package PatternObserver.WeatherV2;

/** Demo file, it may not be correct and/or complete.
 * Please watch the corresponding lecture(s) for more explanations.
 * @author ashesh
 */
public class Test1 {
	public static void main(String[] args) {
		Thermometer thermo = new Thermometer();
		DisplayUSA usaDisplay = new DisplayUSA();
		thermo.attach(usaDisplay);

		DisplayAustralia ausDisplay = new DisplayAustralia();
		thermo.attach(ausDisplay);

		System.out.println("\n----------------- thermo.setTemperatureC(30) ------------ ");
		thermo.setTemperatureC(30);
		System.out.println("\n----------------- thermo.setTemperatureC(12) ------------ ");
		thermo.setTemperatureC(12);

		Hygrometer hyg = new Hygrometer();
		hyg.attach(usaDisplay);

		/**  The following results in an error,
		    because DisplayAustralia does not implement ObserverHygrometer
		*/
		//hyg.attach(ausDisplay);

		System.out.println("\n----------------- hyg.setHumidity(77) ------------ ");
		hyg.setHumidity(77);
		System.out.println("\n----------------- hyg.setHumidity(96) ------------ ");
		hyg.setHumidity(96);
		System.out.println("\n----------------- thermo.setTemperatureC(35) ------------ ");
		thermo.setTemperatureC(35);

		thermo.detach(usaDisplay);
		System.out.println("\n----------------- thermo.removeObserver(usaDisplay)  ------------ ");

		System.out.println("\n----------------- thermo.setTemperatureC(41) ------------ ");
		thermo.setTemperatureC(41);
		System.out.println("\n----------------- ------------ ");
	}
}