Unable to see rows in tableview

Question

I tried to add rows to my table dynamically using ObservableList but it is not visible in table.I tried to print the data in ObservableList which is printing as expected. I even tried to initialize but not visible.
I used Scene Builder (1.1) and NetBeans 7.4 .
fx:id is all correct according to my understanding.
Code Snippets
   @FXML
    private final  TableView<Person> table; // Person is a class with two string variables firstName and lastName
    @FXML
     private final TableColumn<Person,String> firstNameColumn; 
    @FXML
     private final TableColumn<Person,String> lastNameColumn;
      private final ObservableList<Person> persons;
        this.persons = FXCollections.observableArrayList(new Person("Lijo", "Jose"));
        table=new TableView<>();
        firstNameColumn=new TableColumn("First Name");
        lastNameColumn=new TableColumn("Last Name");
        firstNameColumn.setCellValueFactory( new PropertyValueFactory<Person,String>("firstName"));
        lastNameColumn.setCellValueFactory( new PropertyValueFactory<Person,String>("lastName"));
        table.setItems(persons);
        assert table.getItems() == persons;
       boolean add= persons.add(new Person(firstNameField.getText(), lastNameField.getText()));          
       System.out.println("Adding Row..."+add );
       table.setItems(persons);
<TableView fx:id="table" layoutX="26.0" layoutY="14.0" prefHeight="186.0" prefWidth="200.00009999999747">
<columns>
<TableColumn id="firstNameColumn" prefWidth="100.0" text="First Name" fx:id="firstNameColumn" />
<TableColumn id="lastNameColumn" prefWidth="100.0" text="Last Name" fx:id="lastNameColumn" />
</columns>
</TableView>
Please help !!
Thanks in Advance
    Lijo Jose

Answer 1

Hi All,
I am a newbie to JavaFX.I updated the code as suggested but still not working. Complete code for the application is copied below  .
Please Help!!
Try2.java
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Try2 extends Application {
    @Override
    public void start(Stage stage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
        Scene scene = new Scene(root);
        stage.setScene(scene);
        stage.show();
     * The main() method is ignored in correctly deployed JavaFX application.
     * main() serves only as fallback in case the application can not be
     * launched through deployment artifacts, e.g., in IDEs with limited FX
     * support. NetBeans ignores main().
     * @param args the command line arguments
    public static void main(String[] args) {
   launch(args);
FXMLDocumentController.java
import java.net.URL;
import java.util.ResourceBundle;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
* @author admin
public class FXMLDocumentController implements Initializable {
    @FXML
    private TextField firstName;
    @FXML
    private TextField lastName;      
    @FXML
    private TableView<Person> table;
    @FXML
    private TableColumn<Person,String> firstNameColumn;
    @FXML
    private TableColumn<Person,String> lasttNameColumn;
    @FXML
    private Label label;
    private final ObservableList persons=FXCollections.observableArrayList(new Person("Lijo", "Jose"));
    @FXML   
private void addButtonAction(ActionEvent event) {
        boolean add = persons.add(new Person(firstName.getText(),lastName.getText()));
        System.out.println("Adding .."+add);     
        label.setText("Added..");      
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        // TODO
        table.setItems(persons);
FXMLDocument.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="AnchorPane" prefHeight="235.0" prefWidth="286.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="try2.FXMLDocumentController">
  <children>
    <Button fx:id="button" layoutX="217.0" layoutY="23.0" onAction="#addButtonAction" text="Add" />
    <TextField id="lastname" fx:id="firstName" layoutX="14.0" layoutY="23.0" prefWidth="82.0" promptText="First Name" />
    <TextField fx:id="lastName" layoutX="113.0" layoutY="22.0" prefWidth="82.0" promptText="Last Name" />
    <TableView fx:id="table" layoutX="14.0" layoutY="58.0" prefHeight="145.0" prefWidth="190.0">
      <columns>
        <TableColumn maxWidth="5000.0" minWidth="10.0" prefWidth="95.0" text="First Name" fx:id="firstNameColumn" />
        <TableColumn maxWidth="5000.0" minWidth="10.0" prefWidth="95.0" text="Last Name" fx:id="lasttNameColumn" />
      </columns>
    </TableView>
    <Label fx:id="label" layoutX="14.0" layoutY="215.0" prefHeight="13.0" prefWidth="113.0" text="">
      <font>
        <Font size="10.0" />
      </font>
    </Label>
  </children>
</AnchorPane>
Person.java
class Person {
    private String firstName,lastName;
    Person(String firstName, String lastName) {
        this.firstName=firstName;
        this.lastName=lastName;
     * @return the firstName
    public String getFirstName() {
        return firstName;
     * @param firstName the firstName to set
    public void setFirstName(String firstName) {
        this.firstName = firstName;
     * @return the lastName
    public String getLastName() {
        return lastName;
Thanks
Lijo Jose