ArrayList Methods

AP Computer Science A· difficulty 3/5

ArrayList<Integer> list = new ArrayList<>();
list.add(10);
list.add(20);
list.add(30);
list.add(40);
list.remove(1);
list.remove(1);
System.out.println(list);

What is printed?

A
$[10, 40]$
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B
$[10, 20]$
C
$[20, 30]$
D
$[10, 30, 40]$

Explanation

First remove(1) removes 20, list becomes [10, 30, 40]. Second remove(1) removes 30, leaving [10, 40].

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