Introduction to Object-Oriented Programming

Java is an object-oriented language, which means it organizes code around objects and classes.

What is a Class?

A class is a blueprint for an object. It describes what an object knows (its variables) and what it can do (its methods).

public class Dog {
  String name;
  int age;

  void bark() {
    System.out.println("Woof!");
  }
}

What is an Object?

An object is an actual thing created from a class. You can make many objects from the same class.

Dog myDog = new Dog();
myDog.name = "Buddy";
myDog.age = 4;
myDog.bark();

Why Use Classes and Objects?

They allow you to organize code, reuse logic, and create complex programs that mirror real-world things.

Real-World Analogy

A class is like a recipe, and objects are cakes you bake from that recipe!