Code question..

[FinalBlast]

At a bookstore the book information is stored in a file.
For each book there's author, headline, barcode, price, numbers in stock.
Create a program which defines neccecary type of data for 1 book and
lets you choose from a menu:
-create an empty file
-change price according to set barcode.
-Show the price of all books in stock.
(price by quantity)

Is anyone who has the time and patience able to do this?
(mainly done in dev-c++ program)

[[Unknown]]

This sounds like a homework assignment. It would be best for you if you did it - that's why the teacher (or book, or online course, or w/e) assigned it to you.

First thing: try creating a program that has a menu, and is able to create an empty file. Nothing else.

-[Unknown]