Tableview + Database with checkbox

public class ClassController implements Initializable {
 
 
    
    @FXML
    private TextField filterField;
    @FXML
    private TableView<Person> table;
    @FXML
    private TableColumn<Person, SimpleStringProperty> nameColumn;
    @FXML
    private TableColumn<Person, Integer> gradeColumn;
 
    @FXML
    ObservableList<Person> oblist = FXCollections.observableArrayList();
 
    @Override
    public void initialize(URL url, ResourceBundle resourceBundle) {
 
        try {
            ResultSet rs;
 
            Connection con = DBConnector.getConnection();
 
            rs = con.createStatement().executeQuery("select * from 5a");
 
            while (rs.next()) {
 
                oblist.add(new Person(rs.getString("name"), rs.getString("grade")));
            }
        } catch (SQLException ex) {
            Logger.getLogger(Cat1prodController.class.getName()).log(Level.SEVERE, null, ex);
        }
 
 
        nameColumn.setCellValueFactory(new PropertyValueFactory<>("name"));
        gradeColumn.setCellValueFactory(new PropertyValueFactory<>("grade"));
 
        table.setItems(oblist);
    }
}

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Group;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.Slider;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
 
import java.io.IOException;
import java.net.URL;
import java.util.*;
 
public class ListsController {
 
    @FXML
    private ResourceBundle resources;
 
    @FXML
    private URL location;
    @FXML
    private CheckBox 5a;
 
    @FXML
    private CheckBox 5b;
 
    @FXML
    private CheckBox 5c;
 
    @FXML
    private VBox root_vbox;
 
 
    @FXML
    void initialize() {
 
}