Application的三种启动方式和生命周期

第二种

import javafx.application.Application;
import javafx.stage.Stage;
public class Main extends Application {
    public static void main(String[] args) {
        Application.launch(Main.class, args);
    }
    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("Hello world");
        primaryStage.show();
    }
}

第三种

import javafx.application.Application;
import javafx.stage.Stage;

public class Launcher extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {
        System.out.println("分离Application的方式启动");
    }
}

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