ArrayList Quiz

The code below will add the value 5 to what index position?

• 5

• 1

• 0

Elements in an ArrayList can be accessed using the ________ method.

• add()

• remove()

• insert()

• get()

• set()

Which code snippet correctly adds the value 9 to index position 2 for the ArrayList?

• list.add(2, 9);

• list.add(9);

• list.set(2, 9);

Which method is used to replace an element at a specific index in an ArrayList?

• add()

• set()

• get()

What will happen if you try to access an index that is out of bounds in an ArrayList?

• It will return null.

• It will throw an IndexOutOfBoundsException.

• It will return the last element.

How do you remove an element from an ArrayList at a specific index?

• list.remove(index);

• list.delete(index);

• list.clear(index);

What does the set() method do?

• Adds a new element to the list

• Removes an element from the list

• Replaces an element at a specified index

• Sorts the list

The remove method also returns the value that is being __________ from the specified index.

• added

• removed

• replaced

• sorted

Which code snippet removes the index 0 value from a list and prints the removed value?

• System.out.println(cost.remove(0));

• System.out.println(cost.get(0));

• System.out.println(cost.set(0));

• System.out.println(cost.add(0));

Which code snippet correctly prints the size of the ArrayList named 'cost'?

• System.out.println(cost.size());

• System.out.println(cost.length());

• System.out.println(cost.count());

• System.out.println(cost.capacity());