What is the output of following Java program?

public class $T\{$

int $t=20$;

public T$()\{$

$t=40$;

$\}$

$\}$

public class Test $\{$

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

$Tt1=$ new $T()$;

System.out.print $ln(t1.t)$;

$\}$

$\}$

Your answer:

$20$

$40$

Error