JavaFX的属性经常通过绑定来综合。这是一种表达变量间关系的机制。可以将一个目标对象和一个源对象绑定，如果源对象中的值改变了，则目标对象也将自动改变。目标对象称为绑定对象或绑定属性，源对象称为可绑定对象或可观察对象。下。下列程序是对《Java 程序语言设计》其中一道习题的实现（原答案并不完整）：

 

1 import javafx.application.Application; 2 import javafx.scene.Scene; 3 import javafx.scene.layout.Pane; 4 import javafx.scene.paint.Color; 5 import javafx.scene.shape.Line; 6 import javafx.scene.shape.Rectangle; 7 import javafx.stage.Stage; 8  9 public class java1414 extends Application {10     @Override // Override the start method in the Application class11     public void start(Stage primaryStage) {12         Pane pane = new Pane();13         double paneWidth = 200;14         double paneHeight = 200;15 16         // Draw the front rectangle17         Rectangle r1 = new Rectangle();18         r1.xProperty().bind(pane.widthProperty().multiply(0.05));19         r1.yProperty().bind(pane.heightProperty().multiply(0.30));20         r1.widthProperty().bind(pane.widthProperty().multiply(0.75));21         r1.heightProperty().bind(pane.heightProperty().multiply(0.60));22         r1.setFill(new Color(1, 1, 1, 0));23         r1.setStroke(Color.BLACK);24 25         // Draw the back rectangle26         Rectangle r2 = new Rectangle();27         r2.xProperty().bind(pane.widthProperty().multiply(0.15));28         r2.yProperty().bind(pane.heightProperty().multiply(0.06));29         r2.widthProperty().bind(pane.widthProperty().multiply(0.75));30         r2.heightProperty().bind(pane.heightProperty().multiply(0.60));31         r2.setFill(new Color(1, 1, 1, 0));32         r2.setStroke(Color.BLACK);33 34         // Connect the corners35         Line line1 = new Line();36         line1.startXProperty().bind(pane.widthProperty().multiply(0.05));37         line1.startYProperty().bind(pane.heightProperty().multiply(0.30));38         line1.endXProperty().bind(pane.widthProperty().multiply(0.15));39         line1.endYProperty().bind(pane.heightProperty().multiply(0.06));40         Line line2 = new Line();41         line2.startXProperty().bind(pane.widthProperty().multiply(0.05));42         line2.startYProperty().bind(pane.heightProperty().multiply(0.90));43         line2.endXProperty().bind(pane.widthProperty().multiply(0.15));44         line2.endYProperty().bind(pane.heightProperty().multiply(0.66));45         Line line3 = new Line();46         line3.startXProperty().bind(pane.widthProperty().multiply(0.80));47         line3.startYProperty().bind(pane.heightProperty().multiply(0.30));48         line3.endXProperty().bind(pane.widthProperty().multiply(0.90));49         line3.endYProperty().bind(pane.heightProperty().multiply(0.06));50         Line line4 = new Line();51         line4.startXProperty().bind(pane.widthProperty().multiply(0.80));52         line4.startYProperty().bind(pane.heightProperty().multiply(0.90));53         line4.endXProperty().bind(pane.widthProperty().multiply(0.90));54         line4.endYProperty().bind(pane.heightProperty().multiply(0.66));55 56         pane.getChildren().addAll(r1, r2, line1, line2, line3, line4);57 58         // Create a scene and place it in the stage59         Scene scene = new Scene(pane, paneWidth, paneHeight);60         primaryStage.setTitle("Exercise14_14"); // Set the stage title61         primaryStage.setScene(scene); // Place the scene in the stage62         primaryStage.show(); // Display the stage63     }64 }