What is cout and cin i mean are they an object are they a function ,, how it works ??

Question

what is the coding behind cout and cin .

Answer 1

std::cout is an instance of std::ostream. std::cout << "something" calls one of the operator<< overloads as would be done for any instance of std::ostream.

It's "special" in that it references the console, but otherwise it behaves exactly as an ofstream or an ostringstream would.

You can see some of the actual source here https://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/files.html

Answer 2

They are an object of the class stream

Answer 3

1- cin to accept what the user right .
2- cout is to output(to display) what you write in "............."
in c programming its know (printf).