public class AlbertaItemFactory implements ItemFactory
{
    final static float ALBERTA_TAX_RATE = (float) 0.07;

    public Item createItem (
	    String id,
	    String name,
	    int quantity,
	    float unitPrice
	)
    {
	AlbertaItem a = new AlbertaItem ();
	a. quantity = quantity;
	a. id = id;
	AlbertaItem. cat. put (id, name, (int) (unitPrice*100));
        return a;
    }
}