BASIC INPUT AND OUTPUT

 C++ Language comes with many libraries which help us to perform input and output operations.

In C++ sequence of bytes corresponding to input and output is commonly called as stream.

There are two types of streams :

1-> INPUT STRAEM :  In input stream the direction of flow of bytes occurs from input device to                                                main   memory.

                                    Ex -> Keyboard to main memory.

2->OUTPUT STREAM : In output stream the direction of flow of bytes occurs from main memory to                                                      Output device.

                                         Ex->Display.

<< These symbol in  c++  is called INAERSTIONAL operator.

>> and these symbol are called EXTRAXCTION operator.

//cin>> is a function which helps us enter value  in terminal.

// BASIC INPUT AND OUTPUT IN C++.

#include <iostream>

using namespace std;

int main()

{

 int num1,num2;

cout<<"enter the value of num1:\n"; /* '<<' these symbol are called Insertion operator ->

iska mtlab hai jo bhi output hai

 yaani jo bhi user ne likha hua hai

  usko screen pe print karwa do

-> for example enter the value of num1

jo likha hua hai mene, usko screen pe print krwa do */

cin>>num1; /* '>>' these symbol are called Extraction operator

 -> Cin function hai which helps us  to write in Terminator

->Extraction operator  ka mtlb hai jo bhi value

 user ab terminator mai input krne waala hai usko le lo  

Hamne likh rakha hai Cin>>num1 to iska mtlab hogga ki num1 ke ander

 user jo bhi value enter krega usko lelo  */

cout<<"enter the valof num2:\n";

cin>>num2;

cout<<"the sum is:\n"<<num1+num2<<"\n";

return 0;

}