Classes: Blueprints for Objects

Snippet

Classes: Blueprints for Objects

Classes are user-defined blueprints that combine data (attributes) and functions (methods) into a single type. Objects are instances of classes. The class keyword defines the type, while objects are created from that type. Members can be public (accessible everywhere) or private.

snippet.cpp

cpp

#include <iostream>
#include <string>
 
class Dog {
public:
    std::string name;
    int age;
    
    void bark() {
        std::cout << name << " says: Woof!" << std::endl;
    }
};
 
int main() {
    Dog myDog;
    myDog.name = "Buddy";
    myDog.age = 3;
    myDog.bark();
    return 0;
}

Breakdown

class Dog { }

Defines a new class type named Dog

std::string name;

Member variable to store the dog's name

void bark()

Member function that outputs bark sound

Dog myDog;

Creates an object (instance) of class Dog

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Classes: Blueprints for Objects

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