随笔档案

            log  =    new  PrintWriter( new  FileOutputStream(fl, true ), true );
            SimpleDateFormat df  =   new  SimpleDateFormat( " yyyy.MM.dd 'at' hh:mm:ss\n " );
            Date now  =   new  Date();
            String dateformat  =  df.format(now)
            BufferedWriter bf   =   new  BufferedWriter( new  FileWriter(fl,  true ));
            bf.append(dateformat);
            bf.close();
            log.println( " start connection databse: " );
            log.println( " driver name: " .concat(driveName);