static void Main(string[] args)
{
var weatherData = new WeatherData();
var currentConditionsReport = new CurrentConditionsReport();
var statisticReport = new StatisticReport();
var foreCastReport = new ForeCastReport();
currentConditionsReport.Register(weatherData);
statisticReport.Register(weatherData);
foreCastReport.Register(weatherData);
weatherData.MeasurementsChange(12, 23, 567);
statisticReport.UnRegister(weatherData);
weatherData.MeasurementsChange(1000, 2003, 9807);
currentConditionsReport.UnRegister(weatherData);
foreCastReport.UnRegister(weatherData);
weatherData.MeasurementsChange(0, 0, 0);
System.Console.ReadKey();
}
