What is the output of the following code?

Java C#

class Stuff $\{$

public int number$=1$;

$\}$

class Main $\{$

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

Stuff myStuff $=$ new Stuff$()$;

myStuff.number$+=3$;

System.out.println$("$myStuff$.$number:"$+$myStuff.number$)$;

myStuff $=$ new Stuff$()$;

System.out.println$("$myStuff$.$number:"$+$myStuff.number$)$;

$\}$

$\}$