JavaFX (1) Hello World

1.类要继承于javafx.application.Application
2.实现start()方法,这是应用程序的入口

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

public class App extends Application{
    public void start(Stage primaryStage){

        primaryStage.setTitle("hello");//设置标题
        primaryStage.show();

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

其中main在程序中非必要
程序运行结果:

JavaFX (1) Hello World_第1张图片

添加文本:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class main extends Application{
    public void start(Stage primaryStage){

        Text t = new Text("Hello World");
        StackPane stackPane = new StackPane();
        stackPane.getChildren().add(t);
        Scene scene = new Scene(stackPane,400,300);

        primaryStage.setScene(scene);
        primaryStage.setTitle("hello");
        primaryStage.show();
    }
    public static  void main(String[] args){
        launch(args);
    }
}

运行结果:

JavaFX (1) Hello World_第2张图片

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