Question

I am creating Excel file on the basis of CSV file.for reading CSV file,i am using Opencsv API and Apache POI.In my csv contain 65537 row.

class Test {
public static void main(String[] args) throws IOException {
    Workbook wb = new HSSFWorkbook();
    CreationHelper helper = wb.getCreationHelper();
    Sheet sheet = wb.createSheet("new sheet");

    CSVReader reader = new CSVReader(new FileReader("SampleData.csv"));
    String[] line;
    int r = 0;int count=0;
    while ((line = reader.readNext()) != null) {
        Row row = sheet.createRow((short) r++);
        count=count+1;
         System.out.println("count-"+count);
        for (int i = 0; i < line.length; i++)
            row.createCell(i)
               .setCellValue(helper.createRichTextString(line[i]));
    }

    // Write the output to a file
    FileOutputStream fileOut = new FileOutputStream("workbook.xls");
    wb.write(fileOut);
    fileOut.close();
}}

when i run this program it give me following error:

Exception in thread "main" java.lang.IllegalArgumentException: Invalid row number (-32768) outside allowable range (0..65535)at org.apache.poi.hssf.usermodel.HSSFRow.setRowNum(HSSFRow.java:232)
    at org.apache.poi.hssf.usermodel.HSSFRow.<init>(HSSFRow.java:86)
    at org.apache.poi.hssf.usermodel.HSSFRow.<init>(HSSFRow.java:70)
    at org.apache.poi.hssf.usermodel.HSSFSheet.createRow(HSSFSheet.java:205)
    at org.apache.poi.hssf.usermodel.HSSFSheet.createRow(HSSFSheet.java:71)
    at com.arosys.utilityclasses.Test.main(Test.java:23)Java Result: 1

I tried to trace how much row it support i found it only support 32768 and also tried for less number of row,it works nicely and create excel file.

please help me to sort out this problem,if my csv contain 65536 row then how i am bale to write excel file(Xls).

Thanks

Answer 1

Why are you casting the row num to short in the following line

 Row row = sheet.createRow((short) r++);

Leave it as int