public void notifyObservers(ChangedEvent e)
{
foreach (ChangeObserver observer in observers)
{
observer.update(e);
}
}
public void update(ChangedEvent e)
{
Console.WriteLine("Change: {0}, New Balance: {1}",
e.Changage, e.ActualValue);
}
public virtual void Withdraw(double val)
{
money -= val;
ChangedEvent e = new ChangedEvent(-val, money);
notifyObservers(e);
}
public virtual void Deposit(double val)
{
money += val;
ChangedEvent e = new ChangedEvent(val, money);
notifyObservers(e);
}