In the iostream.h library of C++, cin, and cout are the two data streams that are used for input and output respectively. Cout is normally directed to the screen and cin is assigned to the keyboard.
cin(extraction operator): By using overloaded operator >> with cin stream, C++ handles the standard input.
Example:
int age;
cin>>age;
As shown in the above example, an integer variable ‘age’ is declared and then it waits for cin (keyboard) to enter the data. cin processes the input only when the RETURN key is pressed.
cout (insertion operator): This is used in conjunction with the overloaded << operator. It directs the data that followed it into the cout stream.
Example:
cout<<” Hello, World!”;
cout<<123;
4 years, 5 months ago.
