Servlets and JSPs: Lab 3

public class CartItem {
  private String item;
  private float price;
  private int qty;
  public String getItem() {
     return item;
   }
  public void setItem(String item) {
     this.item = item;
   }
  public float getPrice() {
     return price;
   }
  public void setPrice(float price) {
     this.price = price;
   }
  public int getQty() {
     return qty;
   }
  public void setQty(int qty) {
     this.qty = qty;
   }
  public void setQty(String qty) {
     this.qty = new Integer(qty).intValue();
   }
  public void setPrice(String price) {
        this.price = new Float(price).floatValue();
    }


}

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletException;
import javax.servlet.RequestDispatcher;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;
import java.util.Iterator;


public class AddItem extends HttpServlet {

  public void doGet(HttpServletRequest request,
                    HttpServletResponse response) 
              throws ServletException, IOException {


    String item = request.getParameter("item");
    String price = request.getParameter("price");
    String qty = request.getParameter("qty");
      if ((qty == null)||(qty.length()<1)) {
        ServletContect sc = this.getServletContext();
        RequestDispatcher rd = sc.getRequestDispatcher("/products.html");
        rd.forward(request, response);
        return;
       }

    CartItem ci = new CartItem();
     ci.setItem(item);
     ci.setPrice(price);
     ci.setQty(qty);
    HttpSession session = request.getSession();
    Vector v = (Vector)session.getAttribute("cart");
      if (v == null) {
        v = new Vector();
      }
     v.add(ci);

    for (Iterator iterator = v.iterator(); iterator.hasNext();) {
      CartItem cartItem = (CartItem) iterator.next();
        System.out.println(cartItem.getItem());
     }

   session.setAttribute("cart", v);


   response.setContentType("text/html");
   PrintWriter out = response.getWriter();
     out.println(item);
     out.println(price);
     out.println(qty);
     out.close();
  }
}