We will use the dynamic array by sending messages to it like get, subList, first, last, etc.

All of these public methods only apply to the accessible zone.

• get(0) is 10
• get(1) is 20
• get(2) is 30
• get(3) is 40
• get(4) is an EXCEPTION -- out of bounds

Access is from 0 to (size-1)

Here is a case where we have no elements (size = 0).

We could not do any access methods like get, first, last, etc.

We are about to remove element 20.

We need to do some shifting to remove the removed slot in the accessible zone.