CLASS java.util.Observable

Availability: JDK 1.0

public class Observable extends Object {
   // Public Constructor
1.1  public Observable();
   // Public Instance Methods
      public synchronized void addObserver(Observer o);
      public synchronized int countObservers();
      public synchronized void deleteObserver(Observer o);
      public synchronized void deleteObservers();
      public synchronized boolean hasChanged();
      public void notifyObservers();
      public void notifyObservers(Object arg);
   // Protected Instance Methods
      protected synchronized void clearChanged();
      protected synchronized void setChanged();
}

Passed To:

Observer.update().