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BJP4 Self-Check 10.18: ArrayListMystery4

Language/Type: Java ArrayList Collections mystery
Author: Eric Spishak (on 2016/09/08)

Consider the following method:

public static void mystery4(ArrayList<Integer> list) {
    for (int i = 0; i < list.size(); i++) {
        int element = list.get(i);
        list.add(0, element + 1);

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

[10, 20, 30]
[8, 2, 9, 7, 4]
[-1, 3, 28, 17, 9, 33]

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