public class Main extends Application { @Override public void start(Stage primaryStage) { StackPane pane = new StackPane (); Button bt1 = new Button("Java"); Button bt2 = new Button("Java"); Button...

Assume all required classes are imported.
Analyze the following code snippet. what will be the output.

Extracted text: public class Main extends Application { @Override public void start(Stage primaryStage) { StackPane pane = new StackPane (); Button bt1 = new Button("Java"); Button bt2 = new Button("Java"); Button bt3 = new Button("Java"); Button bt4 = new Button("Java"); pane.getChildren().addAl1(bt1, bt2, bt3, bt4); Scene scene = new Scene(pane, 200, 250); primarystage.setTitle("Test"); primarystage.setScene(scene); primarystage.show(); } public static void main(String[] args) { Launch (args); } }