//And the books implementation of the Observer method is not as flexible as mine
//You can't select what displays to show beforehand, it just displays what is programmed in
CurrentConditionsDisplay currentDisplay = new CurrentConditionsDisplay(weatherData);
ForecastDisplay forecastDisplay = new ForecastDisplay(weatherData);
weatherData.setMeasurements(80, 65, 30.4f);
weatherData.setMeasurements(82, 70, 29.2f);
weatherData.setMeasurements(78, 90, 29.2f);
weatherData.deleteObserver(currentDisplay);