@FXML
    public void addQuizButton(ActionEvent evt) throws SQLException
    {
        if(!questionx.getText().equals("") || !answerx.getText().equals("") || !option_1x.getText().equals("") || !option_2x.getText().equals("") || !option_3x.getText().equals("") || !option_4x.getText().equals(""))
        {
            addEntry();
            questionx.setText("");
            answerx.setText("");
            option_1x.setText("");
            option_2x.setText("");
            option_3x.setText("");
            option_4x.setText("");
            imagex.setText("");
        }
        else
        {
            MessageBox.show(null,"Please fill all textfields marked as important form.\n", "Error", MessageBox.ICON_ERROR | MessageBox.OK);
        }
    }