Please see the code below and fill in the gaps so that the given output is correctly generated.

public class Worksheet$4\_1\{$

counter $=0$;

int timer;

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

Worksheet$4\_1$ object$1=$ new Worksheet$4\_1()$;

object$1.$ setCoutner$()$;

object$1.$setTimer$(10)$;

System.out.println$("$Counter $="+,+"\backslash$tTimer $=+$

Worksheet$4\_1$ object$2=$ new Worksheet$4\_1()$;

object$2.$setCoutner$()$;

object$2.$ setTimer$(20)$;

System.out.println$("$Counter $=+$quad$+$ "tTimer $=+$

object$2.$ resetCounter$()$;

System.out.println$($

$\}$

public Worksheet$4\_1()\{$

this. timer $=0$;

$\}$

public void setCoutner $()\{$

this.counter$++$;

$\}$

public void resetCounter$()\{$

this. counter $=0$;

$\}$

public void setTimer$($int second$)\{$

this.timer $=$ second;

$\}$

$\}$

Output:

Counter $=1$ Timer $=10$

Counter $=2$ Timer $=20$

$0$