Chapter 11, Problem 8PP

Define a class called List that can hold a list of values of type double. Model your class definition after the class TemperatureList given in Display11.10, but your class List will make no reference to temperatures when it outputs values. The values may represent any sort of data items as long as they are of type double. Include the additional features specified in Self- Test Exercises 21 and 22. Change the member function names so that they do not refer to temperature.

Add a member function called getLast that takes no arguments and returns the last item on the list. The member function getLast does not change the list, and it should not be called if the list is empty. Add another member function called deleteLast that deletes the last element on the list. The member function deleteLast is a void function. Note that when the last element is deleted, the member variable size must be adjusted. If deleteLast is called with an empty list as the calling object, the function call has no effect. Design a program to thoroughly test your definition for the class List.