public static void main(String[] args) {
   // The PlainPizza object is sent to the Mozzarella constructor
   // and then to the TomatoSauce constructor
   Pizza basicPizza = new TomatoSauce(new Mozzarella(new PlainPizza()));
   System.out.println("Ingredients: " + basicPizza.getDescription());
   System.out.println("Price: " + basicPizza.getCost());
 }
  public double getCost() {

    return tempPizza.getCost();
  }