1. JavaFX Tutorial
2. JavaFX Overview
3. Your First JavaFX Application
4. JavaFX Stage
5. JavaFX Scene
6. JavaFX Node
7. JavaFX Properties
8. JavaFX FXML
9. JavaFX CSS Styling
10. JavaFX ImageView
11. JavaFX Text
12. JavaFX Fonts
13. JavaFX Hyperlink
14. JavaFX Label
15. JavaFX Button
16. JavaFX MenuButton
17. JavaFX SplitMenuButton
18. JavaFX ToggleButton
19. JavaFX RadioButton
20. JavaFX CheckBox
21. JavaFX ChoiceBox
22. JavaFX ComboBox
23. JavaFX ListView
24. JavaFX DatePicker
25. JavaFX ColorPicker
26. JavaFX TextField
27. JavaFX PasswordField
28. JavaFX Slider
29. JavaFX TextArea
30. JavaFX ToolBar
31. JavaFX Tooltip
32. JavaFX ProgressBar
33. JavaFX FileChooser
34. JavaFX DirectoryChooser
35. JavaFX Accordion
36. JavaFX TitledPane
37. JavaFX SplitPane
38. JavaFX TabPane
39. JavaFX ScrollPane
40. JavaFX Group
41. JavaFX Region
42. JavaFX Pane
43. JavaFX HBox
44. JavaFX VBox
45. JavaFX Separator
46. JavaFX FlowPane
47. JavaFX TilePane
48. JavaFX GridPane
49. JavaFX MenuBar
50. JavaFX ContexMenu
51. JavaFX WebView
52. JavaFX PieChart
53. JavaFX TableView
54. JavaFX TreeView
55. JavaFX TreeTableView
56. JavaFX HTMLEditor
57. JavaFX Pagination
58. JavaFX BarChart
59. JavaFX StackedBarChart
60. JavaFX ScatterChart
61. JavaFX LineChart
62. JavaFX AreaChart
63. JavaFX StackedAreaChart
64. JavaFX Color
65. JavaFX 2D
66. JavaFX Effects
67. JavaFX 3D
68. JavaFX Transformation
69. JavaFX Animation
70. JavaFX Media - JavaFX Video and Audio Support
71. JavaFX Canvas
72. JavaFX Drag and Drop
73. JavaFX Concurrency

• Creating a Group
• Adding Components to a Group
• Adding a Group to the Scene Graph

The JavaFX Group component is a container component which applies no special layout to its children. All child components (nodes) are positioned at 0,0 . A JavaFX Group component is typically used to apply some effect or transformation to a set of controls as a whole - as a group. If you need some layout to the children inside the Group, nest them inside layout components and add the layout components to the Group. The JavaFX Group component is represented by the class javafx.scene.Group .

Creating a Group

You create a JavaFX Group instance via its constructor. Here is a JavaFX Group instantiation example:

Group group = new Group();

Adding Components to a Group

You can add components to a JavaFX Group by obtaining its list of children and adding the children to that list. Here is an example of adding children to a JavaFX Group:

Button button1 = new Button("Button Number 1");
Button button2 = new Button("Button 2");

Group group = new Group();

group.getChildren().add(button1);
group.getChildren().add(button2);

Adding a Group to the Scene Graph

To make a JavaFX Group instance visible it must be added to the JavaFX scene graph. That means adding the Group instance to a Scene object or adding the Group instance to a layout component which is then added to a Scene object.

Here is an example of adding a JavaFX Group instance to the JavaFX scene graph:

package com.jenkov.javafx.layouts;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;


public class GroupExperiments extends Application  {


    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("HBox Experiment 1");

        Button button1 = new Button("Button Number 1");
        Button button2 = new Button("Button 2");

        Group group = new Group();

        group.getChildren().add(button1);
        group.getChildren().add(button2);

        Scene scene = new Scene(group, 200, 100);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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

The application resulting from running the above code would look similar to this:

As you can see, the two buttons are positioned on top of each other, because both buttons are positioned at 0,0 inside the Group component.