Classes and Objects Quiz

To pass the quiz, you must correctly answer at least 9 of the 10 questions below. # --quizzes-- ## --quiz-- ### --question-- #### --text-- Which of the following is the correct way to define a class? #### --distractors-- ```py def className(class): pass ``` --- ```py self className: pass ``` --- ```py class className pass ``` #### --answer-- ```py class className: pass ``` ### --question-- #### --text-- What is the purpose of the special method `__init__`? #### --distractors-- It sets a shortcut to create an instance of a class. --- It prevents an object from having duplicate attributes. --- It sets the value of `self` to the current object. #### --answer-- It initializes objects' attributes upon instantiation. ### --question-- #### --text-- What is the difference between an instance attribute and a class attribute? #### --distractors-- Instance attributes define methods that can be accessed from an object; class attributes define methods that can be accessed from a class. --- Instance attributes are set within the `__init__` method; class attributes are set within the `__class__` method. --- Instance attributes can be directly accessed from the class; class attributes can only be accessed from an actual instance of the class. #### --answer-- Instance attributes belong to a specific object; class attributes belong to a class. ### --question-- #### --text-- Which of the following is the correct way to call the `spam` method from the `menu` object? #### --distractors-- `spam.menu()` --- `menu[spam]` --- `spam.menu` #### --answer-- `menu.spam()` ### --question-- #### --text-- Which of the following special methods is called under the hood when an object is printed to the console? #### --distractors-- `__print__` --- `__log__` --- `__string__` #### --answer-- `__str__` ### --question-- #### --text-- What is the result of the following code? ```py class Menu: dish_of_the_day = "spam" print(Menu.dish_of_the_day) ``` #### --distractors-- `None` --- `AttributeError` --- `SyntaxError` #### --answer-- `spam` ### --question-- #### --text-- What does the `self` parameter refer to inside a method? #### --distractors-- It's a reference to the object initializer. --- It's a reference to the module where the class is defined. --- It's a reference to the class being used. #### --answer-- It's a reference to the instance of the class calling the method. ### --question-- #### --text-- Which of the following correctly creates an instance of a class `Person`? #### --distractors-- `Person.new()` --- `new Person()` --- `new Person` #### --answer-- `Person()` ### --question-- #### --text-- What will be the result of the following code? ```py class Dog: def __init__(name, age): self.name = name self.age = age dog = Dog("Pinky", 3) print(dog.name) ``` #### --distractors-- `Pinky` --- `3` --- `AttributeError` #### --answer-- `TypeError` ### --question-- #### --text-- Which of the following is the correct way to access the `name` attribute of the `dog` object? #### --distractors-- `dog().name` --- `dog.name()` --- `dog.get('name')` #### --answer-- `dog.name`