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Oops

Object-Oriented Programming (OOP) structures programs using classes and objects, where a class serves as a blueprint for creating objects with specific properties and functions. An object is a real instance derived from a class, containing actual data and capable of utilizing the class's functions. The document also outlines the four pillars of OOP: encapsulation, abstraction, inheritance, and polymorphism.

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15 views3 pages

Oops

Object-Oriented Programming (OOP) structures programs using classes and objects, where a class serves as a blueprint for creating objects with specific properties and functions. An object is a real instance derived from a class, containing actual data and capable of utilizing the class's functions. The document also outlines the four pillars of OOP: encapsulation, abstraction, inheritance, and polymorphism.

Uploaded by

royalminigaming
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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C++ OOPS

Object-Oriented Programming (OOP) is a way to structure programs using


objects — just like things in real life (like a car, dog, or student).

1. What is a Class?
A class is like a blueprint or template for creating things (objects).
 It defines what properties (variables) and what actions (functions)
an object will have.
 Think of it like a design or plan.
Real-Life Example:
 Class: Car
 Properties: color, brand, speed
 Functions: start(), stop(), drive()
But this class doesn't represent any actual car — just the idea of a car.

2. What is an Object?
An object is a real item created using a class.
It has actual values inside it.
 You can create many objects from one class.
 Each object has its own data and can use the class functions.
Real-Life Example:
From class Car, you can create:
 Car c1 = BMW, red
 Car c2 = Audi, black
Each car (object) is based on the same class (design) but is a real, usable
thing.
#CODE:-
#include <iostream>
using namespace std;

// Creating a class
class Student {
public:
string name;
int age;

void introduce() {
cout << "Hello, my name is " << name << " and I am " << age
<< " years old." << endl;
}
};

int main() {
// Creating objects of the class Student
Student s1; // object 1
s1.name = "Pawan";
s1.age = 15;
s1.introduce(); // call function

Student s2; // object 2


s2.name = "Ravi";
s2.age = 14;
s2.introduce();

return 0;
}

// summary

Term Definition Example

Blueprint/template for
Class Car, Student, Animal
objects

Objec Real-world entity from a A red BMW, Pawan


t class (student)

Four Pillars of OOPs


1. Encapsulation
2.Abstraction
3. Abstraction 4. polymorphism

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