What is the use of iostream

Question

the headerfile iostream what is the use

Answer 1

http://www.cplusplus.com/reference/iostream/

It helps handle your inputs/outputs.

Answer 2

Like the C stdio header inherited from C's stdio.h, iostream provides basic input and output services for C++ programs. iostream uses the objects cin , cout , cerr , and clog for sending data to and from the standard streams input, output, error (unbuffered), and log (buffered) respectively."