javafx将当前节点复制到另一个节点的功能

来自@fabian建议的代码:

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

/**
 *
 * @author Sedrick
 */
public class JavaFXApplication11 extends Application {

    @Override
    public void start(Stage primaryStage) {
        VBox vbox = new VBox();

        Button btn = new Button();
        btn.setText("Say 'Hello World'");
        btn.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                Button oldButton = (Button)event.getSource();                
                Button newButton = new Button("new Button");
                vbox.getChildren().add(newButton);
                newButton.setOnAction(oldButton.getOnAction());               
            }
        });


        vbox.getChildren().add(btn);

        StackPane root = new StackPane();
        root.getChildren().add(vbox);

        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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

}