Chapter 9, Problem 12PC

Modified Bin Manager Class

Modify the BinManager class you wrote for Programming Challenge 18 in Chapter 8 to overload its getQuantity, addParts, and removeParts functions as shown here:

  bool addParts (string itemDescription, int q);

  bool removeParts (string itemDescription, int q)

  int getQuantity(string itemDescription);

These new functions allow parts to be added, parts to be removed, and the quantity in stock for a particular item to be retrieved by using an item description, rather than a bin number, as an argument. In addition to writing the three overloaded functions, you will need to create a private BinManager class function that uses the item description as a search key to locate the index of the desired bin.

Test the new class functions with the same client program you wrote for Programming Challenge 15 in Chapter 8, modifying it to call the new functions. Be sure to use some descriptions that match bins in the array and some that do not.

As you did in the previous Bin Manager program, if an add or remove operation is successfully carried out, make the function return true. If it cannot be done—for example, because the string passed to it does not match any item description in the array—make the function return false. If the getQuantity function cannot locate any item whose description matches the one passed to it, make it return −1.