package examples;
import java.util.Observable;
import java.util.Observer;
public class ObserverOfPoint3d implements Observer {
public void update(Observable observable,
Object o) {
System.out.println("observable =" +
observable);
System.out.println(observable.getClass().getName());
System.out.println("argument=" +
o);
ObservablePoint3d p3d = (ObservablePoint3d) (observable);
System.out.println("got points! d1,d2,d3=" +
p3d.getD1() + "," + p3d.getD2() + "," + p3d.getD3());
}
}
class Mediator {
ObservablePoint3d op3d = new ObservablePoint3d();
ObserverOfPoint3d observer = new ObserverOfPoint3d();
public void wire() {
op3d.addObserver(observer);
op3d.setD1(-99);
op3d.notifyObservers();
}
public static void main(String args[]) {
Mediator m = new Mediator();
m.wire();
}
}