Question

Write a menu-driven program to keep track of the inventory and sales for a vending machine company's machines at various college campuses. Input File vendingMachines.xt Contains the data for each of the machines. The data on each machine consists of 6 lines of input. The first line contains the location (college), 5 additional lines contain a number representing the number of bottles in the machine for each of the brands -Coke, Diet Coke, Sprite, Sprite Zero and Dasani Requirements . Use the following Structure enum SodaBrands (COKE, DIET_COKE, SPRITE, SPRITE_ZERO, DASANI struct Drinks double price; int numSodas const int MAX SODA BRANDS: 5 struct vendingMachine string location; Drinks sodasIMAX SODABRANDS]; . Define an array of vendingMachine structs to store the data from the input file. Assume that there are no more than 10 vendingMachines. NOTE that each struct contains an array of Drinks structs indexed by the enumerated type SodaBrands. . Main Program . Read the input file into the array of structs . Use a while loop, calling functions to display the menu of locations and input the user's location choice, and process the user's selection. . At the end of the program display the contents of the array to show that the inventory has been updated based on the sales . Suggested Functions

INPUT FILE FOR PROJECT

Sinclair Community College
0.50 6
0.75 5
0.50 9
0.75 4
1.00 3
Wright State University
0.90 4
1.00 6
0.90 3
1.00 2
1.25 4
University of Dayton
1.00 3
1.25 5
1.00 2
1.25 6
2.00 4
The Ohio State University
0.80 5
0.90 4
0.80 7
0905 3
1.50 2
Clark State Community College
0.75 1
0.85 2
0.75 4
0.85 2
1.00 5
Ohio University
1.00 2
1.25 6
1.00 7
1.25 3
1.50 2

Answer 1

C++ code:

#include<iostream>

#include<fstream>

#include<cstdlib>

using namespace std;

int n;

enum SodaBrands {COKE,DIET_COKE,SPRITE,SPRITE_ZERO,DASAN};

struct Drinks

{

                double price;

                int numSodas;  

};

const int MAX_SODA_BRANDS = 5;

struct vendingMachine

{

                string location;

                Drinks sodas[MAX_SODA_BRANDS];

};

SodaBrands convertDrink(string s)

{

                if(s=="Coke") return COKE;

                else if(s=="Diet Coke") return DIET_COKE;

                else if(s=="Sprite") return SPRITE;

                else if(s=="Sprite Zero") return SPRITE_ZERO;

                else if(s=="Dasani Water") return DASAN;

}

void getDrinkName(SodaBrands sb, string& str)

{

                if(sb==COKE) str = "Coke";

                else if(sb==DIET_COKE) str = "Diet Coke";

                else if(sb==SPRITE) str = "Sprite";

                else if(sb==SPRITE_ZERO) str = "Sprite Zero";

                else if(sb==DASAN) str = "Dasani Water";

               

}

int getLocation(vendingMachine vM[])

{

                cout<<"Select your location from the following : "<<endl;

                for(int i=0;i<n;i++)

                {

                                cout<<i<<": "<<vM[i].location<<endl;   

                }

               

                cout<<n<<": Exit"<<endl;

               

                int t;

                cout<<endl<<"Your Location: ";

                cin>>t;

                while(t<0 || t>n)

                {

                                cout<<"Invalid input!! Enter your location again: ";

                                cin>>t;

                }

                return t;

}

int getDrinkSelection()

{

                cout<<"Soda choices: "<<endl<<endl;

                for(int s=0; s<5; s = s+1)

                {

                                string str ;

                                getDrinkName(SodaBrands(s),str);

                                cout<<s<<": "<<str<<endl;

                }

               

                int t;

                cout<<endl<<"Enter Soda Choice: ";

                cin>>t;

                while(t<0 || t>4)

                {

                                cout<<"Invalid input!! Enter your soda choice again : ";

                                cin>>t;

                }

                return t;

}

void makePurchase(vendingMachine vM[],int x,int y)

{

                cout<<"You selected location: "<<vM[x].location<<endl;

                string str ;

                getDrinkName(SodaBrands(y),str);

                cout<<"Drink Selection: "<<str<<endl;

               

                double amt;

                cout<<"Please enter amount paid $";

                cin>>amt;

               

                cout<<"Change due: $";

                printf("%.2f\n", amt - vM[x].sodas[y].price);

                if(vM[x].sodas[y].numSodas>0 )vM[x].sodas[y].numSodas-=1;

}

void showVendingMachines(vendingMachine vM[])

{

                for(int k=0;k<n;k++)

                {

                                cout<<"Machine location: "<<vM[k].location<<endl;

                                for(int j = 0;j<5;j++)

                                {

                                                string str ;

                                                getDrinkName(SodaBrands(j),str);

                                                cout<<"\t"<<str<<" Price - "<<vM[k].sodas[j].price<<" # sodas: "<<vM[k].sodas[j].numSodas<<endl;   

                                }

                                cout<<endl;

                }

}

void loadVendingMachines(vendingMachine vM[])

{

                string file = "vendingMachines.txt";

                ifstream fobj;

                fobj.open(file);

                if(!fobj.good())

                {

                                cout<<"Problem in opening file!!"<<endl;

                }

                else

                {

                                int i = 0 ;

                                while(fobj.good())

                                {

                                                getline(fobj,vM[i].location);

                                               

                                                fobj>>vM[i].sodas[COKE].price;

                                                fobj>>vM[i].sodas[COKE].numSodas;

                                               

                                                fobj>>vM[i].sodas[DIET_COKE].price;

                                                fobj>>vM[i].sodas[DIET_COKE].numSodas;

                                                fobj>>vM[i].sodas[SPRITE].price;

                                                fobj>>vM[i].sodas[SPRITE].numSodas;                                

                                                fobj>>vM[i].sodas[SPRITE_ZERO].price;

                                                fobj>>vM[i].sodas[SPRITE_ZERO].numSodas;

                                                fobj>>vM[i].sodas[DASAN].price;

                                                fobj>>vM[i].sodas[DASAN].numSodas;

                               

                                                string str;

                                                getline(fobj,str);

                                                i++;

                                }

                                n = i;

                }

               

}

int main()

{

                vendingMachine vM[10];

                loadVendingMachines(vM);

                while(1)

                {

                                int t = getLocation(vM);

                                if(t==n) {

                                                showVendingMachines(vM);

                                                exit(0);

                                }

                                int s = getDrinkSelection();

                                makePurchase(vM,t,s);

                                cout<<endl;

                }

               

                return 0;

}

OUTPUT

Select your location from the following 0: Sinclair Community College 1: Wright State University 2: University of Dayton 3: The Ohio State University 4: Clark State Community College 5: Ohio University 6: Exit Your Location: e Soda choices: e: Coke 1: Diet Coke 2: Sprite 3: Sprite Zero 4: Dasani Water Enter Soda Choice: 2 You selected location: Sinclair Community College Drink Selection: Sprite Please enter amount paid $1.00 Change due: $0.50 Select your location from the following: 0: Sinclair Community College 1: Wright State University 2: University of Dayton 3: The Ohio State University 4: Clark State Community College 5: Ohio University 6: Exit Your Location: 3 Soda choices: e: Coke 1: Diet Coke 2: Sprite 3: Sprite Zero 4: Dasani Water

Enter Soda Choice: 4 You selected location: The Ohio State University Drink Selection: Dasani Water Please enter amount paid $2.0e Change due: $0.50 Select your location from the following: 0: Sinclair Community College 1: Wright State University 2: University of Dayton 3: The Ohio State University 4: Clark State Community College 5: Ohio University 6: Exit Your Location: 6 Machine location: Sinclair Community College Coke Price - 0.5 # sodas: 6 Diet Coke Price - 0.75 # sodas: 5 Sprite Price - 0.5 # sodas: 8 Sprite Zero Price - 0.75 # sodas: 4 Dasani Water Price - 1 # sodas: Machine location: Wright State University Coke Price - 0.9 # sodas: 4 Diet Coke Price - 1 # sodas: 6 Sprite Price - 0.9 # sodas: 3 Sprite Zero Price - 1 # sodas: 2 Dasani Water Price - 1.25 # sodas: 4 Machine location: University of Dayton Coke Price - 1 # sodas: 3 Diet Coke Price - 1.25 # sodas: 5 Sprite Price - 1 # sodas: 2 Sprite Zero Price - 1.25 # sodas: 6 Dasani Water Price - 2 # sodas: 4 Machine location: The Ohio State University Coke Price - 0.8 # sodas: 5 Diet Coke Price - 0.9 # sodas: 4 Sprite Price - 0.8 # sodas: 7 Sprite Zero Price - 905 # sodas: 3 Dasani Water Price - 1.5 # sodas: 1

Machine location: The Ohio State University Coke Price - 0.8 # sodas: 5 Diet Coke Price - 0.9 # sodas: 4 Sprite Price - 0.8 # sodas: 7 Sprite Zero Price - 905 # sodas: 3 Dasan! Water Price - 1.5 # sodas: 1 Machine location: Clark State Community College Coke Price - 0.75 # sodas: 1 Diet Coke Price - 0.85 # sodas: 2 Sprite Price - 0.75 # sodas: 4 Sprite Zero Price - 0.85 # sodas: 2 Dasani Water Price - 1 # sodas: 5 Machine location: Ohio University Coke Price - 1 # sodas: 2 Diet Coke Price - 1.25 # sodas: 6 Sprite Price - 1 # sodas: 7 Sprite Zero Price - 1.25 # sodas: 3 Dasani Water Price - 1.5 # sodas: 2