The document outlines the implementation of a C++ inheritance hierarchy for package delivery services, defining a base class 'package' and derived classes 'twodaypackage' and 'overnightpackage'. It details the data members and methods for calculating shipping costs based on different conditions, including weight, cost per ounce, and additional fees for delivery services. The document includes instructions for a test program that creates package objects, calculates costs, and prints mailing labels and overall package statistics.

1. C++ 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 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 caculateCost 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 caculateCost 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. In your main method, ask the user what type of package they want, then
ask the user for the appropriate information for that package. Add that package to your vector of
Packages. Once the user is done entering packages, then loop through your vector and print out
mailing labels for each package (address information for sender and recipient). Also, print out
each packages cost. After your loop ends, print out the total cost for all the packages, and the
average package cost. Also, print out how many of each type of package was entered.
Solution
#include
#include
#include
using namespace std;
class Package

2. {
private:
string sender_name;
string sender_address;
string sender_city;
string sender_state;
string sender_ZIP;
string recipient_name;
string recipient_address;
string recipient_city;
string recipient_state;
string recipient_ZIP;
double weight;
double costperounce;
public:
Package(string sender_n, string sender_addr, string sender_c,
string sender_s, string sender_Z, string recipient_n, string recipient_addr,
string recipient_c,string recipient_s, string recipient_Z, double wei,
double cost);
void setsender_name(string sender_n);
string getsender_name();
void setsender_address(string sender_addr);
string getsender_address();
void setsender_city(string sender_c);
string getSendCity();
void setsender_state(string sender_s);
string getsender_state();
void setsender_ZIP(string sender_Z);
string getsender_ZIP();
void setrecipient_name(string recipient_n);
string getrecipient_name();
void setrecipient_address(string recipient_addr);

3. string getrecipient_address();
void setrecipient_city(string recipient_c);
string getrecipient_city();
void setrecipient_state(string recipient_s);
string getrecipient_state();
void setrecipient_ZIP(string recipient_Z);
string getrecipient_ZIP();
void setweight(double w);
double getweight();
void setcostperounce(double cost);
double getcostperounce();
double calculateCost();
};
Package::Package(string sender_n, string sender_addr, string sender_c, string
sender_s, string sender_Z, string recipient_n, string recipient_addr,string
recipient_c,string recipient_s, string recipient_Z, double wei, double cost)
{
sender_name = sender_n;
sender_address = sender_addr;
sender_city = sender_c;
sender_state = sender_s;
sender_ZIP = sender_Z;
recipient_name = recipient_n;
recipient_address = recipient_addr;
recipient_city = recipient_c;
recipient_state = recipient_s;
recipient_ZIP = recipient_Z;
if(wei > 0.0 && cost > 0.0)
{
weight = wei;
costperounce = cost;
}
else
{

4. weight = 0.0;
costperounce = 0.0;
}
}
void Package::setsender_name(string sender_n)
{
sender_name = sender_n;
}
string Package::getsender_name()
{
return sender_name;
}
void Package::setsender_address(string sender_addr)
{
sender_address = sender_addr;
}
string Package::getsender_address()
{
return sender_address;
}
void Package::setsender_city(string sender_c)
{
sender_city = sender_c;
}
string Package::getSendCity()
{
return sender_city;
}
void Package::setsender_state(string sender_s)
{
sender_state = sender_s;
}
string Package::getsender_state()
{

5. return sender_state;
}
void Package::setsender_ZIP(string sender_Z)
{
sender_ZIP = sender_Z;
}
string Package::getsender_ZIP()
{
return sender_ZIP;
}
void Package::setrecipient_name(string recipient_n)
{
recipient_name = recipient_n;
}
string Package::getrecipient_name()
{
return recipient_name;
}
void Package::setrecipient_address(string recipient_addr)
{
recipient_address = recipient_addr;
}
string Package::getrecipient_address()
{
return recipient_address;
}
void Package::setrecipient_city(string recipient_c)
{
recipient_city = recipient_c;
}
string Package::getrecipient_city()
{
return recipient_city;
}
void Package::setrecipient_state(string recipient_s)

6. {
recipient_state = recipient_s;
}
string Package::getrecipient_state()
{
return recipient_state;
}
void Package::setrecipient_ZIP(string recipient_Z)
{
recipient_ZIP = recipient_Z;
}
string Package::getrecipient_ZIP()
{
return recipient_ZIP;
}
void Package::setweight(double w)
{
weight = (w < 0.0 ) ? 0.0 : w;
}
double Package::getweight()
{
return weight;
}
void Package::setcostperounce(double cost)
{
costperounce = ( cost < 0.0) ? 0.0 : cost;
}
double Package::getcostperounce()
{
return costperounce;
}
double Package::calculateCost()
{
double result;
result = weight * costperounce;

7. return result;
}
class TwoDayPackage : public Package
{
private:
double two_day_delivery_fee;
public:
TwoDayPackage(string sender_n, string sender_addr, string
sender_c, string sender_s, string sender_Z, string recipient_n,
string recipient_addr,string recipient_c,string recipient_s,
string recipient_Z,double wei, double cost, double delivery_fee);
double gettwo_day_delivery_fee();
void settwo_day_delivery_fee(double delivery_fee);
double calculateCost();
};
TwoDayPackage::TwoDayPackage(string sender_n, string sender_addr,
string sender_c, string sender_s, string sender_Z, string recipient_n,
string recipient_addr,string recipient_c,string recipient_s,
string recipient_Z, double wei, double cost, double delivery_fee)
:Package(sender_n, sender_addr, sender_c, sender_s, sender_Z, recipient_n,
recipient_addr, recipient_c, recipient_s, recipient_Z,wei,cost)
{
settwo_day_delivery_fee(delivery_fee);
}
double TwoDayPackage::gettwo_day_delivery_fee()
{
return two_day_delivery_fee;
}
void TwoDayPackage::settwo_day_delivery_fee(double delivery_fee)
{
two_day_delivery_fee = delivery_fee;
}
double TwoDayPackage::calculateCost()

8. {
double result;
result = Package::calculateCost() + two_day_delivery_fee;
return result;
}
class OvernightPackage : public Package
{
private:
double overnight_delivery_fee;
public:
OvernightPackage(string sender_n, string sender_addr, string sender_c,
string sender_s, string sender_Z, string recipient_n, string recipient_addr,
string recipient_c,string recipient_s, string recipient_Z, double wei,
double cost, double delivery_fee);
double calculateCost();
double getovernight_delivery_fee();
void setovernight_delivery_fee(double delivery_fee);
};
OvernightPackage::OvernightPackage(string sender_n, string sender_addr,
string sender_c, string sender_s, string sender_Z, string recipient_n,
string recipient_addr,string recipient_c,string recipient_s,
string recipient_Z, double wei, double cost, double delivery_fee)
:Package(sender_n, sender_addr, sender_c, sender_s, sender_Z, recipient_n,
recipient_addr, recipient_c, recipient_s, recipient_Z,wei,cost)
{
setovernight_delivery_fee(delivery_fee);
}
double OvernightPackage::getovernight_delivery_fee()
{
return overnight_delivery_fee;
}
void OvernightPackage::setovernight_delivery_fee(double delivery_fee)
{

9. overnight_delivery_fee = delivery_fee;
}
double OvernightPackage::calculateCost()
{
double result;
result = (getcostperounce() + overnight_delivery_fee) * getweight();
return result;
}
int main(int argc, char *argv[])
{
OvernightPackage item1("Tom Brown", "123 Main Street", "Phoenix",
"Arizona", "89754", "John", "123 bent street", "Hartford", "Connecticut",
"87540", 12.00, 1.50, 1.10);
TwoDayPackage item2("Monique Smith", "987 1st Street", "Sacramento",
"California", "87654", "Paul", "833 palm Street", "Miami", "Florida",
"98763", 18.00, 1.05, 8.00);
cout << fixed << setprecision(2);
cout <<
"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ";
cout << "Overnight Delivery ";
cout << "Sender " << item1.getsender_name()<< " ";
cout << " " << item1.getsender_address() << " ";
cout << " " << item1.getSendCity() << " " <<
item1.getsender_state() << " " << item1.getsender_ZIP() << " ";
cout << " ";
cout << "Recipient " << item1.getrecipient_name()<< " ";
cout << " " << item1.getsender_address() << " ";
cout << " " << item1.getrecipient_city() << " " <<
item1.getrecipient_state() << " " << item1.getrecipient_ZIP() << " ";
cout << "Cost $ " <