Gain insights into writing cleaner, modular, and scalable Python code through Object-Oriented Programming. Dive into inheritance, polymorphism, and more with coding challenges and illustrations.

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

class Calculator:
    def __init__(self, num1, num2):
        self.num1 = num1
        self.num2 = num2

    def add(self):
        return (self.num2 + self.num1)

    def subtract(self):
        return (self.num2 - self.num1)

    def multiply(self):
        return (self.num2 * self.num1)

    def divide(self):
        return (self.num2 / self.num1)


demo1 = Calculator(10, 94)
print("Addition:", demo1.add())
print("Subtraction:", demo1.subtract())
print("Mutliplication:", demo1.multiply())
print("Division:", demo1.divide())


## Explanation

* We have implemented the `Calculator` class, which has the two properties, `num1` and `num2.`

* In the initializer, at **line 3 - 4**, we have initialized both properties, `num1` and `num2`.

* In **line 7**, we implemented `add()`, a *method* that returns the sum, `num1` + `num2`, of both properties.

* In **line 10**, we implemented `subtract()`, a *method* that returns the subtraction of `num1` from `num2`. 

* In **line 13**, we implemented `multiply()`, a *method* that returns the product, `num2` $\times$ `num1`, of both properties.

* In **line 16**, we implemented `divide()`, a *method* that returns the division of `num2` by `num1`. 




This review provides a detailed explanation for the 'Implement a Calculator Class' challenge.

Introduction to Object-Oriented Programming

Classes and Objects

Information Hiding

Exam 1

Inheritance

Polymorphism

Object Relationships

Exam 2

Solution Review 3: Implement a Calculator Class

Solution