Thread: "Cannot be applied to" error

Code:

 C c3 = new C(arraylist2, l2);
                    VirtualWorld.I[j5].remove(az[k5]);
                    VirtualWorld.I[j5].put(az[k5], c3);
                    i++;
                } else
                {
                    ArrayList<Integer> arraylist = new ArrayList<Integer>();
                    arraylist.add(Integer.valueOf(k4));
                    C c2 = new C(arraylist, l2);
                    VirtualWorld.I[j5].put(az[k5], c2);
                    i++;
                }
            }