How to convert a ArrayList into 2D array jn Java 7

I am trying to convert a Integer list in a 2D array in java 7. I first converted a String list to Integer and then Integer list to 2D array. Then I will do more operations as required.
What I tired is

List<String> list = Arrays.asList("1", "2", "3", "4");
    List<Integer> intList = new ArrayList<>();
    for (String s : list) {
        intList.add(Integer.valueOf(s));
    }
    //the problem is from here
    int[][] array = new int[intList.size()][];
    for (int i = 0; i < list.size(); i++) {
        for (int j = 0; j < list.size(); j++) {
            array[i][j] = intList.get(j + (list.size() * i));
        }
    }

I tried solving my issue looking at this Converting an ArrayList into a 2D Array and this Convert ArrayList into 2D array containing varying lengths of arrays but majority of the answers are given in java 8 which I don’t want! i know its a basic problem but i am stuck! Can someone help me to fix this? Thanks in advance!