JavaFx：7、scene类，和两个小知识

package fx.com;

import javafx.application.Application;
import javafx.application.HostServices;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;

import java.net.URL;


public class Main extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
//        HostServices hostServices = getHostServices();
//        hostServices.showDocument("www.baidu.com");

        URL url = getClass().getClassLoader().getResource("fx/icon/icon.jpg");
        String s = url.toExternalForm();

        Button button = new Button("按钮");
        button.setPrefWidth(300);
        Group group = new Group();
        group.getChildren().add(button);

        Scene scene = new Scene(group);
        //scene.setCursor(Cursor.HAND);
        scene.setCursor(Cursor.cursor(s));

        primaryStage.setScene(scene);

        primaryStage.setTitle("javaFx");
        primaryStage.setHeight(800);
        primaryStage.setWidth(800);
        primaryStage.show();
    }
}