1: //hello3.cpp
2: //Display a greeting.
3: //Explicitly qualify each item from namespace std,
4: //and there is thus no need for a using directive
5: //or any using declarations.
6: //This is an extreme approach, but is nevertheless
7: //recommended by some developers.
9: #include <iostream>
11: int main()
12: {
13: std::cout << "\nHello, world!";
14: std::cout << "\nHow are you?\n" << std::endl;
15: }