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:
[8,2,9,7,-1,55]
The output produced by the method when passed the ArrayList [8,2,9,7,-1,55] is:
[0, 8, 2, 0, 7, 0, -1, 55]
Explanation:
- The loop starts at index 1 and increments by 2 each iteration, so it will only consider the odd indices of the ArrayList: 2, 7, 55.
- For each odd index, it checks if the previous element (even index) is greater than or equal to the current element. If it is, it removes the current element and adds 0 at index 0.
- In this case, 8 is greater than 2, so it removes 2 and adds 0 at index 0. This changes the ArrayList to [0,8,9,7,-1,55].
- Similarly, 7 is greater than -1, so it removes -1 and adds 0 at index 0. This changes the ArrayList to [0,0,8,9,7,55].
- Finally, it prints the modified ArrayList: [0, 0, 8, 9, 7, 55].