public synchronized String toString(){
  StringBuffer sb=new StringBuffer();
  if (dirtyComponents != null)   sb.append("" + dirtyComponents);
  return sb.toString();
}

public synchronized String toString ( ) { StringBuffer sb = new StringBuffer ( ) ; if ( dirtyComponents != null ) sb . append ( "" + dirtyComponents ) ; return sb . toString ( ) ; }
returns a string that displays and identifies this object ' s properties .
