public boolean csvBigFu40Export(ArrayList<LN40> list, String exportFullPath) {
   try {
     System.out.println("csvBigFu40Export");
     FileWriter writer = new FileWriter(exportFullPath);
     for (LN40 lotteryNum : list) {
       writer.append(lotteryNum.CSVLine());
     }
     writer.flush();
     writer.close();
     return true;
   } catch (Exception e) {
     // TODO: handle exception
     System.out.println(e.getMessage());
     return false;
   }
 }
 private void arrayDataCheckBF40() {
   for (LN40 dataObj : listOfBigFu40) {
     print(dataObj.description());
   }
 }