// DrJava saved history v2
Pizza boring = new Pizza();
boring.getEarnings()
Pizza.getEarnings()
boring.invoicePizza()
Topping bacon = new Topping("Bacon", 1.25);
Topping groundBeef = new Topping("Ground Beef", 0.41);
Topping blackOlives = new Topping("Black Olives", 1.22);
Pizza meatEaters = new Pizza(bacon, groundBeef, blackOlives);
Pizza.getEarnings()
meatEaters.invoicePizza()