private void PrevBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_PrevBtnActionPerformed

        setResponse();
        if(qIndex > 0)
        {
            ShowQuestion( quiz.questionList.get(qIndex -1));
            qIndex--;
        }
    }//GEN-LAST:event_PrevBtnActionPerformed