(solved) C++, dos?

[Kings]

Hey

I just started programming c++ and I have a very stupid question (I think)

All my programs are dos, is this suppose to be in dos?

I have this code and it opens a dos window,

#include <iostream.h>

void odd (int a);
void even (int a);

int main ()
{
  int i;
  do {
    cout << "Type a number: (0 to exit)";
    cin >> i;
    odd (i);
  } while (i!=0);
  return 0;
}

void odd (int a)
{
  if ((a%2)!=0) cout << "Number is odd.\n";
  else even (a);
}

void even (int a)
{
  if ((a%2)==0) cout << "Number is even.\n";
  else odd (a);
}

Any Idea? Thanks