Demo POI

import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class book
{
    public static void main(String[] args) throws Exception
    {
        //HSSFWorkbook
        
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet hssfSheet =  wb.createSheet("Excel Template");
        Row row = hssfSheet.createRow(0);
        Cell cell1 = row.createCell(0);
        cell1.setCellType(Cell.CELL_TYPE_STRING);
        cell1.setCellValue("HSSFWorkbook");
        
        FileOutputStream out = new FileOutputStream(args[0]+"HSSFWorkbook.xls");
        wb.write(out);
        out.flush();
        out.close();
        
        
        //
       
        SXSSFWorkbook hwb = new SXSSFWorkbook(1000);
        hwb.setCompressTempFiles(true);
        SXSSFSheet sheet  = (SXSSFSheet) hwb.createSheet("Excel Template");
        SXSSFRow rowhead = (SXSSFRow) sheet.createRow(0);
        
        Cell xssfCell = rowhead.createCell(0);
        xssfCell.setCellType(Cell.CELL_TYPE_STRING);
        xssfCell.setCellValue("SXSSFWorkbook");
        FileOutputStream fileOut = new FileOutputStream(args[0]+"SXSSFWorkbook.xlsx");
        hwb.write(fileOut);
        fileOut.flush();
        fileOut.close();
        
        
        
        Workbook hwb1 = new XSSFWorkbook();
        XSSFSheet xssfsheet = (XSSFSheet) hwb1.createSheet("Excel Template");
        Row r = xssfsheet.createRow(0);
        Cell ce = r.createCell(0);
        ce.setCellType(Cell.CELL_TYPE_STRING);
        ce.setCellValue("XSSFWorkbook");
        FileOutputStream fileOut1 = new FileOutputStream(args[0]+"XSSFWorkbook.xlsx");
        hwb1.write(fileOut1);
        fileOut1.flush();
        fileOut1.close();
    }
}