//Method: Main
//Purpose: Create a Tardis object and PhoneBooth object and use both by calling UsePhone Method
//Restrictions: None
static void Main(string[] args)
{
Tardis tardis = new Tardis();
PhoneBooth phoneBooth = new PhoneBooth();
UsePhone(tardis);
UsePhone(phoneBooth);
}
//Method: UsePhone
//Purpose: call MakeCall() and HangUp() using interface, then calls approprate method based on object type
//Restrictions: None
static void UsePhone(object obj)
{
PhoneInterface phoneInterface = (PhoneInterface)obj;
phoneInterface.MakeCall();
phoneInterface.HangUp();
if (obj.GetType() == typeof(PhoneBooth))
{
PhoneBooth phoneBooth = (PhoneBooth)obj;
phoneBooth.OpenDoor();
}
else if (obj.GetType() == typeof(Tardis))
{
Tardis tardis = (Tardis)obj;
tardis.TimeTravel();
}
}