Class.forName("oracle.jdbc.driver.OracleDriver");
            String driver = "jdbc:oracle:thin:@localhost:1521:orcl";
            cn = DriverManager.getConnection(driver, "system", "Contrasena1");

            pst = cn.prepareCall("{call mod_comercios(?,?,?,?,?)}");
            pst.setInt(1, idcomercio);
            pst.setString(2, zona);
            pst.setFloat(3, pago);
            pst.setString(4, tipo);
            pst.setFloat(5, recaudacion);
            pst.registerOutParameter("inOutParam", Types.INTEGER);
            pst.execute();