Why does the below program print [B, A]?

[Clemonte Johnstone]

Why does the below program print [B, A]? Shouldn't index 0 be overwritten?

        List<String> list = new ArrayList<>();
        list.add(0, "A");
        list.add(0, "B");

        System.out.println(list);

[Dave Tolls]

Try the API docs for the add method.

"Shifts the element currently at that position (if any) and any subsequent elements to the right"

[Mike Simmons]

You can also compare this to the set method.