public  void actionPerformed(ActionEvent ae) 
{

}

 public  void addPropertyChangeListener(PropertyChangeListener l) 
{

}

 public Object getValue(String key) 
{
            return null;
}

 public boolean isEnabled() 
{
            return false;
}

 public  void putValue(String key,
    Object value) 
{

}

 public  void removePropertyChangeListener(PropertyChangeListener l) 
{

}

 public  void setEnabled(boolean b) 
{

}