Java ArrayIndexOutOfBound

Question

I am currently working on a student project and everytime I get this error: ArrayIndexOutOfBoundsException: 7. Can someone see where it occurs and how I can fix

Answer 1

if(c >= Playerlist.length)
        {
            c = 0;
        }
        else
        {
            c++;

            //ARRAY_INDEX_OUT_OF_BOUNDS ERROR !!!!!!!!!!!!!!!!!!!!
            while(wuerfelsummen[c] == null)

You are first checking if c is at most the last index of the array, and afterwards increment it by 1, possibly pushing it over that limit.