Classes & Objects

Question 1

Creating a Python Class

Answer 1

Create a class using the class keyword.

class MyClass:
#define class

Question 2

Creating an Object from a Class

Answer 2

You can create a new instance of an object by using the class name + ()

class Car:
pass

my_toyota = Car()

Question 3

Class Methods

Answer 3

You can create a function that belongs to a class, this is known as a method.

class Car:
def drive(self):
print(“move”)
my_honda = Car()
my_honda.drive()

Question 4

Class Variables

Answer 4

You can create a variable in a class. The value of the variable will be a available to all objects created from the class.

class Car:
colour = “black”
car1 = Car()
print(car1.colour) #black

Question 5

The init method

Answer 5

You will see “building car” printed.

The init method is called every time a new object is created from the class.

class Car:
def init(self):
print(“Building car”)
my_toyota = Car()

Question 6

Class Properties

Answer 6

You can create a variable in the init() of a class so that all objects created from the class has access to that variable.

class Car:
def init(self, name):
self.name = “Jimmy”

Question 7

Class Inheritance

Answer 7

When you create a new class, you can inherit the methods and properties of another class.