quiz.md

python classes quizes

Question #0

>>> class User:
>>>     id = 89
>>>     name = "no name"
>>>     __password = None
>>>     
>>>     def __init__(self, new_name=None):
>>>         self.is_new = True
>>>         if new_name is not None:
>>>             self.name = new_name
>>> 
>>> u = User()
>>> u.is_new

• False
• is_new
• Nothing
• True

Question #1

What do these lines print?

>>> class User:
>>>     id = 89
>>>     name = "no name"
>>>     __password = None
>>>     
>>>     def __init__(self, new_name=None):
>>>         self.is_new = True
>>>         if new_name is not None:
>>>             self.name = new_name
>>> 
>>> u = User()
>>> u.name

• John
• None
• name
• no name

Question #2

What do these lines print?

>>> class User:
>>>     id = 89
>>>     name = "no name"
>>>     __password = None
>>>     
>>>     def __init__(self, new_name=None):
>>>         self.is_new = True
>>>         if new_name is not None:
>>>             self.name = new_name
>>> 
>>> u = User("John")
>>> u.name

• John
• no name
• None
• name

Question #3

In this following code, what is id?

class User:
    id = 89
    name = "no name"
    __password = None

    def __init__(self, new_name=None):
        self.is_new = True
        if new_name is not None:
            self.name = new_name

• A public class method
• A protected class attribute
• A private class attribute
• A public class attribute
• A public instance attribute
• A public instance method

Question #4

In this following code, what is __password?

class User:
    id = 89
    name = "no name"
    __password = None

    def __init__(self, new_name=None):
        self.is_new = True
        if new_name is not None:
            self.name = new_name

• A protected class attribute
• A private instance attribute
• A private class attribute
• A public instance attribute
• A public class attribute
• A protected instance attribute

Question #5

In the following code, what is User

class User:
    id = 89
    name = "no name"
    __password = None

    def __init__(self, new_name=None):
        self.is_new = True
        if new_name is not None:
            self.name = new_name

• An attribute
• A class
• A string
• An instance
• A method

Question #6

What do these lines print?

>>> class User:
>>>     id = 89
>>>     name = "no name"
>>>     __password = None
>>>     
>>>     def __init__(self, new_name=None):
>>>         self.is_new = True
>>>         if new_name is not None:
>>>             self.name = new_name
>>> 
>>> u = User()
>>> u.id

• User.id
• 89
• Nothing
• id

Question #7

In this following code, what is is_new?

class User:
    id = 89
    name = "no name"
    __password = None

    def __init__(self, new_name=None):
        self.is_new = True
        if new_name is not None:
            self.name = new_name

• A protected class attribute
• A private instance attribute
• A private instance attribute
• A public instance attribute
• A public class attribute
• A protected instance attribute