import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx. scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import java.util.Random;

public class FortuneTeller extends Application
{
    Text fortune = new Text("");
    String[] fortunes = {"Test javaFx"};
    
    @Override
    public void start(Stage stage) throws Exception
    {
        VBox box = new VBox();
        nox.setPadding(new Insets(20));
        box.setSpacing(20);
        box.setAlignment(Pos.CENTER);
        
        Text title = new Text("Heloo Fortune Teller");
        title.setFont(Font.font("SanSerif", 36));
        box.getChildern().add(title);
        
        Button button = new Button("Klik JavaFx");
        box.getChildern().add(button);
        
        button.setOnAction(this::buttonClick);
        
        Scene scene = new Scene(box, 500, 250);
        stage.setTitle("Hello JavaFx");
        stage.setScene(scene);
        stage.show();   
    }
    
    private void buttonClick(ActionEvent event)
    {
        Random rand = new Random();
        fortune.setText(fortunes[rand.nextInt(fortunes.length)]);
    }
}