如何调试崩溃的JavaFX程序

Question

我正在做一个大学项目，我们被要求选择一个要制作的程序，所以我选择教孩子们ABC。但当我添加媒体时，我的项目突然崩溃了，我试图找出原因，但没有用。

package project;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.image.ImageView;
import javafx.scene.layout.*;
import javafx.scene.media.*;
import javafx.stage.Stage;
public class Project extends Application {
    private String[] letters = {"A", "B", "C",
            "D", "E", "F", "G", "H",
            "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
            "S", "T", "U", "V", "W", "X", "Y", "Z"};
    private ImageView[] ImageViews = {
            new ImageView("a.jpg"),
            new ImageView("b.jpg"),
            new ImageView("c.jpg"),
            new ImageView("d.jpg"),
            new ImageView("e.jpg"),
            new ImageView("f.jpg"),
            new ImageView("g.jpg"),
            new ImageView("h.jpg"),
            new ImageView("i.jpg"),
            new ImageView("j.jpg"),
            new ImageView("k.jpg"),
            new ImageView("l.jpg"),
            new ImageView("m.jpg"),
            new ImageView("n.jpg"),
            new ImageView("o.jpg"),
            new ImageView("p.jpg"),
            new ImageView("q.jpg"),
            new ImageView("r.jpg"),
            new ImageView("s.jpg"),
            new ImageView("t.jpg"),
            new ImageView("u.jpg"),
            new ImageView("v.jpg"),
            new ImageView("w.jpg"),
            new ImageView("x.jpg"),
            new ImageView("y.jpg"),
            new ImageView("z.jpg")    
    };
    protected MediaView[] sound = {
            new MediaView(new MediaPlayer(new Media("a.mp3"))),
            new MediaView(new MediaPlayer(new Media("b.mp3"))),
            new MediaView(new MediaPlayer(new Media("c.mp3"))),
            new MediaView(new MediaPlayer(new Media("d.mp3"))),
            new MediaView(new MediaPlayer(new Media("e.mp3"))),
            new MediaView(new MediaPlayer(new Media("f.mp3"))),
            new MediaView(new MediaPlayer(new Media("g.mp3"))),
            new MediaView(new MediaPlayer(new Media("h.mp3"))),
            new MediaView(new MediaPlayer(new Media("i.mp3"))),
            new MediaView(new MediaPlayer(new Media("j.mp3"))),
            new MediaView(new MediaPlayer(new Media("k.mp3"))),
            new MediaView(new MediaPlayer(new Media("l.mp3"))),
            new MediaView(new MediaPlayer(new Media("m.mp3"))),
            new MediaView(new MediaPlayer(new Media("n.mp3"))),
            new MediaView(new MediaPlayer(new Media("o.mp3"))),
            new MediaView(new MediaPlayer(new Media("p.mp3"))),
            new MediaView(new MediaPlayer(new Media("q.mp3"))),
            new MediaView(new MediaPlayer(new Media("r.mp3"))),
            new MediaView(new MediaPlayer(new Media("s.mp3"))),
            new MediaView(new MediaPlayer(new Media("t.mp3"))),
            new MediaView(new MediaPlayer(new Media("u.mp3"))),
            new MediaView(new MediaPlayer(new Media("v.mp3"))),
            new MediaView(new MediaPlayer(new Media("w.mp3"))),
            new MediaView(new MediaPlayer(new Media("x.mp3"))),
            new MediaView(new MediaPlayer(new Media("y.mp3"))),
            new MediaView(new MediaPlayer(new Media("z.mp3")))
    };
    @Override
    public void start(Stage primaryStage) {
        ListView<String> l = new ListView<>
                (FXCollections.observableArrayList(letters));
        l.setPrefSize(300, 700);
        l.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
        FlowPane imagePane = new FlowPane(20, 20);
        BorderPane pane = new BorderPane();
        pane.setLeft(new ScrollPane(l));
        pane.setCenter(imagePane);
        l.getSelectionModel().selectedItemProperty().addListener(
                ov -> {
                    imagePane.getChildren().clear();
                    for (Integer i : l.getSelectionModel().getSelectedIndices()) {
                        imagePane.getChildren().add(ImageViews[i]);
                    }
                });
        ListView<String> le = new ListView<>
                (FXCollections.observableArrayList(letters));
        le.setPrefSize(300, 700);
        le.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
        FlowPane soundpane = new FlowPane(10, 10);
        pane.setCenter(soundpane);
        pane.setRight(new ScrollPane(le));
        l.getSelectionModel().selectedItemProperty().addListener(
                ov -> {
                    soundpane.getChildren().clear();
                    for (Integer i : l.getSelectionModel().getSelectedIndices()) {
                        soundpane.getChildren().add(sound[i]);
                    }
                });
        Scene scene = new Scene(pane, 500, 200);
        primaryStage.setTitle("Letters");
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    public static void main(String[] args) {
        launch(args);
    }
}

Answer 1

我的猜测只是处理能力。尝试语音合成而不是26个音频文件