Advanced Java Chapter 14 Assignment

Predict the output of the following program, how will the buttons be arranged? import javafx.application.Application; import javafx.collections.ObservableList; import javafx.geometry.Insets; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.TextField; import javafx.stage.Stage; import javafx.scene.layout.VBox; public class VBoxExample extends Application { @Override public void start(Stage stage) { //creating a button field Button btn1 = new Button("Button1"); //creating a button field Button btn2 = new Button("Button2"); //creating a button field Button btn3 = new Button("Button3"); //Instantiating the HBox class VBox vbox = new VBox(); //Setting the space between the nodes of a HBox pane vbox.setSpacing(10); //Setting the margin to the nodes vbox.setMargin(btn1, new Insets(20, 20, 20, 20)); vbox.setMargin(btn2, new Insets(20, 20, 20, 20)); vbox.setMargin(btn3, new Insets(20, 20, 20, 20)); //retrieving the observable list of the HBox ObservableList list = vbox.getChildren(); //Adding all the nodes to the observable list (HBox) list.addAll(btn1, btn2, btn3); //Creating a scene object Scene scene = new Scene(vbox); //Setting title to the Stage stage.setTitle("Hbox Example"); //Adding scene to the stage stage.setScene(scene); //Displaying the contents of the stage stage.show(); } public static void main(String args[]){ launch(args); } }

All the buttons will be placed in a single column one after another

Using JavaFx Line Class, what properties do you need to set to draw a line?

Line ln = new Line(); line.setStartX(numeric value); line.setStartY(numeric value); line.setEndX(numeric value); line.setEndY(numeric value);

JavaFx Application has three major components?

Stage Scene Nodes

Predict the output of the below program? import javafx.beans.property.DoubleProperty; import javafx.beans.property.SimpleDoubleProperty; public class BidirectionalBindingDemo { public static void main(String[] args) { DoubleProperty d1 = new SimpleDoubleProperty(1); DoubleProperty d2 = new SimpleDoubleProperty(2); d1.bindBidirectional(d2); d1.setValue(50.1); System.out.println("d1 is " + d1.getValue() + " and d2 is " + d2.getValue()); } }

d1 is 50.1 and d2 is 50.1

Predict the output of the following program? import javafx.application.Application; import javafx.stage.Stage; public class Test extends Application { public Test() { System.out.println("Test constructor is invoked"); } @Override // Override the start method in the Application class public void start(Stage primaryStage) { System.out.println("start method is invoked"); } public static void main(String[] args) { System.out.println("launch application"); Application.launch(args); } }

launch application Test constructor is invoked Start method is invoked