oops

What is oop's

Let discuss about oop's in c++

oops stand for (object oriented programming language language)

oops refers to a type of computer programming language in which programmer not only define the data type of a data structure but also the type of  function.

Type of oops:

• Class/Object
• Inheritance
• Abstraction
• polymorphism
• Encapsulation

classes/object:

classes and objects are the two main part of oops.

Class:

• class is a collection of data member/member function
• class always declared with keyword class
• we can't pass value directly in class
• class is declared at once
• no memory is allocated for a class 

Object:

• Object is instance of a class
• At a time of object creation we doesn't required any keyword
• we can pass value directly through the object
• one or more object created for particular class 

How to create class:

Just write class and name  like this

Data member

"Basically data member are the type of data type like int, char, string"

Example:

 Function:

" Basically function are work that you want to perform task through it" 

Here you can see those void function that we want to perform.

public and private:

 

What are objects:

we make objects in main section. Through object we can access our class section.

Here you can see we have " bio b1 is the object that we create to to access the function of class" 

Example

Let disuses more about through class/object "Take user bio by using class and object"

#include <iostream>

using namespace std ;

class bio
{
private :
string Name ;
int Sallery ;
public :
void getinfo ();
void display ();
};

void bio :: getinfo ()
{
cout << "Name: " ;
cin >> Name ;
cout << "Sallery: " ;
cin >> Sallery ;
}

void bio :: display ()
{
cout << "Name:" <<Name ;
cout << endl ;
cout << "Sallery: $"<<Sallery ;
}

int main ()
{
bio b1 ;
b1.getinfo();
b1.display();
}

Output

Input

Name: Buckey
Sallery: 100

Result

Name: Buckey
Sallery: $100