Lesson 15 of 19

Object-Oriented Programming

Model related data and behavior together.

Introduction

Object-oriented programming groups state and behavior into objects. A class describes what an object should contain and do.

Use OOP when a domain has clear entities such as users, products or bank accounts.

Key insight

Example

class Dog:
    def speak(self):
        return "Woof!"

print(Dog().speak())

This example shows the core object-oriented programming idea in a small, runnable program.

Real-world example

Test yourself

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Answer every question, then submit your quiz.

Try it yourself

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Practice challenge

Create a Book class with a title attribute.