class ColorUtilities {

    public static String convertToRGBAColorString(Color aColor)
    {
        if (aColor == null)
        {
            return null;
        }
        StringBuilder sb = new StringBuilder();
        sb.append(aColor.getRed()).append('-').append(aColor.getGreen()).append('-').append(aColor.getBlue()).append('-')
                .append(aColor.getAlpha());
        return sb.toString();
    }

    private  ColorUtilities();

}