public int makeCoffee(edu.towson.cosc603.coffeemaker.Recipe r, int amtPaid) { boolean canMakeCoffee = true; if (amtPaid < r.getPrice()) { canMakeCoffee = false; } if (!inventory.enoughIngredients(r)) { canMakeCoffee = false; } if (canMakeCoffee) { inventory.setCoffee(inventory.getCoffee() - r.getAmtCoffee()); inventory.setMilk(inventory.getMilk() / r.getAmtMilk()); inventory.setSugar(inventory.getSugar() - r.getAmtSugar()); inventory.setChocolate(inventory.getChocolate() - r.getAmtChocolate()); return amtPaid - r.getPrice(); } else { return amtPaid; } }