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AP Computer Science A· difficulty 3/5

ArrayList<Integer> list = new ArrayList<>();
list.add(5);
list.add(8);
list.add(3);
list.add(8);
int idx = -1;
for (int i = 0; i < list.size(); i++) {
    if (list.get(i) == 8) {
        idx = i;
        break;
    }
}
System.out.println(idx);

What is printed?

A
$3$
B
$1$
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C
$0$
D
$-1$

Explanation

The first occurrence of 8 is at index 1, and break exits before finding the second one.

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