Java Reference
In-Depth Information
L
ISTING
16.8
ComboBoxDemo.java
1
import
javafx.application.Application;
2
import
javafx.stage.Stage;
3
import
javafx.collections.FXCollections;
4
import
javafx.collections.ObservableList;
5
import
javafx.scene.Scene;
6
import
javafx.scene.control.ComboBox;
7
import
javafx.scene.control.Label;
8
import
javafx.scene.image.ImageView;
9
import
javafx.scene.layout.BorderPane;
10
11
public class
ComboBoxDemo
extends
Application {
12
// Declare an array of Strings for flag titles
13
private
String[] flagTitles = {
"Canada"
,
"China"
,
"Denmark"
,
countries
14
"France"
,
"Germany"
,
"India"
,
"Norway"
,
"United Kingdom"
,
15
"United States of America"
};
16
17
// Declare an ImageView array for the national flags of 9 countries
18
private
ImageView[] flagImage = {
new
ImageView(
"image/ca.gif"
),
image views
19
new
ImageView(
"image/china.gif"
),
20
new
ImageView(
"image/denmark.gif"
),
21
new
ImageView(
"image/fr.gif"
),
22
new
ImageView(
"image/germany.gif"
),
23
new
ImageView(
"image/india.gif"
),
24
new
ImageView(
"image/norway.gif"
),
25
new
ImageView(
"image/uk.gif"
),
new
ImageView(
"image/us.gif"
)};
26
27
// Declare an array of strings for flag descriptions
28
private
String[] flagDescription =
new
String[
9
];
description
29
30
// Declare and create a description pane
31
private
DescriptionPane descriptionPane =
new
DescriptionPane();
combo box
32
33
// Create a combo box for selecting countries
34
private
ComboBox<String> cbo =
new
ComboBox<>();
// flagTitles;
35
36 @Override
// Override the start method in the Application class
37
public void
start(Stage primaryStage) {
38
// Set text description
39 flagDescription[
0
] =
"The Canadian national flag ..."
;
40 flagDescription[
1
] =
"Description for China ... "
;
41 flagDescription[
2
] =
"Description for Denmark ... "
;
42 flagDescription[
3
] =
"Description for France ... "
;
43 flagDescription[
4
] =
"Description for Germany ... "
;
44 flagDescription[
5
] =
"Description for India ... "
;
45 flagDescription[
6
] =
"Description for Norway ... "
;
46 flagDescription[
7
] =
"Description for UK ... "
;
47 flagDescription[
8
] =
"Description for US ... "
;
48
49
// Set the first country (Canada) for display
50 setDisplay(
0
);
51
52
// Add combo box and description pane to the border pane
53 BorderPane pane =
new
BorderPane();
54
55 BorderPane paneForComboBox =
new
BorderPane();
56 paneForComboBox.setLeft(
new
Label(
"Select a country: "
));
57 paneForComboBox.setCenter(cbo);
58 pane.setTop(paneForComboBox);
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