用于添加和删除复选框的JavaFX按钮

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class CheckBoxButtonExample extends Application {

    private VBox checkBoxContainer;

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("CheckBox Button Example");

        // 创建一个垂直布局容器
        checkBoxContainer = new VBox();
        checkBoxContainer.setPadding(new Insets(10));

        // 创建一个按钮，用于添加复选框
        Button addButton = new Button("Add CheckBox");
        addButton.setOnAction(event -> addCheckBox());

        // 创建一个按钮，用于删除复选框
        Button removeButton = new Button("Remove CheckBox");
        removeButton.setOnAction(event -> removeCheckBox());

        // 将按钮和复选框容器添加到布局中
        checkBoxContainer.getChildren().addAll(addButton, removeButton);

        // 创建一个场景，并将布局添加到场景中
        Scene scene = new Scene(checkBoxContainer, 300, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private void addCheckBox() {
        CheckBox checkBox = new CheckBox("New CheckBox");
        checkBoxContainer.getChildren().add(checkBox);
    }

    private void removeCheckBox() {
        int lastIndex = checkBoxContainer.getChildren().size() - 1;
        if (lastIndex >= 0) {
            checkBoxContainer.getChildren().remove(lastIndex);
        }
    }

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