用JavaFX怎么实现这段代码：Group root = new Group(); Scene scene = new Scene(root, 400, 400, true, SceneAntialiasing.BALANCED); Box box = new Box(200, 200, 200); PhongMaterial material = new PhongMaterial(); material.setDiffuseColor(Color.BLUE); box.setMaterial(material); root.getChildren().add(box); PerspectiveCamera camera = new PerspectiveCamera(); camera.setTranslateX(-200); camera.setTranslateY(-200); camera.setTranslateZ(-500); scene.setCamera(camera); Stage stage = new Stage(); stage.setScene(scene); stage.show();

可以使用以下代码实现：

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.Scene;
import javafx.scene.SceneAntialiasing;
import javafx.scene.paint.Color;
import javafx.scene.shape.Box;
import javafx.scene.shape.Shape3D;
import javafx.scene.shape.Sphere;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Translate;
import javafx.stage.Stage;
import javafx.scene.paint.PhongMaterial;

public class JavaFXExample extends Application {

@Override
public void start(Stage primaryStage) throws Exception {
Group root = new Group();
Scene scene = new Scene(root, 400, 400, true, SceneAntialiasing.BALANCED);

Box box = new Box(200, 200, 200);
PhongMaterial material = new PhongMaterial();
material.setDiffuseColor(Color.BLUE);
box.setMaterial(material);

root.getChildren().add(box);

PerspectiveCamera camera = new PerspectiveCamera();
camera.setTranslateX(-200);
camera.setTranslateY(-200);
camera.setTranslateZ(-500);

scene.setCamera(camera);

primaryStage.setScene(scene);
primaryStage.show();
}

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