Java EE (Java Enterprise Edition) General Discussion

Hi,

JSP and Servlet are new to me. I am running j2sdk1.4.2 on my desktop and have problem with compiling the program. It returned messages during compilation:

"Cannot access class javax.servlet.http.HttpServletRequest, neither class nor source found for javax.servlet.http.HttpServletRequest at line 2, column 27"
"class HttpServletRequest not found in class ShoppingCart at line 34, column 30"

This is the code of my first Servlet:

import java.util.Vector;
import javax.servlet.http.HttpServletRequest;
public class ShoppingCart extends Object {
private Vector cart = null;
String product = null;
String submit = null;
public ShoppingCart() {
cart = new Vector();
}
public void setProduct(String product) {
this.product = product;
}
public void setSubmit(String submit) {
this.submit = submit;
}
public Vector getProducts() {
return cart;
}
public void addProduct(String product) {
cart.add(product);
}
public void removeProduct(String product) {
cart.remove(product);
}
public void processRequest(HttpServletRequest req) {
if (submit != null) {
if (submit.equals("add")) {
addProduct(product);
} else {
removeProduct(product);
}
reset();
}
}
public void reset() {
submit = null;
product = null;
}
}

Thanks!