Linked Structures - Programming Projects 4.1, 4.2
(4.1) Complete the implementation of the LinkedStack class by providing the definitions for the size, isEmpty, and toString methods.
Answer: Implementation of LinkedStack class is in dataStructure package.
(4.2) Modify the postfix program from chapter 3 so that it uses the LinkedStack class instead of the ArrayStack class.
Answer: Necessary classes can be found in this repository.