POC Object-Oriented Programming in Python

Question 1

What is a class in Python?

Accepted Answer

A blueprint for creating objects

Answer

In Object-Oriented Programming (OOP) in Python, a class serves as a blueprint or a template for creating objects. It defines a set of attributes (data) and methods (functions) that the objects created from the class will possess. Objects are instances of a class, embodying the structure and behavior defined by the class.

Question 2

Which keyword is used to define a class in Python?

Accepted Answer

class

Answer

The `class` keyword is used in Python to define a new class. It is followed by the class name and a colon, indicating the start of the class's definition block. This keyword is fundamental for implementing Object-Oriented Programming principles and structuring code into reusable components.

Question 3

What is the purpose of the __init__ method?

Accepted Answer

To initialize the object

Answer

The `__init__` method is a special constructor method in Python classes. It is automatically called when a new object (instance) of the class is created. Its primary purpose is to initialize the object's attributes with the values passed during object creation, setting up the initial state of the instance.

Question 4

How do you access attributes of an object?

Accepted Answer

object.attribute

Answer

In Python, you access attributes (variables) and methods (functions) of an object using dot notation. The syntax `object.attribute` allows you to retrieve or modify the value of a specific attribute belonging to that object. This is the standard way to interact with an object's members.

Question 5

What is inheritance in Python?

Accepted Answer

Extending a class to reuse functionality

Answer

Inheritance is a core concept in Object-Oriented Programming where a new class (subclass/derived class) can inherit attributes and methods from an existing class (superclass/base class). This promotes code reusability and establishes an "is-a" relationship between classes, allowing the subclass to extend or specialize the functionality of the parent.

(POC) Python Online Certification Practice Test

(POC) Python Online Certification Practice Test

POC Object-Oriented Programming in Python