the JSP, just like any other Java class, will not find it.


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