string Customer::statement() {
double totalAmount = 0;
int frequentRenterPoints = 0;
Enumeration rentals = _rentals.elements();
string result = "Rental Record for "+ getName() + "\n";
while(rentals.hasMoreElements()) {
double thisAmount = 0;
Rental each = (Rental)rentals.nextElement();
thisAmount = amountFor(each);
//add frequent renter points
frequentRenterPoints ++;
//add bonus for a two day new release rental
if((each.getMovice().getPriceCode() == Movice.NEW_RELEASE)&& each.getDaysRented() > 1) frequentRenterPoints ++;
//show figures for this rental
result += "\t" + each.getMovice().getTitle() + "\t" + string.valueOf(thisAmount) +"\n";
totalAmount += thisAmount;
}
//add footer lines
result += "Amount owed is "+ string.valueof(totalAmount)+"\n";
result += "You earned "+ string.valueof(frequentRenterPoints)+" frequent renter points";
return result;
}
//calcualtes the amount for a rental
double Customer::amountFor(const Rental& r) const{
double thisAmount = 0;
if(r.getVideo().getCode() == Video::REGULAR) {
thisAmount += 2;
if (r.getDaysRented() > 2)
thisAmount += (r.getDaysRented() - 2) * 1.5;
}
else if(r.getVideo().getCode() ==Video::NEW_RELEASE) {
thisAmount += r.getDaysRented() * 3;
}
else if(r.getVideo().getCode() == Video::CHILDRENS) {
thisAmount += 1.5;
if (r.getDaysRented() > 3)
thisAmount += (r.getDaysRented() - 3) * 1.5;
}
return thisAmount;
}
// customer rental statement
std::string Customer::statement() const {
double totalAmount = 0;
int frequentRenterPoints = 0;
std::string result = "Rental Record for " + getName() + "\n";
for(std::vector<Rental>::const_iterator it = rentals.begin(); it != rentals.end(); ++it) {
double thisAmount = 0;
Rental each = (Rental) *it;
//determine amounts for each line
switch (each.getMovie().getPriceCode()) {
case Movie::REGULAR:
thisAmount += 2;
if (each.getDaysRented() > 2)
thisAmount += (each.getDaysRented() - 2) * 1.5;
break;
case Movie::NEW_RELEASE:
thisAmount += each.getDaysRented() * 3;
break;
case Movie::CHILDRENS:
thisAmount += 1.5;
if (each.getDaysRented() > 3)
thisAmount += (each.getDaysRented() - 3) * 1.5;
break;
}
// add frequent renter points
++frequentRenterPoints;
// add bonus for a two day new release rental
if ((each.getMovie().getPriceCode() == Movie::NEW_RELEASE) &&
each.getDaysRented() > 1) frequentRenterPoints ++;
//show figures for this rental
result += "\t" + each.getMovie().getTitle()+ "\t";
std::ostringstream amount_stream;
amount_stream << thisAmount;
result += amount_stream.str();
result += "\n";
totalAmount += thisAmount;
}
//add footer lines
// total amount owed
result += "Amount owed is: ";
std::ostringstream owed_stream;
owed_stream << totalAmount;
result += owed_stream.str();
result += "\n";
// frequent renter points earned
result += "You earned: ";
std::ostringstream frequent_stream;
frequent_stream << frequentRenterPoints;
result += frequent_stream.str();
result += " frequent renter points\n";
return result;
}
//拆分函数(提炼到独立函数)
//独立函数名称修改
double amountFor(Rental aRental) {
double result = 0;
//determin amounts for each line
switch(aRental.getMovie().getPriceCode()) {
case Movice.REGULAR:
result += 2;
if(aRental.getDaysRented() > 2) {
result += (aRental.getDaysRented() - 2) * 1.5;
}
break;
case Movice.NEW_RELEASE:
result += aRental.getDaysRented() * 3;
break;
case Movice.CHILDRENS:
result += 1.5;
if (aRental.getDaysRented() > 3) {
result += (aRental.getDaysRented() - 3) * 1.5;
}
break;
}
return result;
}
// calculates amount for current statement
double Customer::amountFor(const Rental& rental) const {
double thisAmount = 0;
switch(rental.getVideo().getCode()) {
case Video::REGULAR:
thisAmount += 2;
if (rental.getDaysRented() > 2)
thisAmount += (rental.getDaysRented() - 2) * 1.5;
break;
case Video::NEW_RELEASE:
thisAmount += rental.getDaysRented() * 3;
break;
case Video::CHILDRENS:
thisAmount += 1.5;
if (rental.getDaysRented() > 3)
thisAmount += (rental.getDaysRented() - 3) * 1.5;
break;
}
return thisAmount;
}
string Customer::statement() {
double totalAmount = 0;
int frequentRenterPoints = 0;
ostringstream result;
result << "Rental Record for " << getName () << "\n";
for(Iter iter = rentals.begin(); iter != rentals.end(); ++iter) {
double thisAmount = 0;
Rental* each = *iter;
// determines the amount for each line
switch (each->getMovie()->getPriceCode()) {
case Movie::Regular:
thisAmount += 2;
if (each->getDaysRented () > 2)
thisAmount += (each->getDaysRented () - 2) * 1.5;
break;
case Movie::NewRelease:
thisAmount += each->getDaysRented () * 3;
break;
case Movie::Childrens:
thisAmount += 1.5;
if (each->getDaysRented () > 3)
thisAmount += (each->getDaysRented () - 3) * 1.5;
break;
}
frequentRenterPoints++;
if (each->getMovie()->getPriceCode() == Movie::NewRelease && each->getDaysRented () > 1)
frequentRenterPoints++;
result << "\t" << each->getMovie()->getTitle() << "\t" << thisAmount << "\n";
totalAmount += thisAmount;
}
result << "You owed " << totalAmount << "\n" << "You earned " << frequentRenterPoints << " frequent renter points\n";
return result.str();
}