Add Object-Oriented Exercises

[choudaryhussainali]

Add Object-Oriented Programming (OOP) Exercises

📌 Description

Object-Oriented Programming (OOP) is one of the most essential concepts in Python for building scalable and reusable code. Currently, the repo lacks a dedicated set of exercises focusing on OOP principles.
We should add a structured collection of OOP-related exercises for learners who want to practice classes, objects, inheritance, polymorphism, and other core concepts.

✅ Tasks

• Create a new folder: advanced/oop/
• Add at least 10 OOP-focused exercises covering:
  • Classes and objects
  • Constructors (__init__)
  • Instance vs class variables
  • Methods (instance, class, static)
  • Inheritance (single, multiple)
  • Method overriding
  • Encapsulation and private attributes
  • Polymorphism
  • Dunder methods (__str__, __repr__, etc.)
  • Simple real-world projects (e.g., Bank Account, Library System, Student Management)

📝 Example Exercise

Problem:
Create a BankAccount class with the following:

• Attributes: account_holder, balance
• Methods: deposit(amount), withdraw(amount)
• Ensure that withdrawal doesn’t allow negative balance.
• Add a __str__ method to display account info.

Expected Usage:

account = BankAccount("Alice", 500)
account.deposit(200)
account.withdraw(100)
print(account)  # Output: Account Holder: Alice | Balance: 600

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🎯 Goals

• Provide Python learners with structured practice problems.
• Strengthen understanding of Object-Oriented Programming (OOP) concepts.
• Help contributors expand the repository with high-quality exercises.
• Build a community-driven resource for mastering Python.

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🤝 How to Contribute

1. Fork this repository.
2. Create a new branch for your changes (e.g., feature/add-oop-exercises).
3. Add or update exercises in the appropriate folder.
4. Follow the naming convention: exercise_X.py.
5. Write clear problem statements and comments inside each file.
6. Commit your changes and push the branch.
7. Submit a Pull Request (PR) with a short description of your contribution.

💡 Make sure your code is:

• Well-documented
• Beginner-friendly
• Easy to understand