Assigning an array to an ArrayList in Java

This is working

    int[] ar = {10, 20, 20, 10, 10, 30, 50, 10, 20};

    ArrayList<Integer> list = new ArrayList<>();

    for(int i:ar){
        list.add(new Integer(i));

    }
    System.out.println(list.toString());

    // prints : [10, 20, 20, 10, 10, 30, 50, 10, 20]