This course on object-oriented programming in Python covers everything from OOP fundamentals and Python-specific features to applying OOP concepts.

cpp17.tar.gz

Learn to write cleaner, more modular, and more scaleable code in Python by gaining a master of Object Oriented Programming (OOP). 

You'll start with the basics of object oriented programming and build up to more advanced concepts such as inheritance, information hiding, and polymorphism. Along the way you'll learn how each concept applies to Python in particular, as well as how various Python features make it particularly convenient for OOP.

This course is filled with hands-on coding challenges, playgrounds, snippets, and illustrations to keep things interactive.

Learn Object-Oriented Programming in Python

## Problem statement

You are given a partially completed code of a `Rectangle` class in the editor. Implement the class by completing the tasks below.


### Task 1
Implement a constructor to initialize the values of two **private** properties: `length` and `width`.

### Task 2

Implement a method, `area()`, in the `Rectangle` class that returns the product of `length` and `width`. See the formula below:

$Area = length \times width$

**Sample properties**
```python
length = 4
width = 5
```
**Sample method output**
```python
20
```
### Task 3

Implement a method, `perimeter()`, in the `Rectangle` class that returns *two times* the sum of `length` and `width`.
See the formula below:

$Perimeter = 2\times (length + width)$

**Sample properties**
```python
length = 4
width = 5
```
**Sample method output**
```python
18
```



# Problem statement

You are given a partially completed code of a `Rectangle` class in the editor. Implement the class by completing the tasks below.


## Task 1
Implement a constructor to initialize the values of two **private** properties: `length` and `width`.

## Task 2

Implement a method, `area()`, in the `Rectangle` class that returns the product of `length` and `width`. See the formula below:

$Area = length \times width$

**Sample properties**
```python
length = 4
width = 5
```
**Sample method output**
```python
20
```
## Task 3

Implement a method, `perimeter()`, in the `Rectangle` class that returns *two times* the sum of `length` and `width`.
See the formula below:

$Perimeter = 2\times (length + width)$

**Sample properties**
```python
length = 4
width = 5
```
**Sample method output**
```python
18
```



In this challenge, you will implement a rectangle class using the concepts of encapsulation. 

Challenge 1: Implement a Rectangle Class Using the Encapsulation

In this challenge, you will implement a rectangle class using the concepts of encapsulation.

Introduction to Object-Oriented Programming

Classes and Objects

Information Hiding

Exam 1

Inheritance

Polymorphism

Object Relationships

Exam 2

Challenge 1: Implement Rectangle Class Using the Encapsulation

Problem statement

Task 1

Task 2

Task 3