import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.usermodel.Sheet; import java.io.*; public class Sample6_1{ public static void main(String[] args){ Workbook wb = new HSSFWorkbook(); Sheet sheet = wb.createSheet(); sheet.setColumnWidth(2, 4096); sheet.setColumnWidth(3, 768); FileOutputStream out = null; try{ out = new FileOutputStream("sample6_1.xls"); wb.write(out); }catch(IOException e){ System.out.println(e.toString()); }finally{ try { out.close(); }catch(IOException e){ System.out.println(e.toString()); } } } }