code: public static boolean isScreenAvailableToShow(final int screen)
  	{
  		final GraphicsDevice[] graphicsDevices = getAvailableScreens();
  		boolean screenAvailableToShow = false;
  		if ((screen > -1 && screen < graphicsDevices.length) || (graphicsDevices.length > 0))
  		{
  			screenAvailableToShow = true;
  		}
  		return screenAvailableToShow;
  	}
docs: Checks if the given screen number is available to show.
  
  @param screen
  the screen
  @return true, if is screen available to show