can you write this in scala? public class ObserverMain $\{$

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

ConcreteSubject subject$1=$ new ConcreteSubject$()$;

ConcreteSubject subject$2=$ new ConcreteSubject$()$;

TerminalLogger logger $=$ new TerminalLogger$()$;

subject$1.$attach$($logger$)$;

subject$2.$attach$($logger$)$;

subject$1.$setState$("$State $1")$;

subject$2.$setState$("$State $2")$;

$\}$

$\}$