Advanced Foundations

OOP & Blueprints

Module 3: Building complex systems using Classes, Objects, and Inheritance.

SYSTEM: CLASS_STRUCTURE

21 // Classes: The Blueprint

Think of a Class as the architectural drawing of a house, and an Object as the actual house built from that drawing.

class UserAccount:
    def __init__(self, username, balance):
        self.username = username
        self.balance = balance

    def deposit(self, amount):
        self.balance += amount
        print(f"New Balance: {self.balance}")

# Creating an Object (Instance)
user1 = UserAccount("VisualEaze", 5000)
user1.deposit(1000)
  

AI Insight: __init__ is a "Constructor." It's the first thing that runs when you create an object. It sets the starting state of your data.

SYSTEM: OOP_PILLARS

22-25 // The Pillars of OOP

Lesson 22: Inheritance — Creating a "Child" class that takes features from a "Parent" class.

Lesson 23: Encapsulation — Keeping data safe and hidden inside an object so it can't be accidentally changed.

Lesson 24: Polymorphism — Allowing different classes to use the same function name but perform different actions.

Lesson 25: Abstraction — Hiding the complex background details and only showing the essential features to the user.

SYSTEM: DEEP_LOGIC

26-30 // Dunder Methods & Decortators

In these lessons, we explore "Magic Methods" (like __str__) and "Decorators" (like @property) which allow you to change how Python functions behave.

🏆 Module 3 Capstone: The Brand Manager

Build a Class called VisualStudio. It should track project names, client names, and a "Budget" variable that is hidden (Encapsulated) so only the manager can see it.

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