IST 256
Assignment 4
THE USED BOOK SELLER
Due December 8, 5:00pm in the iLMS
( Hard copy handed in Exam on December 9.)
( Accepted for late credit until December12.)
Write a program that reads and manipulates book information for a used book seller. The
information must be manipulated as records and include the name of the book, author of
the book, seller information (including company name, URL and approval rating), price,
and book quality. A data file is provided for you.
A sample line:
Information Science Today, Daffy Duck, Disney Books, disney.com, .95, 20.00, Very Good
The user interface for the Used Book Seller will allow the user to query the book
information for:
1. Given the author of a book, print out all the books by that author, displaying the
book information.
2. Given a partial value of the book title, print out the book information on all the
books that match, (wild card search). When the books are displayed, they must be
sorted into increasing order by price.
For each type of query in the user interface, be sure to give directions on how to do the
searches. In your user interface, you can have a button that the user clicks first to read
the book records from the file OR you may read the file from a Form_Load procedure.
Note that you do NOT allow the user to type in the name of the file.
The program will keep the book information from the file in an array of book records.
There will be one record for each book. This record must be hierarchical in that there
should be a nested record for the book seller company name and information (name, URL
and rating).
Each of the buttons will have a search through the array. The first button searches for
author name and the second button has a wild card search for part of the book title. You
should write a procedure that takes a book information record and assigns a (ByRef)
string parameter to format the information in the book record. Each button can call this
procedure to get the formatted string to add to its label output.
A suggestion for the second button is that when you search the books, copy each book
record that matches the query to a second array of book records and sort that array,
producing the display from the sorted books.
