Code example for CopyOnWriteArrayList

Methods: clear

	  * Clears the observer list so that this object no longer has any observers. 
	 public void deleteObservers() { 
	public static interface IObserver<X> { 
	     * This method is called whenever the observed object is changed. An 
	     * application calls an <tt>Observable</tt> object's 
	     * <code>notifyObservers</code> method to have all the object's 
	     * observers notified of the change. 
	     * @param   o     the observable object. 
	     * @param   arg   an argument passed to the <code>notifyObservers</code> 
	     *                 method.