Java: method that stores the parameters [closed]

I'm doing a DAO and I need to insert in two different tables in the BDs. I know I can do it with Autocommit . But the idea is to go through the different inserts as a parameter and use the Autocommit in the method.  The code simplifies it by removing the try and catch.

The method you program is this:

 public void reserva(String query) {

   Reserva rsv = new Reserva();
   dateString = sdfr.format(rsv.getFechaLlegada());
   PreparedStatement busquedaStmt = null;
   String busquedaString = query;

   busquedaStmt = 
   con.getConexion().prepareStatement(busquedaString);

   busquedaStmt.setString(1, dateString);
   ResultSet rs = busquedaStmt.executeQuery();

 }

And I would use it in servlet like this:

    ReservaDAOImp reserva = new ReservaDAOImp();
    reserva.reserva("INSERT INTO T_cliente (cliente) values (?)")
    reserva.reserva("INSERT INTO T_reserva (fechaLlegada) values
    (?)");