PPT Slide
public void addReceiveListener(ReceiveListener sl)
listeners.addElement(sl);
public void removeReceiveListener(ReceiveListener sl)
listeners.removeElement(sl);
private void notifyListeners(ReceiveEvent re)
for (int i=0; i < listeners.size(); i++) {
((ReceiveListener)listeners.elementAt(i)).processReceive(re);
} catch (InterruptedException e) {