mydomain
No ADS
No ADS

JavaFX ChoiceBox Tutorial with Examples

  1. JavaFX ChoiceBox
  2. ChoiceBox Example
  3. ChoiceBox and Event

1. JavaFX ChoiceBox

2. ChoiceBox Example

No ADS
ChoiceBoxDemo.java
package org.o7planning.javafx.choicebox;

import org.o7planning.javafx.model.Language;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.Label;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;

public class ChoiceBoxDemo extends Application {

    @Override
    public void start(Stage primaryStage) {

        Language vietnamese = new Language("vi", "Vietnamese");
        Language english = new Language("en", "English");
        Language russian = new Language("ru", "Russian");

        FlowPane root = new FlowPane();

        Label label = new Label("Select Language:");

        ObservableList<Language> languages //
                = FXCollections.observableArrayList(vietnamese, english, russian);

        ChoiceBox<Language> choiceBox = new ChoiceBox<Language>(languages);

        root.setPadding(new Insets(10));

        root.getChildren().addAll(label, choiceBox);
        root.setPadding(new Insets(10));
        root.setHgap(10);

        primaryStage.setTitle("ChoiceBox (o7planning.org)");
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

}
Language.java
package org.o7planning.javafx.model;

public class Language {

    private String code;
    private String name;
    private String greeting;

    public Language() {

    }

    public Language(String code, String name) {
        this.code = code;
        this.name = name;
    }

    public Language(String code, String name, String greeting) {
        this.code = code;
        this.name = name;
        this.greeting = greeting;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGreeting() {
        return greeting;
    }

    public void setGreeting(String greeting) {
        this.greeting = greeting;
    }

    @Override
    public String toString() {
        return this.name;
    }

}
Running the example:
ChoiceBox & Separator:
You can also add a Separator to separate the elements of ChoiceBox.
ChoiceBoxSeparatorDemo.java
package org.o7planning.javafx.choicebox;

import org.o7planning.javafx.model.Language;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.Label;
import javafx.scene.control.Separator;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;

public class ChoiceBoxSeparatorDemo extends Application {

    @Override
    public void start(Stage primaryStage) {

        Language vietnamese = new Language("vi", "Vietnamese");
        Language english = new Language("en", "English");
        Language russian = new Language("ru", "Russian");
        Separator separator = new Separator();

        FlowPane root = new FlowPane();

        Label label = new Label("Select Language:");

        ObservableList<?> languages //
                = FXCollections.observableArrayList(vietnamese, separator, english, russian);
       
        ChoiceBox<?> choiceBox = new ChoiceBox<>(languages);

        root.setPadding(new Insets(10));

        root.getChildren().addAll(label, choiceBox);
        root.setPadding(new Insets(10));
        root.setHgap(10);

        primaryStage.setTitle("ChoiceBox (o7planning.org)");
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

}

3. ChoiceBox and Event

// Change Index Listener
choiceBox.getSelectionModel()
           .selectedIndexProperty()
           .addListener(ChangeListener<? super Number>);

// Change Item Listener     
choiceBox.getSelectionModel()
           .selectedItemProperty()
           .addListener(ChangeListener<? super T>);
ChoiceBoxEventDemo.java
package org.o7planning.javafx.choicebox;

import org.o7planning.javafx.model.Language;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.Label;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;

public class ChoiceBoxEventDemo extends Application {

    @Override
    public void start(Stage primaryStage) {

        Language vietnamese = new Language("vi", "Vietnamese", "Xin Chào");
        Language english = new Language("en", "English", "Hello");
        Language russian = new Language("ru", "Russian", "привет");

        FlowPane root = new FlowPane();

        Label label = new Label("Select Language:");
        Label greetingLabel = new Label("");

        ObservableList<Language> languages //
                = FXCollections.observableArrayList(vietnamese, english, russian);

        ChoiceBox<Language> choiceBox = new ChoiceBox<Language>(languages);

        ChangeListener<Language> changeListener = new ChangeListener<Language>() {

            @Override
            public void changed(ObservableValue<? extends Language> observable, //
                    Language oldValue, Language newValue) {
                if (newValue != null) {
                    greetingLabel.setText(newValue.getGreeting());
                }
            }
        };
        // Selected Item Changed.
        choiceBox.getSelectionModel().selectedItemProperty().addListener(changeListener);

        root.setPadding(new Insets(10));

        root.getChildren().addAll(label, choiceBox, greetingLabel);
        root.setPadding(new Insets(10));
        root.setHgap(10);

        primaryStage.setTitle("ChoiceBox (o7planning.org)");
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

}
No ADS

JavaFX Tutorials

Show More
No ADS