如何使用javafx根据来自另一个组合框的点击值来设置组合框的值

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) {
        // 创建组合框对象
        ComboBox<String> sourceComboBox = new ComboBox<>();
        ComboBox<String> targetComboBox = new ComboBox<>();

        // 设置sourceComboBox的选项列表
        sourceComboBox.setItems(FXCollections.observableArrayList("Option 1", "Option 2", "Option 3"));

        // 添加事件监听器
        sourceComboBox.setOnAction(event -> {
            // 获取sourceComboBox的当前选择值
            String selectedValue = sourceComboBox.getValue();

            // 根据选择值设置targetComboBox的值
            if (selectedValue.equals("Option 1")) {
                targetComboBox.setItems(FXCollections.observableArrayList("Target Option 1", "Target Option 2"));
            } else if (selectedValue.equals("Option 2")) {
                targetComboBox.setItems(FXCollections.observableArrayList("Target Option 3", "Target Option 4"));
            } else if (selectedValue.equals("Option 3")) {
                targetComboBox.setItems(FXCollections.observableArrayList("Target Option 5", "Target Option 6"));
            }
        });

        VBox root = new VBox(10);
        root.getChildren().addAll(sourceComboBox, targetComboBox);

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

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