UI Control Sample | JavaFX Tutorials and Documentation

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/*
 * Copyright (c) 2011, 2013 Oracle and/or its affiliates.
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 *
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 *
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package checkboxsample;
import javafx.application.Application;
import javafx.scene.layout.StackPane;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class CheckboxSample extends Application {
 Rectangle rect = new Rectangle(90, 30);
 final String[] names = new String[]{"Security", "Project", "Chart"};
 final Image[] images = new Image[names.length];
 final ImageView[] icons = new ImageView[names.length];
 final CheckBox[] cbs = new CheckBox[names.length];
 public static void main(String[] args) {
 launch(args);
 }
 @Override
 public void start(Stage stage) {
 Scene scene = new Scene(new Group());
 stage.setTitle("Checkbox Sample");
 stage.setWidth(230);
 stage.setHeight(120);
 rect.setArcHeight(10);
 rect.setArcWidth(10);
 rect.setFill(Color.rgb(41, 41, 41));
 for (int i = 0; i < names.length; i++) {
 final Image image = images[i] =
 new Image(getClass().getResourceAsStream(names[i] + ".png"));
 final ImageView icon = icons[i] = new ImageView();
 final CheckBox cb = cbs[i] = new CheckBox(names[i]);
 cb.selectedProperty().addListener(new ChangeListener<Boolean>() {
 public void changed(ObservableValue ov,
 Boolean old_val, Boolean new_val) {
 icon.setImage(new_val ? image : null);
 }
 });
 }
 VBox vbox = new VBox();
 vbox.getChildren().addAll(cbs);
 vbox.setSpacing(5);
 HBox hbox = new HBox();
 hbox.getChildren().addAll(icons);
 hbox.setPadding(new Insets(0, 0, 0, 5));
 StackPane stack = new StackPane();
 stack.getChildren().add(rect);
 stack.getChildren().add(hbox);
 StackPane.setAlignment(rect, Pos.TOP_CENTER); 
 HBox root = new HBox();
 root.getChildren().add(vbox);
 root.getChildren().add(stack);
 root.setSpacing(40);
 root.setPadding(new Insets(20, 10, 10, 20));
 ((Group) scene.getRoot()).getChildren().add(root);
 stage.setScene(scene);
 stage.show();
 }
}