Assuming you mean percentage, I have not done this myself, but it would seem
that you would simply setup a Cell Style with a data format consistent with
percentage.

Maybe something like this:

double myValue = 0.7;
.
.
.

HSSFCellStyle cellStyle = myWorkbook.createCellStyle();
HSSFCell cell = row.getCell((short)1);

cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("0%"));
- or -
cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00%"));

cell.setCellStyle(cellStyle);
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
cell.setValue(myValue);


I hope this helps send you in the right direction.

- MJD

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: Monday, February 06, 2006 8:21 AM
To: POI Users List
Subject: setting cell to pourcentage type

Hi,

I would like to know what cell type I must set for contain pourcentage 
value ?

thanks

        Stéphane Purnelle

-----------------------------------
Stéphane PURNELLE                         [EMAIL PROTECTED]
Service Informatique       Corman S.A.           Tel : 00 32 087/342467
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