JAVAFX BASICS - Introduction to Java Programming: Comprehensive Version - page 577

The second hand, minute hand, and hour hand are the lines created in lines 114-139. The
paintClock() method places all these shapes in the pane using the addAll method in a list
(line 142). Because the paintClock() method is invoked whenever a new property ( hour ,
minute , second , w , and h ) is set (lines 27, 38, 49, 60, 71, 82, 95), before adding new contents
into the pane, the old contents are cleared from the pane (line 141).

K EY T ERMS

AWT 536
bidirectional binding

property getter method 543

544 primary stage 537

bindable object 542 shape 539

Swing 536
value getter method

binding object 542

binding property 542 543

JavaFX 536
node 539
observable object

value setter method 543

UI control 539
unidirectional binding

542 544

pane 539

C HAPTER S UMMARY
1.

JavaFX is the new framework for developing rich Internet applications. JavaFX com-
pletely replaces Swing and AWT.

2.

A main JavaFX class must extend javafx.application.Application and imple-
ment the start method. The primary stage is automatically created by the JVM and
passed to the start method.

3.

A stage is a window for displaying a scene. You can add nodes to a scene. Panes, con-
trols, and shapes are nodes. Panes can be used as the containers for nodes.

4.

A binding property can be bound to an observable source object. A change in the source
object will be automatically reflected in the binding property. A binding property has a
value getter method, value setter method, and property getter method.

5. The Node class defines many properties that are common to all nodes. You can apply
these properties to panes, controls, and shapes.

6. You can create a Color object with the specified red, green, blue components, and
opacity value.

7.

You can create a Font object and set its name, size, weight, and posture.

8.

The javafx.scene.image.Image class can be used to load an image and this image
can be displayed in an ImageView object.

9.

JavaFX provides many types of panes for automatically laying out nodes in a desired loca-
tion and size. The Pane is the base class for all panes. It contains the getChildren()
method to return an ObservableList . You can use ObservableList 's add(node)
and addAll(node1, node2, ...) methods for adding nodes into a pane.