import javax.swing.*;

/* SortedListModel.java replaces the default list model with one
 * that keeps the list is sorted order.
 *
 * Written by: Stuart Hansen
 * September 8, 2008
 */
public class SortedListModel extends DefaultListModel
{
   // We override addElement in the DefaultListModel class
   // so that the JList remains sorted.
   // Note that in a more complete application, add()
   // set() and setElementAt() should also be overridden.
   public void addElement(Object obj)
   {
       String str = obj.toString();
	   int index = getSize();
	   while (index > 0 && ((String)elementAt(index-1)).compareTo(str) >=0)
	   {
		   index--;
	   }
	   super.add(index, obj);
   }
}