throw new IllegalArgumentException("no argument may be less then 1");
throw new IllegalArgumentException("no argument may be less than 1");
  public ResolutionSyntax(int crossFeedResolution, int feedResolution,                          int units)  {    if (crossFeedResolution < 1        || feedResolution < 1        || units < 1)      throw new IllegalArgumentException("no argument may be less then 1");    this.crossFeedResolution = crossFeedResolution * units;    this.feedResolution = feedResolution * units;  }