Ok, mathless exam:
A bookstore wants to have a utility that helps them catalogue their books. They have diskettes with files containing information per book. Each book contains this as information: Book title, subtitle if it's available, a list of authors (most of the time one, but can be more), number of pages, price - with the option of seeing it without 21% tax, ISDN-number, category it belongs to and whether it's hard-cover or not.
Their utility has to be able to read in the diskette containing this information, along with listing the books alphabetically on main title, on first author (if the name's the same, on second author too. Name there the same, third author, etc), list from cheapest to most expensive, from most expensive to cheapest, per category and just all books in total.
They also should be able to change the information 'bout a book if they see it needed, or add a book to the file.
Create this utility. It's not required to have a fancy interface. Text-based's just fine.
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