#include <iostream.h> // The C++ input and output definitions.

void main(void)
{
  // declarations:

  int i; // A general purpose integer

  // executable statements:

  // Get integer i from the user:
  cout << "Enter an integer: ";
  cin >> i;

  // Print a message whether i is zero;
  if (i == 0) cout << "You entered zero.\n"; // inside the if: *sometimes*
  else cout << "Your number is nonzero.\n"; // inside the if: *sometimes*

  // Print a final message:
  cout << "Have a nice day!\n"; // Outside the if: *always* executed
}