/** ItemComparator.java - To sort items, we need to be able to compare 
 *  any 2 objects of the Item class.  We'll assume it's just based on 
 *  alphabetical order, so we'll use the String class compareTo() method.
 */
import java.util.Comparator;

public class ItemComparator implements Comparator
{
  public int compare(Object a, Object b)
  {
    String name1 = ((Item) a).toString();
    String name2 = ((Item) b).toString();
    return name1.compareTo(name2);
  }
}