Classes & Objects

1What is a Class?✨

A class in C++ is a blueprint for creating objects. It defines a type of object and includes attributes (data) and methods (functions) that operate on the data. Classes help in organizing code and modeling real-world entities.

2Why Learn About Classes?🎯

• ✓ Encapsulates data and functions together
• ✓ Promotes code reusability
• ✓ Supports inheritance and polymorphism
• ✓ Makes complex programs easier to manage

3Creating a Class💡

To create a class, use the `class` keyword followed by the class name. Here’s how you can define a simple class:

class Dog {
public:
    string name;
    int age;

    void bark() {
        cout << name << " says Woof!" << endl;
    }
};

4Using Objects🚀

An object is an instance of a class. You can create multiple objects from the same class. Here’s how to use the Dog class:

5Dog myDog;🔍

myDog.name = "Buddy";
myDog.age = 3;
myDog.bark();

6Class Members⭐

Classes can have different types of members including data members and member functions. Here’s an example demonstrating both:

class Car {
public:
    string model;
    int year;

    void display() {
        cout << "Model: " << model << ", Year: " << year << endl;
    }
};

7What You'll Build This Grade🧩

• ✓ Programs that simulate real-world objects
• ✓ Games featuring characters and items
• ✓ Applications managing user data
• ✓ Systems for handling complex operations