public void Modificar(Cliente c) throws SQLException{

     String query = "BEGIN pack_cliente.modificar(?,?,?,?); END;";
        conexion.abrirConexion();
        cst = conexion.getConexion().prepareCall(query);

         
        cst.setString(1, c.getNombre());
        cst.setString(2, c.getApellido());
        cst.setString(3, c.getCedula_o_RUC());
        cst.setString(4, c.getTelefono());
        cst.execute();
        cst.close();



     }