public BlankCellRectangleGroup(int firstRowIndex, int firstColumnIndex, int lastColumnIndex) {_firstRowIndex = firstRowIndex;_firstColumnIndex = firstColumnIndex;_lastColumnIndex = lastColumnIndex;_lastRowIndex = firstRowIndex;}
public BlankCellRectangleGroup(int firstRowIndex, int firstColumnIndex, int lastColumnIndex){_firstRowIndex = firstRowIndex;_firstColumnIndex = firstColumnIndex;_lastColumnIndex = lastColumnIndex;_lastRowIndex = firstRowIndex;}