private static void outputTxt(String ExportFailStudentMsg){
 FileSystemView fsv = FileSystemView.getFileSystemView();
 File com=fsv.getHomeDirectory(); 
 System.out.println(com.getPath());
 File f=new File(com.getPath()+"\\failmsg.txt");
 FileOutputStream fos;
 try {
 fos = new FileOutputStream(f);
 OutputStreamWriter dos=new OutputStreamWriter(fos);
 dos.write(ExportFailStudentMsg);
 dos.close();
 } catch (FileNotFoundException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }
 }