Question 6.4 still remains unanswered about cplusplus-prog-exercises HOT 3 CLOSED

Update 1:

Add the initial template of the answer... Currently, the code is exactly the same as the answer to question 6.3.

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Update 2:

• Defined a changePrice function to change the price of a book as and when required... Even though the question mentions it to be implemented as a private member function, I have implemented it as a
  public member function since private functions can't be accessed by the objects of the class...

• Stock value of each book is automatically updated after each successful transaction.

• Added a displayInventory function to display the details of the books present in the inventory.

• Redesigned the main function of the Answer to accomodate the changes happened in the code.

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Update 3:

• Defined a function to show the number of successful and unsuccessful transactions by using static data members.

The answer to this question is complete and hence, this issue is now closed.

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