Challenge 5: Classes
Classes
Classes form the backbone of Object-Oriented Programming (OOP) in Python. Their integral role is evident in:
- Encapsulation: Classes allow bundling of data and methods that operate on that data within a single unit, ensuring cohesion and modularity.
- Inheritance: It allows creation of a new class that is based on an existing class, promoting code reusability and establishing a relationship between the parent and child class.
- Polymorphism: With classes, one interface can be used for a general class of actions, allowing different classes to be treated as instances of the same class through method overriding.
In summary, classes provide a blueprint for creating objects and a foundation for OOP, facilitating structured and scalable code design.
Swipe to start coding
You have a base class Shape
with a method area
. Derive two subclasses Rectangle
and Circle
from it, which will calculate areas for their respective shapes.

- Inherit class
Rectangle
from classShape
. - Define
area
method forRectangle
class. - Inherit class
Circle
from classShape
. - Define
area
method forRectangle
class.
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Challenge 5: Classes
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Classes
Classes form the backbone of Object-Oriented Programming (OOP) in Python. Their integral role is evident in:
- Encapsulation: Classes allow bundling of data and methods that operate on that data within a single unit, ensuring cohesion and modularity.
- Inheritance: It allows creation of a new class that is based on an existing class, promoting code reusability and establishing a relationship between the parent and child class.
- Polymorphism: With classes, one interface can be used for a general class of actions, allowing different classes to be treated as instances of the same class through method overriding.
In summary, classes provide a blueprint for creating objects and a foundation for OOP, facilitating structured and scalable code design.
Swipe to start coding
You have a base class Shape
with a method area
. Derive two subclasses Rectangle
and Circle
from it, which will calculate areas for their respective shapes.

- Inherit class
Rectangle
from classShape
. - Define
area
method forRectangle
class. - Inherit class
Circle
from classShape
. - Define
area
method forRectangle
class.
Løsning
Tak for dine kommentarer!
Awesome!
Completion rate improved to 2.33single