go looking for some free lance site , this is not the right place . Do you expect someone to provide you the solutions ??? how dumb !!!
stillsweet786 wrote: > > 1. > A company wants to transmit data over the telephone, but is concerned > that its phones could be tapped. All of the data are transmitted as > four-digit integers. The company has asked you to write a program > that encrypts the data so that it can be transmitted more securely. > Your program should read a four-digit integer and encrypt it as > follows: Replace each digit by (the sum of that digit plus 7) modulus > 10. Then, swap the first digit with the third, swap the second digit > with the fourth and print the encrypted integer. > 2. > A parking garage charges a £2.00 minimum fee to park for up to three > hours. The garage charges an additional £0.50 per hour for each hour > or part thereof in excess of three hours. The maximum charge for any > given 24-hour period is £10.00. Assume that no car parks for longer > than 24 hours at a time. Write a program that calculates and prints > the parking charges for each of three customers who parked their cars > in this garage yesterday. You should enter the number of hours parked > for each customer. Your program should print the results in a neat > tabular format and should calculate and print the total of > yesterday's receipts. The program should use the function > calculateCharges to determine the charge for each customer. Your > output should appear in the following format: > Enter the hours parked for three cars: 1.5 4.0 24.0 > Car Hours Charge > 1 1.5 2.00 > 2 4.0 2.50 > 3 24.0 10.00 > TOTAL 29.5 14.50 > Hints: > . Use a for loop to prompt the user for the number of hours parked > for each of the three customers. > . Declare variables to store the total number of hours and the total > charges for each customer. > . The variables for all charges and numbers of hours should be of > type double. > . Function calculateCharges should use a nested if...else statement to > determine the customer charge. > > 3. > 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 Package as the base class of the hierarchy, > then include classes TwoDayPackage and OvernightPackage 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 calculateCost that > returns a double indicating the cost associated with shipping the > package. Package's calculateCost function should determine the cost > by multiplying the weight by the cost per ounce. Derived class > TwoDayPackage 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. > TwoDayPackage' s constructor should receive a value to initialize this > data member. TwoDayPackage should redefine member function > calculateCost so that it computes the shipping cost by adding the > flat fee to the weight-based cost calculated by base class Package's > calculateCost function. Class OvernightPackage should inherit > directly from class Package and contain an additional data member > representing an additional fee per ounce charged for overnight- > delivery service. OvernightPackage should redefine member function > calculateCost 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 calculateCost. > 4. > Suppose we wish to process survey results that are stored in a file. > This exercise requires two separate programs. First, create a program > that prompts the user for survey responses and outputs each response > to a file. Use an ofstream to create a file called "numbers.txt" . > Then create a program to read the survey responses > from "numbers.txt" . The responses should be read from the file by > using an ifstream. Input one integer at a time from the file. The > program should continue to read responses until it reaches the end of > file. The results should be output to the text file "output.txt" . > [Hint: The second program will use both ifstream and ofstream > objects, the first for reading responses from numbers.txt and the > second for writing frequency counts to output.txt.] > 5. > Many businesses' Web sites contain shopping-cart applications, which > allow customers to buy items conveniently on the Web. The sites > record what the consumer wants to purchase and provide an easy, > intuitive way to shop online. They do so by using an electronic > shopping cart, just as people would use physical shopping carts in > retail stores. As users add items to their shopping carts, the sites > update the carts' contents. When users "check out," they pay for the > items in their shopping carts. You must implement a shopping cart > which allows users to purchase digital satellite receivers from a > fictitious satellite store that sells four digital satellite > receivers. Your application may uses four scripts, two server-side > files and cookies > > [Non-text portions of this message have been removed]
