text: public SheetRangeEvaluator(int firstSheetIndex, int lastSheetIndex, SheetRefEvaluator[] sheetEvaluators){if (firstSheetIndex < 0){throw new ArgumentException("Invalid firstSheetIndex: " + firstSheetIndex + ".");}if (lastSheetIndex < firstSheetIndex){throw new ArgumentException("Invalid lastSheetIndex: " + lastSheetIndex + " for firstSheetIndex: " + firstSheetIndex + ".");}_firstSheetIndex = firstSheetIndex;_lastSheetIndex = lastSheetIndex;_sheetEvaluators = sheetEvaluators;}