Question

The cost to become a member of a fitness center is as follows: the senior citizens discount is 30%; if the membership is bought and paid for 12 or more months, the discount is 15%; if more than five personal training sessions are bought and paid for, the discount on each session is 20%. Write a menu-driven program that determines the cost of a new membership. Your program must contain a function that displays the general information about the fitness center and its charges, a function to get all the necessary information to determine the membership cost, and a function to determine the membership cost. Use appropriate parameters to pass information in and out of a function. (Do not use any global variables.)

Answer 1

Answer:

/ Header files section

#include <iostream>

#include <iomanip>

#include <string>

using namespace std;

// Function prototypes

void printGeneralInfo();

void readData(double& costPerMonth, double& costPerTraining,

bool& seniorCitizen, int& numOfSessions, int& number0fMonths);

double calcMembershipCost(double costPerMonth, double costPerTraining,

bool seniorCitizen, int numOfSessions, int numOfMonths);

//Program begins with a main function

int main()

{

//Declare variables

double costPerMonth;

double costPerTraining;

bool seniorCitizen;

int numOfSessions;

int numOfMonths;

double costMemberShip;

char choice;

//Read input from the user

cout << "\n*Welcome to Fitness Center*" << endl;

do

{

 printGeneralInfo();

 readData(costPerMonth,

  costPerTraining,

  seniorCitizen, numOfSessions,

  numOfMonths);

 costMemberShip = calcMembershipCost(costPerMonth, costPerTraining,

  seniorCitizen, numOfSessions, numOfMonths);

 cout << "\nCost of the new membership: $"

  << setprecision(2) << fixed

  << costMemberShip << endl;

 cout << "\nEnter 'Y' for another membership: ";

 cin >> choice;

} while (choice == 'Y' || choice == 'y');

return 0;

}

//Method definition of printGeneralInfo: It displays the general

//information about the fitness center and its charges

void printGeneralInfo()

{

cout << "\nThe discounts at this Fitness Center are:"

 << endl;

cout << "(a) 30% discount for the senior citizens."

 << endl;

cout << "(b) 15% discount if the membership is bought"

 << endl;

cout << "    and paid for 12 or more months" << endl;

cout << "(c) 20% discount on each session if more than"

 << endl;

cout << "    five personal training sessions are bought and paid for."

 << endl;

}

//Method definition of readData

void readData(double& costPerMonth,

double& costPerTraining,

bool& seniorCitizen, int& numOfSessions,

int& numOfMonths)

{

cout << "\nEnter the cost per month of a regular membership: $";

cin >> costPerMonth;

cout << "Enter the cost per a personal training session: $";

cin >> costPerTraining;

cout << "Enter 'Y' if you are senior citizen: ";

char ch;

cin >> ch;

if (ch == 'Y' || ch == 'y')

 seniorCitizen = true;

else

 seniorCitizen = false;

cout << "Enter the number of personal training sessions bought : ";

cin >> numOfSessions;

cout << "Enter the number of months paid for: ";

cin >> numOfMonths;

}

//Method definition of calcMembershipCost

double calcMembershipCost(double costPerMonth,

double costPerTraining,

bool seniorCitizen, int numOfSessions,

int numOfMonths)

{

double costMemberShip =  costPerMonth * numOfMonths;

if (seniorCitizen)

{

 costMemberShip = costMemberShip -

  (costPerMonth * 0.30 * numOfMonths);

}

if (numOfMonths >= 12)

{

 costMemberShip = costMemberShip -

  (costPerMonth * 0.15 * numOfMonths);

}

costMemberShip = costMemberShip + (costPerTraining * numOfSessions);

if (numOfSessions > 5)

{

      costMemberShip = costMemberShip -   (costPerTraining * 0.20 * numOfSessions);

}

return costMemberShip;

}

Explanation: