public void cbSupplyer(CurrentProduct currentProduct) {
    con = dbCon.geConnection();

    try {
      pst = con.prepareStatement("select * from Supplyer");
      rs = pst.executeQuery();
      while (rs.next()) {
        currentProduct.supplyerList = rs.getString(2);
      }
      pst.close();
      con.close();
      rs.close();
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }