patterns/observer/app.d

module observer.app;
import observer.weatherdata;
import observer.currentconditionsdisplay;
import observer.heatindexdisplay;

void main()
{
    WeatherData weatherData = new WeatherData();
    CurrentConditionsDisplay currentDisplay = new CurrentConditionsDisplay(weatherData);
    HeatIndexDisplay heatIndexDisplay = new HeatIndexDisplay(weatherData);

    weatherData.setMeasurements(80, 65, 30.4f);
    weatherData.setMeasurements(82, 70, 29.2f);
    weatherData.removeObserver(heatIndexDisplay);
    weatherData.setMeasurements(78, 90, 29.2f);
    weatherData.setMeasurements(81, 72, 29.5f);
}