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ArrayListMystery

Language/Type: Java ArrayList Collections mystery
Author: Marty Stepp (on 2010/12/28)

Consider the following method:

public static void mystery(ArrayList<Integer> list) {
    for (int i = 1; i < list.size(); i += 2) {
        if (list.get(i - 1) >= list.get(i)) {
            list.remove(i);
            list.add(0, 0);
        }
    }
    System.out.println(list);
}

Write the output produced by the method when passed each of the following ArrayLists:

[10, 20, 10, 5]
[8, 2, 9, 7, -1, 55]
[0, 16, 9, 1, 64, 25, 25, 14, 0]

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