Java: split a List into two sub-Lists?

Question

What\'s the simplest, most standard, and/or most efficient way to split a List into two sub-Lists in Java? It\'s OK to mutate the original List, so no copying should be nece

Answer 1

//Here is my list
    ArrayList items=new ArrayList();
    Integer startIndex = 0;
            int j = 0;
            for (; j < items.size() - 1; j++) {//always start with next index not again 0
                for (int i = 0; i < 4; i++) { // divide into equal part with 4 item
                    startIndex = startIndex + 1;
                    j = startIndex;
                }
            }