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Question: (Package Inheritance Hierarchy) Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create an inheritance hierarchy to represent various types of packages. Use class Package as the base class of the hierarchy, then include classes Two Day Package and Over night Package that derive from Package. Base class Package should include data members representing the name, address, city, state and ZIP code for both the sender and the recipient of the package, in addition to data members that store the weight (in ounces) and cost per ounce to ship the package. Package's constructor should initialize these data members. Ensure that the weight and cost per ounce contain positive values. Package should provide a public member function calculate Cost that returns a double indicating the cost associated with shipping the package. Package's calculate Cost function should determine the cost by multiplying the weight by the cost per ounce. Derived class Two Day Package should inherit the functionality of base class Package, but also include a data member that represents a flat fee that the shipping company charges for two-day-delivery service. Two Day Package's constructor should receive a value to initialize this data member. Two Day Package should redefine member function calculate Cost so that it computes the shipping cost by adding the flat fee to the weight-based cost calculated by base class Package's calculate Cost function. Class Over night Package should inherit directly from class Package and contain an additional data member representing an additional fee per ounce charged for overnight-delivery service. Over night Package should redefine member function calculate Cost so that it adds the additional fee per ounce to the standard cost per ounce before calculating the shipping cost. Write a test program that creates objects of each type of Package and tests member function calculate Cost.
What is the best way to think "logically" when beginning programming, also, what are some great outside resources to learn programming on your own.
(Invoice Class) Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store.
Suppose that you are writing a stored procedure to record a customer's purchase. Assume that the customer's data are new. How will you declare the boundaries of the transaction? What isolation level will you use?
After a shopper completes an order, a procedure is called to update the following columns in the Basket table: orderplaced, subtotal, shipping, tax and total.
What are the factors to be considered while designing an efficient algorithm?
Now, without using the View button, create the corresponding directed graph using the GraphD workshop applet. When you're done, push the View button to see if the graph corresponds to your adjacency matrix.
Evaluate one of the websites listed below and create a report based on heuristic evaluation, consistency, and cognitive walkthrough.
Which gives the better performance, binary search on a sorted list, or sequential search on a list ordered by frequency where the frequence conforms to a Zipf distribution? Characterize the difference in running times.
what are application of artificial intelligence in different fields and also explain it? ltbrgtwhat are application of
Give the relational algebra expression for the following English queries. 1. Get the supplier# who supply all the blue parts
Design and implement a set of useful helper functions for the Date class with functions such as next_workday() (assume that any day that is not a Saturday or a Sunday is a workday) and week_of_year() (assume that week 1 is the week with January 1 ..
The server needs some way of knowing which two sockets belong to the same client. One way to do this is to have the client first create a listening socket using an ephemeral port (i.e., binding to port 0).
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