为什么程序在JavaFX中会出现错误？[副本]

Question

我花了三天的时间来寻找答案，看视频和论坛帖子，但没有运气。请看这四张照片。它似乎只在问题有图像文件时才这样做。

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;
import javafx.scene.image.ImageView;
import javafx.scene.image.Image;

public class Exercise14_02 extends Application {
    @Override
    public void start(Stage primaryStage) {
        Image imageX = new Image("image/x.gif");
        Image imageO = new Image("image/o.gif");

        GridPane pane = new GridPane();
        pane.setAlignment(Pos.CENTER);
        pane.setHgap(5);
        pane.setVgap(5);

        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                int status = (int)(Math.random() * 3);
                if (status == 0) {
                    pane.add(new ImageView(imageX), j, i);     
                } else if (status == 1) {
                    pane.add(new ImageView(imageO), j, i);     
                }        
            }
        }

        // Create a scene and place it in the stage
        Scene scene = new Scene(pane);
        primaryStage.setTitle("Exercise14_02"); // Set the stage title
        primaryStage.setScene(scene); // Place the scene in the stage
        primaryStage.show(); // Display the stage
    }

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

Answer 1

尝试移动您的图像到‘资源’文件夹，创建一个，如果需要。

Image imagex = new Image(getClass().getResourceAsStream("/resources/your_image.jpg"));

或者检查是否已将资源文件夹包含在Project中。