What is the usual job of __init__ in the Account class?

• To print the balance whenever any attribute is read
• To initialize the new account's starting attributes
• To delete the account after its first method call

Cat is a defined class whose initializer needs no additional arguments. Which line creates an instance?

• pet_1 = Cat()
• pet_1 = Cat
• Cat = pet_1

Two Cat instances each have an instance attribute name. Assigning pet_1.name = "Moss" must also change pet_2.name.

Circle one:   True   False

CoffeeOrder.loc is a class attribute. __init__ sets self.cup_size. No instance sets its own loc. Which statement fits this design?

• loc is shared through the class; cup_size belongs to each order
• loc belongs to each order; cup_size is shared through the class
• Both loc and cup_size are shared through the class for every order

Rectangle.area(self) returns self.length * self.width. room_1 has length 10 and width 15. What does room_1.area() return?

• 25
• 115
• 150

ProductionCar.update_max(self, speed) assigns self.max_mph = speed. Two separate cars start with max_mph = 0.0. car_1.update_max(250.0) runs. Which state follows?

• car_1.max_mph = 250.0; car_2.max_mph = 250.0
• car_1.max_mph = 0.0; car_2.max_mph = 250.0
• car_1.max_mph = 250.0; car_2.max_mph = 0.0

Separate balance variables and deposit/withdraw functions are reorganised as Account objects. What does this change provide by itself?

• Each balance and its operations are grouped in one object
• All account balances become one shared value on the class
• Other code can no longer assign to any account attribute

CoffeeOrder.cls_id starts at 10. Each initializer adds 1, then copies the counter into self.order_id. Three orders are created. What is the third order's order_id?

• 12
• 13
• 10