/** Here we actually have 2 programs:  this Writer, and then a Reader.
 *  Run this program first.  It will create a vector (list) of various
 *  shopping list items.  Then it will write the list into a file for
 *  later use by the other program.
 *  We are treating this list as a "persistent object", which means it
 *  can be used again after this program dies.
 */
import java.io.*;
import java.util.*;

public class Writer
{
  public static void main(String [] args) throws IOException,
                                                 FileNotFoundException
  {
    ObjectOutputStream out = new ObjectOutputStream
                            (new FileOutputStream("shoppinglist.txt"));

    Vector list = new Vector();
    
    list.add(new Item ("boat", 5000));
    list.add(new Item ("phone", 22));

    out.writeObject(list);
    out.close();
  }
}