A simple program
main()
There are essentially four
parts to a function
definition. They are the
return type, the function
name, the parameter list,
and the function body, in
that order. In this case:
return type: int
function name: main
parameter list: ()
function body: { ... }
//include this file for cout
#include <iostream.h>
int main()
{
   //print out the text string,
   //"Hello, World!"
   cout << "Hello, World!"
       << endl;
   return 0;
}