public class Topping
{
  public static final String CHEESE_TOPPING      = "CHEESE";
  public static final String BLACK_OLIVE_TOPPING = "BLACK_OLIVE";
  public static final String GREEN_OLIVE_TOPPING = "GREEN_OLIVE";
  public static final String PEPPERONI_TOPPING   = "PEPPERONI";
  public static final String SAUSAGE_TOPPING     = "SAUSAGE";
  public static final String MUSHROOM_TOPPING    = "MUSHROOM";
  public static final String ONION_TOPPING       = "ONION";

}