Oops concept

                   * Function Overloading

                   * Virtual Functions.

Starting with the C++ Programming :

Consider the following program code ,

#include<iostream.h>

#include<conio.h>

void main( )

{

         

          int a,b,c;

          clrscr();

          cout<<endl<<"Enter the value of a and b :";

          cin>>a>>b;

          //calculate the sum

          c=a+b;

          //display the sum

          cout<<endl<<"Sum = " <<c;

          getch();

}

(a) #include<iostream.h>

          This statement will include the header file <iostream.h> in  our program .

          iostream stands for Input Output Stream .

          This header file will contain the entire class hierarchy.

                    

                     

(b) cout<<endl<<"Enter the value of a and b :" ;

    cin>>a>>b;

                            

Buffer : The Buffer is the section of the primary memory which is used for input and output .

                  

Stream : In C++ and Java , the buffer is known as streams.Stream refers to the flow of bytes.The Stream can be         considered as a logical device which either consumes or produces information.

         

There are two types of streams :

(i) Input Stream

(ii) Output Stream

(To be continue...)