Sample01JavaFXApp

JavaFX

public class Sample01JavaFXApp extends Application {
    public static void main(String[] args) {
        Application.launch(args);
    } 

    @Override
    public void start(Stage primaryStage) throws Exception {
        BorderPane root = new BorderPane();
        Button button = new Button("Click Me");

        Alert alert = new Alert(Alert.AlertType.INFORMATION, "Button Clicked", ButtonType.OK);    
        alert.setHeaderText("Sample 01 JavaFX");

        button.setOnAction(e -> alert.show());

        root.setCenter(button);
        primaryStage.setScene(new Scene(root, 400, 200));
        primaryStage.setTitle("Sample 01 JavaFX");
        primaryStage.show();
    }
}