private void startBtnMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_startBtnMouseClicked

        logic.initialize();
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                btn_array[i][j].setIcon(null);
                btn_array[i][j].setEnabled(true);
            }
        }
        startBtn.setIcon(new ImageIcon(getClass().getResource("/images/EMOTICON SMILE.png")));
        wonLbl.setText("");

    }//GEN-LAST:event_startBtnMouseClicked