AP Computer Science A Quiz
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DATA COLLECTIONS
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PASSAGE
public class Swapper
{
// Precondition: 0 <= i < list.size(), 0 <= j < list.size()
public static void swap(ArrayList<Integer> list, int i, int j)
{
Integer temp = list.get(i);
list.set(i, list.get(j));
list.set(j, temp);
}
}
An
ArrayList named data contains [5, 10, 15, 20]. What are the contents of data after the call Swapper.swap(data, 1, 3)? YOUR PROGRESS
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