Challenge
Note
Private methods and attributes of the parent class are not available in the child's class.
The Animal class:
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class Animal:
def __init__(self, name = None, age = None):
self.__name = name
self.__age = age
def move(self):
print('Animal is moving...')
1234567class Animal: def __init__(self, name = None, age = None): self.__name = name self.__age = age def move(self): print('Animal is moving...')
Task
Swipe to start coding
- Create a class
Catthat inherits theAnimalclass. - Create the
eatmethod. - Create a
5kg10years old'Lola'cat. - Move the cat (using the
move()method from theAnimalclass). - 'Feed' the cat (using the
eat()method from theCatclass).
Solution
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class Animal:
def __init__(self, name = None, age = None):
self.__name = name
self.__age = age
def move(self):
print('Animal is moving...')
# Create a class Cat that inherits the Animal
class Cat(Animal):
def __init__(self, name = None, age = None, weight = 0):
self.__name = name
self.__age = age
# Create the private variable weight
self.__weight = weight
# Create the eat method
def eat(self):
self.__weight += 1
print(f'{self.__name} is {self.__weight} kg now.')
# Create a 10 years old 'Lola' cat
cat = Cat('Lola', 10, 5)
# Use the move() method
cat.move()
# Use the eat() method
cat.eat()
Everything was clear?
Thanks for your feedback!
Section 3. Chapter 2
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class Animal:
def __init__(self, name = None, age = None):
self.__name = name
self.__age = age
def move(self):
print('Animal is moving...')
# Create a class Cat that inherits the Animal
___:
def __init__(self, name = None, age = None, weight = 0):
self.__name = name
self.__age = age
# Create the private variable weight
___ = ___
# Create the eat method
___(self):
self.__weight += 1
print(f'{self.__name} is {self.__weight} kg now.')
# Create a 5 kg 10 years old 'Lola' cat
cat = Cat(___)
# Use the move() method
cat.___()
# Use the eat() method
___
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