我最近開始學(xué)習(xí) JavaFX，并從一本使用 JDK 9 的書中獲得了這段代碼。當(dāng)我運行該程序時，我遇到了錯誤。我查看了其他代碼并嘗試在啟動方法中添加“@Override”和“拋出異?！?，但是我得到了同樣的錯誤。構(gòu)建程序時我沒有收到任何錯誤。如果有幫助：我正在使用 JDK 11.0.2 和來自 openjfx.io 的 JavaFX。import javafx.application.*;import javafx.scene.*;importjavafx.stage.*;import javafx.scene.layout.*;class JavaFXSkel extends Application{public static void main(String[] args){    System.out.println("Launching JavaFX Application");    launch(args);}public void init(){    System.out.println("Inside the init() method");}public void start(Stage myStage){    System.out.println("Inside the start() method");    myStage.setTitle("JavaFX Skeleton");    //makes a root node with a flow layout pane    FlowPane rootNode = new FlowPane();    //Crate a scne    Scene myScene = new Scene(rootNode, 300, 200);    //Set teh scene on stage    myStage.setScene(myScene);    //Show the stage and the scene    myStage.show();}public void stop(){    System.out.println("Inside the stop() method");}}錯誤信息：Exception in Application constructorException in thread "main" java.lang.reflect.InvocationTargetExceptionat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:566)at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)Caused by: java.lang.RuntimeException: Unable to construct Application instance: class JavaFXSkelat javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:890)at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)