public QuestionDAOImpl(){
        q = null;
        try
        {
           FileInputStream fileIn = new FileInputStream("question.ser");
           ObjectInputStream in = new ObjectInputStream(fileIn);
           q = (Question) in.readObject();
           in.close();
           fileIn.close();
        }catch(IOException i)
        {
           i.printStackTrace();
           return;
        }catch(ClassNotFoundException c)
        {
           System.out.println("Employee class not found");
           c.printStackTrace();
           return;
        }
	}