JavaFX Treetableview Examples

A simple JavaFX tutorial through simple snippets.

Example 1: Treetableview

Here are the code:

Step 1: Create Project

1. Open your favorite Java IDE.
2. In the menu go to File --> Create New Project.

Step 2: Dependencies

No dependencies are needed for this project.

Step 3: Write Code

Our code will comprise the following java files:

• Car.java
• TreeTableViewExample.java

1. In your editor or IDE, create a file known as Car.java.
2. Then add the following code:

(a). Car.java

We will need to create class using the class keyword as shown below.

public class Car {

Our class will have the following methods:

• Car(String brand, String model)
• String getBrand()
• void setBrand(String brand)
• String getModel()
• void setModel(String model)

Here is the full code:

package com.jenkov.javafx.treetableview;

public class Car {

    private String brand = null;
    private String model = null;

    public Car() {
    }

    public Car(String brand, String model) {
        this.brand = brand;
        this.model = model;
    }

    public String getBrand() {
        return brand;
    }

    public void setBrand(String brand) {
        this.brand = brand;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }
}

1. Next create another file known as TreeTableViewExample.java.
2. And add the following code:

(b). TreeTableViewExample.java

First, go ahead and add the following imports:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableView;
import javafx.scene.control.cell.TreeItemPropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

We will need to extend our class using the extend keyword. By doing that our class can make use of inheritance to derive properties and functions defined in the parent class.

public class TreeTableViewExample extends Application {

Our class will have the following methods:

• void main(String[] args)
• void start(Stage primaryStage)

Every Java Program must have a main method. This is the entry point of all Java applications include JavaFX. Add a main() method and inside it invoke the launch() function.

    public static void main(String[] args) {

In this particular class we will be overriding our void start(Stage primaryStage) method.
Prepend the code>@Override</code modifier to your method. Then add implementation code as follows:

    @Override
    public void start(Stage primaryStage) {
        TreeTableView<Car> treeTableView = new TreeTableView<Car>();

        TreeTableColumn<Car, String> treeTableColumn1 = new TreeTableColumn<>("Brand");
        TreeTableColumn<Car, String> treeTableColumn2 = new TreeTableColumn<>("Model");

        treeTableColumn1.setCellValueFactory(new TreeItemPropertyValueFactory<>("brand"));
        treeTableColumn2.setCellValueFactory(new TreeItemPropertyValueFactory<>("model"));

        treeTableView.getColumns().add(treeTableColumn1);
        treeTableView.getColumns().add(treeTableColumn2);

        TreeItem mercedes1 = new TreeItem(new Car("Mercedes", "SL500"));
        TreeItem mercedes2 = new TreeItem(new Car("Mercedes", "SL500 AMG"));
        TreeItem mercedes3 = new TreeItem(new Car("Mercedes", "CLA 200"));

        TreeItem mercedes = new TreeItem(new Car("Mercedes", "..."));
        mercedes.getChildren().add(mercedes1);
        mercedes.getChildren().add(mercedes2);

        TreeItem audi1 = new TreeItem(new Car("Audi", "A1"));
        TreeItem audi2 = new TreeItem(new Car("Audi", "A5"));
        TreeItem audi3 = new TreeItem(new Car("Audi", "A7"));

        TreeItem audi = new TreeItem(new Car("Audi", "..."));
        audi.getChildren().add(audi1);
        audi.getChildren().add(audi2);
        audi.getChildren().add(audi3);

        TreeItem cars = new TreeItem(new Car("Cars", "..."));
        cars.getChildren().add(audi);
        cars.getChildren().add(mercedes);

        treeTableView.setRoot(cars);

        VBox vbox = new VBox(treeTableView);

        Scene scene = new Scene(vbox);

        primaryStage.setScene(scene);
        primaryStage.setTitle("JavaFX TreeTableView Example");

        primaryStage.show();
    }

Here is the full code:

package com.jenkov.javafx.treetableview;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableView;
import javafx.scene.control.cell.TreeItemPropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class TreeTableViewExample extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        TreeTableView<Car> treeTableView = new TreeTableView<Car>();

        TreeTableColumn<Car, String> treeTableColumn1 = new TreeTableColumn<>("Brand");
        TreeTableColumn<Car, String> treeTableColumn2 = new TreeTableColumn<>("Model");

        treeTableColumn1.setCellValueFactory(new TreeItemPropertyValueFactory<>("brand"));
        treeTableColumn2.setCellValueFactory(new TreeItemPropertyValueFactory<>("model"));

        treeTableView.getColumns().add(treeTableColumn1);
        treeTableView.getColumns().add(treeTableColumn2);

        TreeItem mercedes1 = new TreeItem(new Car("Mercedes", "SL500"));
        TreeItem mercedes2 = new TreeItem(new Car("Mercedes", "SL500 AMG"));
        TreeItem mercedes3 = new TreeItem(new Car("Mercedes", "CLA 200"));

        TreeItem mercedes = new TreeItem(new Car("Mercedes", "..."));
        mercedes.getChildren().add(mercedes1);
        mercedes.getChildren().add(mercedes2);

        TreeItem audi1 = new TreeItem(new Car("Audi", "A1"));
        TreeItem audi2 = new TreeItem(new Car("Audi", "A5"));
        TreeItem audi3 = new TreeItem(new Car("Audi", "A7"));

        TreeItem audi = new TreeItem(new Car("Audi", "..."));
        audi.getChildren().add(audi1);
        audi.getChildren().add(audi2);
        audi.getChildren().add(audi3);

        TreeItem cars = new TreeItem(new Car("Cars", "..."));
        cars.getChildren().add(audi);
        cars.getChildren().add(mercedes);

        treeTableView.setRoot(cars);

        VBox vbox = new VBox(treeTableView);

        Scene scene = new Scene(vbox);

        primaryStage.setScene(scene);
        primaryStage.setTitle("JavaFX TreeTableView Example");

        primaryStage.show();
    }

}

Download

Download the code using the below links: