static void Main(string[] args)
{
StringProvider provider = new StringProvider();
StringProviderObserver observer = new StringProviderObserver(provider);
observer.DataChanged += OnDataChanged;
observer.Start();
while (true)
{
Console.WriteLine("\t\tHello World");
Thread.Sleep(1000);
}
}
public StringProviderObserver(StringProvider provider)
{
this.provider = provider;
}