package tests;

import java.util.ArrayList;
import java.util.Collections;
import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;


 
public class TestVBoxUpdate extends Application {

    @Override
    public void start(final Stage stage) {
        stage.setTitle("Sample");
        Scene scene = new Scene(new Group(), 500, 500);

        final VBox labels = new VBox(5);
        final Label label1 = new Label("Label 1");
        final Label label2 = new Label("Label 2");
        labels.getChildren().addAll(label1, label2);
        
        final Button swapButton = new Button("Swap");
        swapButton.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent t) {
                labels.getChildren().setAll(label2, label1);
            }
        });

        VBox vbox = new VBox(20);
        vbox.getChildren().addAll(labels, swapButton);
        
        Group root = (Group) scene.getRoot();
        root.getChildren().clear();
        root.getChildren().add(vbox);
        stage.setScene(scene);
        stage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Application.launch(args);
    }


}