Question

I want to store numeric data in excel sheet.
The numeric data is represented by String type in my java code.
Is it possible to set it as numeric without casting it?

I’ve tried the following code, but it wasn’t converted to numeric type (I get a warning in excel saying that number is stored as text…)

HSSFCell dCell =...
dCell.setCellType(Cell.CELL_TYPE_NUMERIC);
dCell.setCellValue("112.45")

Answer 1

You have to provide the value as a double. As the doc says:

setCellValue

public void setCellValue(double value)

set a numeric value for the cell

Parameters:

value – the numeric value to set this cell to. For formulas we’ll set the
precalculated value, for numerics we’ll set its value. For other types
we will change the cell to a numeric cell and set its value.

So, it should be

dCell.setCellValue(new Double("123"));

OR

dCell.setCellValue(123);  //Remember, the way you did was, you actually passed a string (no quotes)