README.md

Java OOP Exercises

This project contains a collection of Java Object-Oriented Programming exercises that demonstrate the four main pillars of OOP:

• Classes
• Objects
• Encapsulation
• Inheritance
• Polymorphism

Exercises Included

Part 1: Car Class

• Demonstrates basic class creation with private fields
• Shows encapsulation through getters and setters
• Includes a constructor and display method

Part 2: ElectricCar Class

• Demonstrates inheritance by extending the Car class
• Adds new fields and methods specific to electric cars
• Shows method overriding

Part 3: Polymorphism

• Demonstrates polymorphism through method overloading
• Shows how a method can work with different types of objects

Part 4: Zoo Application

• Creates a hierarchy of animal classes
• Demonstrates method overriding in subclasses
• Shows how to work with collections of different object types

Bonus Challenge: Shape Classes

• Creates an abstract Shape class
• Implements concrete Circle and Rectangle classes
• Demonstrates abstract methods and inheritance

How to Run

1. Compile all Java files:

   javac src/*.java

2. Run the Main class:

   java -cp src Main

The program will demonstrate all the OOP concepts through practical examples.