Looks like you set default thread to sleep. So it's normal. How do you call the warte(int ms) ?
Type: Posts; User: trod
Re: TimeUnit.SECONDS.sleep(x) stops simulation
Looks like you set default thread to sleep. So it's normal. How do you call the warte(int ms) ?
Re: NullPointerException in a "for loop"
At first glance private ArrayList<Lebewesen> lebewesen of class Lebewesen is not being initialized. That's why you getting NPE.