How to get an Excel Blank Cell Value in Apache POI?

Question

I have a huge excel file with tons of columns which looks like this :-

Column1 Column2 Column3 Column4 Column5
abc             def             ghi
        mn         


        

Answer 1

public String[] rowToString(Row row)
{
    Iterator cells = row.cellIterator() ;
    String[] data = new String[row.getLastCellNum()] ;

    int previousCell = 0 ;

    Cell cell = cells.next() ;
    int currentCell = cell.getColumnIndex();

    while (true)
    {
        if (previousCell == currentCell) {
            switch (cell.getCellType()) {
                case Cell.CELL_TYPE_NUMERIC:
                    data[previousCell] = cell.getNumericCellValue()+"" ;
                    break;
                case Cell.CELL_TYPE_STRING:
                    data[previousCell] = cell.getStringCellValue() ;
                    break;
                    /* // there could be other cases here.
                    case Cell.CELL_TYPE_FORMULA:
                        data[previousCell] =eval.evaluateFormulaCell(cell);
                        break;
                    case Cell.CELL_TYPE_BOOLEAN:
                        data[previousCell] = cell.getBooleanCellValue();
                        break;
                    case Cell.CELL_TYPE_BLANK:
                        data[previousCell] = "";
                        break;
                    case Cell.CELL_TYPE_ERROR:
                        data[previousCell] = "ERROR";
                        break;
                    */
            }
            if(cells.hasNext()){
                cell = cells.next() ;
                currentCell = cell.getColumnIndex();
            } else {
                break ;
            }

        } else {
            data[previousCell] = "";
        }
        previousCell++ ;

    }

    return data ;

}