Question

Input and output streams are provided by What header file

A)
B)
C)
D)

Answer 1

The header file for input and output streams in C++ is the <iostream> header. It defines the standard input and output streams like std::cin and std::cout for performing formatted input and output operations.

Step-by-step explanation:

The input and output streams are provided by the <iostream> header file in the C++ programming language. This header file includes definitions for formatted input and output operations. It is part of the C++ Standard Library and allows programmers to perform input from sources like the keyboard (using std::cin) and output to destinations like the console (using std::cout).

For example:

#include <iostream>
int main() {
int number;
std::cout << "Enter a number: ";
std::cin >> number;
std::cout << "You entered " << number << std::endl;
return 0;
}

This code snippet demonstrates how to use the input (std::cin) and output (std::cout) streams for reading a number from the user and then printing it to the screen.