cartteast.java

一本关于JBuilder 应用开发的书籍,希望大家喜欢,其实我没看过的,

package statefulsession;

import javax.rmi.PortableRemoteObject;
import javax.naming.*;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Calendar;
import java.util.Enumeration;
import java.lang.NullPointerException;
import java.rmi.RemoteException;
import java.rmi.ServerException;
import javax.naming.NameNotFoundException;





public class CartTest
{

  public CartTest()
  {
  }
  public static void main(String[] args)
  {
    try
    {
      Context ctx= new InitialContext();
      Object ref = ctx.lookup("Cart") ;
      CartHome cartHome = (CartHome) PortableRemoteObject.narrow(ref, CartHome.class);
      Cart cart;
      String cardHolderName = "Jack B. Quick";
      String creditCardNumber = "1234-5678-9012-3456";
      Date expirationDate = new GregorianCalendar(2003, Calendar.JULY,1).getTime();
      cart = cartHome.create(cardHolderName, creditCardNumber, expirationDate);
      Item knuthBook1 = new Item("The Art of VB.net", 49.95f);
      Item knuthBook2 = new Item("The Art of C#", 49.95f);
      cart.addItem(knuthBook1);
      cart.addItem(knuthBook2);
      summarize(cart);
      cart.removeItem(knuthBook2);
      summarize(cart);
      cart.purchase();
      cart.remove();
      System.out.println("OK");
      cartHome=null;
      ref=null;
      ctx=null;
    }
      catch (Exception ee)
      {
       System.out.println("error!"+ee) ;
      }
  }
  static void summarize(Cart cart) throws Exception
  {
    System.out.println("======== Cart Summary =========");
    Enumeration elements = cart.getContents();
    while(elements.hasMoreElements())
    {
        Item current = (Item) elements.nextElement();
        System.out.println("Price: $" + current.getPrice() + "\t" + current.getClass().getName() + " title: " + current.getTitle());
    }
    System.out.println("Total: $" + cart.getTotalPrice());
    System.out.println("===============================");
  }

}