In C++ create a database of books that are stored using a vector. Keep track of the author, title, and publication date of each book. Your program should have a main menu that allows the user to select from the following: (1) Add a books author, title, and date; (2) Print an alphabetical list of the books sorted by author; and (3) Quit.

Must use a class to hold the data for each book. This class must hold three string fields: one to hold the authors name, one for the publication date, and another to hold the books title. Store the entire database of books in a vector in which each vector element is a book class object.

To sort the data, use the generic sort function from the library. Note that this requires you to define the < operator to compare two objects of type Book so that the author field from the two books are compared. A sample of the input/output behavior might look as follows. Your I/O need not look identical, this is just to give an idea of the functionality. Comment the code and your functions.

Select from the following choices:

1. Add new book

2. Print listing sorted by author

3. Quit

1

Enter title:

More Than Human

Enter author:

Sturgeon, Theodore

Enter date:

1953

Select from the following choices:

1. Add new book

2. Print listing sorted by author

3. Quit

1

Enter title:

Problem Solver

Enter author:

Savit, Walt

Enter date:

2015

Select from the following choices:

1. Add new book

2. Print listing sorted by author

3. Quit

2

The books entered so far, sorted alphabetically by author are:

Savit, Walt. Problem Solver. 2015.

Sturgeon, Theodore. More Than Human. 1953.