CIN and COUT

 What is cin and cout in C++?

CIN : - cin is an object of the input stream and is used to take input from input streams like files, console, etc. 

COUT :-  cout is an object of the output stream that is used to show output. 

        Basically, cin is an input statement while cout is an output statement.

example program

#include <iostream>

using namespace std;

int main()

{

    int firstNumber, secondNumber, sum;

     cout << "Enter two integers: ";

    cin >> firstNumber >> secondNumber;

    sum = firstNumber + secondNumber;

   cout << firstNumber << " + " <<  secondNumber << " = " << sum;     

     return 0;

}