Will the following code compile?

Java

C#

abstract class A $\{$

public abstract int do$\_$stuff$1()$;

public abstract int do$\_$stuff$2()$;

$\}$

class B extends A $\{$

@Override

public int do$\_$stuff$1()\{$

return $4$;

$\}$

$\}$

class Main $\{$

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

B myB $=$ new B$()$;

$\}$

$\}$