If a new element is added to an ArrayList whose internal array if already full,
A) the add method throws an exception
B) A new,bigger internal array is created,the elements are moved to the new array,the old internal array is deleted,and then the new element is added
C) the new element is not added,and -1 is returned
D) the new element is not added,and null is returned

Question

Quizplus · Accepted Answer

When an ArrayList reaches its capacity, it will create a new, larger internal array, typically with twice the capacity of the original array, and move all elements to the new array. Then, the new element is added to the end of the list in the new array. This ensures that there is always room in the ArrayList for new elements without wasting memory or causing the add method to throw an exception.

If a New Element Is Added to an ArrayList Whose