在HashSet迭代中动态创建javafx按钮。如何为每个按钮创建单独的actionEvent？

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.VBox;
import javafx.stage.Stage;

import java.util.HashSet;
import java.util.Iterator;

public class DynamicButtonCreation extends Application {

    @Override
    public void start(Stage primaryStage) {
        HashSet<String> elements = new HashSet<>();
        elements.add("Button 1");
        elements.add("Button 2");
        elements.add("Button 3");

        VBox vbox = new VBox();

        Iterator<String> iterator = elements.iterator();
        while (iterator.hasNext()) {
            String element = iterator.next();
            Button button = new Button(element);
            button.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent event) {
                    // 按钮的单击事件处理逻辑
                    System.out.println("Button clicked: " + element);
                }
            });
            vbox.getChildren().add(button);
        }

        Scene scene = new Scene(vbox, 200, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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