What is the output of the following code?

import javafx.beans.property.IntegerProperty;

import javafx.beans.property.SimpleIntegerProperty;

public class Test $\{$

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

IntegerProperty d$1=$ new SimpleIntegerProperty$(1)$;

IntegerProperty d$2=$ new SimpleIntegerProperty$(2)$;

d$1.$bindBidirectional$($d$2)$;

System.out.print$("$d$1$ is $"+$ d$1.$getValue$()$

$+"$ and d$2$ is $"+$ d$2.$getValue$())$;

d$1.$setValue$(3)$;

System.out.println$(",$ d$1$ is $"+$ d$1.$getValue$()$

$+"$ and d$2$ is $"+$ d$2.$getValue$())$;

$\}$

$\}$