Java: How ArrayList manages memory

Question

In my Data Structures class we have studies the Java ArrayList class, and how it grows the underlying array when a user adds more elements. That is understood. However, I ca

Answer 1

There is not much gain by resizing the ArrayList internal array, even you are using ArrayList to hold a large object.

List list = new ArrayList();

list will only hold reference to LargeObject instance, and not holding LargeObject instance itself.

Reference doesn't consume much space. (Think it as pointer in C)