将excel字符串数据存储到数组列表

Question

I need to store excel cell data to an array list. I've managed to get the cell data as 2 strings (data of two columns). Now I need to store the string data to array list (or two). My code is as follows:

XSSFWorkbook wb = new XSSFWorkbook(fis);
XSSFSheet sh = wb.getSheetAt(0);

int  i;
for (i=0; i <= sh.getLastRowNum(); i++)

    {

XSSFRow r = sh.getRow(i);

//Data from first column.
String col1 = r.getCell(0).getStringCellValue();

//Data from second column.
double col2 = r.getCell(1).getNumericCellValue();
}

Now I need to store them ( col1 and col2 ) into array list. How can this be done? I need to use this array to write the data into seperate sheet later.

Thanks for your help.

Answer 1

You can use List data = new ArrayList() , but when you'll be trying to get data from this list you'll need to cast each object to String or double which can be unsafe, if you'll be inserting new values you'll get a warning about raw type. In your case maybe consider using Map<String, Double> , it'll be more safe and natural.