private void refreshActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_refreshActionPerformed
        box1.setText("");
        box2.setText("");
        box3.setText("");
        box4.setText("");
        box5.setText("");
        box6.setText("");
        box7.setText("");
        box8.setText("");
        box9.setText("");
        i = 0;
        b1 = 0;
        b2 = 0;
        b3 = 0;
        b4 = 0;
        b5 = 0;
        b6 = 0;
        b7 = 0;
        b8 = 0;
        b9 = 0;
        box1.setForeground(Color.BLACK);
        box2.setForeground(Color.BLACK);
        box3.setForeground(Color.BLACK);
        box4.setForeground(Color.BLACK);
        box5.setForeground(Color.BLACK);
        box6.setForeground(Color.BLACK);
        box7.setForeground(Color.BLACK);
        box8.setForeground(Color.BLACK);
        box9.setForeground(Color.BLACK);
    }//GEN-LAST:event_refreshActionPerformed