How to check a cell in excel integer or not in apache POI

Question

I am using apache POI to read excel.i have a requirement that the the value in the excel should only be integer. I have done this

if(cell.getCellType()==XSSFCell.CELL_TYPE_NUMERIC)

but it is applicable for all numeric values. But i want to check only for integer.Plese help.I dont find any thing in this XSSFCell to check integer.

Answer 1

you should try and add another condition

if(cell.getCellType()==XSSFCell.CELL_TYPE_NUMERIC)
{
    if(cell.getNumberCellValue instanceof Integer)
       do something

}

Answer 2

You can get the cell value and check if it's value changes when you round it. It doesn't use the POI library, but get's the job done:

Double numericCellValue = cell.getNumericCellValue();
if(Math.floor(numericCellValue) == numericCellValue){
    // It's an integer;
}

Answer 3

    Cell value=cols.next();
    if(value.getCellType()==CellType.NUMERIC)
    {
                        
       System.out.println((int)value.getNumericCellValue());
                    
    }
It will check is cellType is numeric which includes double also. But once confirmed, it will type cast it into numeric value.