// Multiple stages can be added beside the primaryStage
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Button;

public class MultipleStageDemo extends Application {

    @Override // Override the start method in the Application class
    public void start(Stage primaryStage) {
// Create a scene and place a button in the scene
        Scene scene = new Scene(new Button("OK"), 200, 250);
        primaryStage.setTitle("MyJavaFX"); // Set the stage title
        primaryStage.setScene(scene); // Place the scene in the stage
        primaryStage.show(); // Display the stage
        Stage stage = new Stage(); // Create a new stage
        stage.setTitle("Second Stage"); // Set the stage title
// Set a scene with a button in the stage
        stage.setScene(new Scene(new Button("New Stage"), 100, 100));
        stage.show(); // Display the stage
    }

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