static void Main(string[] args)
{
// Create timer, and set the time for five seconds through the constructor
CustomerTimer timer = new CustomerTimer(5);
// Creating a object OVEN without signing up for an event from the constructor
Oven oven = new Oven();
// Creating a object WASHING MACHINE with signing up for an event from the constructor
WashingMachine wm = new WashingMachine(timer);
// Creating a object ALARM CLOCK with signing up for an event from the constructor
AlarmClock ac = new AlarmClock(timer);
//Signing of the object OVEN to the event using interface method
oven.SubscribeToEventTimerAlarm(timer);
// Timer start
timer.StartTimer();
Console.ReadKey();
}
public void UnsubscribeToEventTimerAlarm(CustomerTimer timer)
{
if (timer == null)
throw new ArgumentNullException("CustomerTimer is null");
timer.Alarm -= ProcessingEventAlarmClassOven;
}
public Oven(CustomerTimer timer)
{
if (timer != null)
SubscribeToEventTimerAlarm(timer);
}
public void SubscribeToEventTimerAlarm(CustomerTimer timer)
{
if (timer == null)
throw new ArgumentNullException("Timer is null");
timer.Alarm += ProcessingEventAlarmClassWashingMachine;
}
public WashingMachine(CustomerTimer timer)
{
if (timer != null)
SubscribeToEventTimerAlarm(timer);
}
