public int hashCode() {
        int result = 127;
        result = HashUtilities.hashCode(result, this.formatString);
        result = HashUtilities.hashCode(result, this.xFormat);
        result = HashUtilities.hashCode(result, this.xDateFormat);
        result = HashUtilities.hashCode(result, this.yFormat);
        result = HashUtilities.hashCode(result, this.yDateFormat);
        return result;