Create a menu for the following tasks:

1. Add Customer Data

2. Show Existing Customer Data

3. Delete Customer Data 4. UnDelete Customer Data

X. Exit

Menu Item 1 should do the tasks originally done in Assignment 2.

Menu Item 2 should be a coded in a method showExistingCustomerData. It should read the "Customer.dat" file and display CustomerNumber, CustomerName and isDeleted.

Menu Item 3 should prompt for a Customer Number to delete. It should then read the Customer Data file and if a matching customer is found, it should changed the item isDeleted to Y and 'update' the file. If no customer number is found, it should display "Customer Number #### not found to delete.". ( ##### is the entered customer number). If the customer is already deleted, it should display "Customer is already deleted".

A note regarding 'updates'. You can rewrite the entire structure or use the file.seekp methods to do the updates.

Menu Item 4 should prompt for a Customer Number to un-delete. It should then read the Customer Data file and if a matching customer is found, it should changed the item isDeleted to N and 'update' the file. If no customer number is found, it should display "Customer Number #### not found to delete.". ( ##### is the entered customer number). If the customer is already not deleted, it should display "Customer is not already deleted"

Tips:This task may require you to change how the file is opened or optionally use additional file open and closes. Always confirm the file does not get deleted after a program restart.

"Customers.dat"

The program needs to create the Customers.dat file if it does not exist.

const int NAME_SIZE = 20; const int STREET_SIZE = 30; const int CITY_SIZE = 20; const int STATE_CODE_SIZE = 3;

struct Customers { long customerNumber; char name[NAME_SIZE]; char streetAddress_1[STREET_SIZE]; char streetAddress_2[STREET_SIZE]; char city[CITY_SIZE]; char state[STATE_CODE_SIZE]; int zipCode;

char isDeleted; char newLine; };

#include

#include

#include

using namespace std;

const int NAME_SIZE = 20;

const int STREET_SIZE = 30;

const int CITY_SIZE = 20;

const int STATE_CODE_SIZE = 3;

const string FILENAME = "Customers.dat";

struct Customers {

long customerNumber;

char name[NAME_SIZE];

char streetAddress_1[STREET_SIZE];

char streetAddress_2[STREET_SIZE];

char city[CITY_SIZE];

char state[STATE_CODE_SIZE];

int zipCode;

char isDeleted;

char newLine;

};

int main()

{

cout<<"1 > Add Customer Data " << endl;

cout<<"2 > Show Existing Customer Data" << endl;

cout<<"3 > Delete Customer Data" << endl;

cout<<"4 > UN-Delete Customer Data" << endl;

Customers customer;

char again;

fstream customersFile(FILENAME, ios::in | ios::binary);

if (customersFile.fail()) {

cout << FILENAME << " not found. Will build it." << endl;

}

customersFile.close();

customersFile.open(FILENAME, ios::app | ios::binary);

do {

customer.isDeleted = 'N';

customer.newLine = ' ';

cout << "Enter the following Customer Information for Customer Number " << custNumber << endl;

cout << "Customer Name: ";

cin.getline(customer.name, NAME_SIZE);

cout << "Street Address 1: ";

cin.getline(customer.streetAddress_1, STREET_SIZE);

cout << "Street Address 2: ";

cin.getline(customer.streetAddress_2, STREET_SIZE);

cout << "City: ";

cin.getline(customer.city, CITY_SIZE);

cout << "State: ";

cin.getline(customer.state, STATE_CODE_SIZE);

cout << "Zip Code: ";

cin >> customer.zipCode;

cin.ignore();

customersFile.write(reinterpret_cast(&customer), sizeof(customer));

cout << "Enter another customer record ? :";

cin >> again;

cin.ignore();

custNumber++;

} while (toupper(again)== 'Y');

customersFile.close();

system("pause");

return 0;

}