What is printed when user clicks button $2,$ then button $1,$ then button $2$ again? public class ButtonApp extends Application $\{$

private boolean flag $=$ false;

@override

public void start$($Stage primaryStage$)\{$

Button button$1=$ new Button$("$Toggle Flag"$)$;

button$1.$set$0$nAction$($e $->\{$

flag $=!$flag;

System.out.println$("$Flag toggled: $"+$ flag$)$;

$\})$;

Button button$2=$ new Button$("$Print Message"$)$;

button$2.$set$0$nAction$($e $->\{$

if $($flag$)\{$

System.out.println$("$Flag is TRUE!"$)$;

$\}$ else $\{$

System.out.println$("$Flag is FALSE!"$)$;

$\}$

$\})$;

Button button$3=$ new Button$("$Exit$")$;

button$3.$set$0$nAction$($e $->\{$

System.out.println$("$Exiting$...")$;

primaryStage.close$()$;

$\})$;

VBox layout $=$ new VBox$(10)$;

layout.getChildren$().$addAll$($button$1,$ button$2,$ button$3)$;

Scene scene $=$ new Scene$($layout$,300,200)$;

primaryStage.setScene$($scene$)$;

primaryStage.setTitle$("$Button Listener Example"$)$;

primaryStage.show$()$;

$\}$

public static void main$($String$[]$ args$)\{$

launch$($args$)$;

$\}$

$\}$