Why are only a few changes necessary to reuse the code in Listing 3-2? Howwould you implement the changes using the “find and replace” functionality of a text editoror IDE?

What will be an ideal response?

Because both ArrayBag and LinkedBag are derived from BagInterface, they each implement the same methods. Moreover, BagInterfaceis a template that represents the data type of the entries in the bag generically with the identifier ItemType. The program in Listing 3-2 was written in this context. Thus, by replacing ArrayBagwith LinkedBagin Listing 3-2, you will get a program to test the core methods of LinkedBag.