Question

/*

Colesha Pearman

CIS247C

ATM Application

May 4,2020

*/

//Bring in our libaries

#include"stdafx.h"

#include<iostream>

#include<conio.h>

#include<string>

#include<fstream>//read/write to files

#include<ctime>//time(0)

#include<iomanip>//setpresision std

using namespace std;

 

//create constant vaules-- cannot be changed

const int EXIT_VALUE = 5;

const float DAILY_LIMIT = 400.0f;

const string FILENAME = "Account.txt";

 

//create balance variable

double balance = 0.0;

 

//prototypes

void deposit(double* ptrBalance);

void withdrawal(double* ptrBalance, float dailyLimit);  //overloaded method-this verision does not take withdrawal amount

void withdrawal(double* ptrBalance, float dailyLimit, float amount);  //overloaded method that takes withdrawal amount

 

///Enrty point to the application

int main()

{

 

                //look for the starting balance; otherwise generate a random balance

                ifstream iFile(FILENAME.c_str());

                if (iFile.is_open())

                {

                                // did the file open? if so,read the balance

                                iFile >> balance;

                                iFile.close();

                }

                else

                {

                                //if the file did not open or does not exit,create a

                                //random  for the starting balance

 

                                srand(time(0));

                                const int MIN = 1000;

                                const int MAX = 10000;

                                balance = rand() % (MAX - MIN + 1) + MIN;

                }

 

                cout << fixed << setprecision(2) << "Starting Balance:$" << balance << endl;

 

                //pause before we clear the screen

                cout << "\nPress any key to continue...";

                _getch();

 

                //let's create pointer and set it to the balance variable location

                double*ptrBalance = &balance; //&means "address of"

 

//create loop variable BEFORE the loop

                short choice = 0;

 

                //Start the application

                do

                {

                                //show the menu

                                system("CIS");

                                cout << "Menu\n" << endl;

                                cout << "1)Deposit" << endl;

                                cout << "2)Withdrawal" << endl;

                                cout << "3)Check Balance" << endl;

                                cout << "4)Quick $40" << endl;

                                cout << "5)Exit" << endl;

 

                                //get user input

                                cout << "\nEnter your choice:";

                                cin >> choice;

 

                                //run code based on the user's choice

                                switch (choice)

                                {

                                case 1:

                                                cout << "Making a deposit..." << endl;

                                                break;

                                case 2:

                                                cout << "Making a withdrawal..." << endl;

                                                break;

                                case 3:

                                                cout << "Showing the current balance..." << endl;

                                                break;

                                case 4:

                                                cout << "Getting a quick $40..." << endl;

                                                break;

                                case 5:

                                                cout << "\nError. Please select from the menu." << endl;

                                                break;

                                }

                                cout << "\nPress any key to continue...";

                                _getch();

                } while (choice != EXIT_VALUE);

// now that the application is over, write the new balance to the file

ofstream oFile(FILENAME.c_str());

oFile << balance << endl;

oFile.close();

 

return 0;

}

 

///Make a deposit

void deposit(double* ptrBalance)

{

// get deposit and validate it

float deposit = 0.0f;

 

do

{

cout << "\nEnter deposit amount:";

 

cin >> deposit;

 

 

if (cin.fail()) // did they give us a character instead of a  number?

{

cin.clear(); // clears fail state

 

cin.ignore(INT16_MAX, '\n');

// clears keyboard buffer

 

cout << "\nError. Please use numbers only.\n" << endl;

deposit = -1; //set deposit to a "bad" number

continue; //restart the loop

 

}

if (deposit < 0.0f)   //check for negative number

cout << "\nError.Invalid deposit amount.\n" << endl;

} while (deposit < 0.0f);

 

//how do we get the double value location at the pointer?

//Dereference it using an asterisk!

*ptrBalance += deposit;    //same as:*ptrBalance = *ptrBalance + deposit;

 

cout << fixed << setprecision(2) << "\nCurrent ptrBalance: $" << *ptrBalance << endl;  // notice the asterisk

}

 

/// Make a withdrawal

void withdrawal(double* ptrBalance, float dailyLimit)

{

// get the withdrawal(you should vaildate this input)

float amount = 0.0f;

cout << "\nEnter withdrawal amout:";

cin >> amount;

 

//call the overloaded method version that takes

// the balance, dailyLimit, and withdrawal amount

withdrawal(ptrBalance, dailyLimit, amount);

}

 

/// Make a withdrawal- this overload accepts balance, dailyLimit and withdrawal amount

 

void withdrawal(double* ptrBalance, float dailyLimit, float amount)

{

//take away money from account and show the balance

if (amount > dailyLimit)

{

cout << "\nError.Amount eceeds daily limit." << endl;

}

else if (amount > *ptrBalance) //notic the aterisk to derference the pointer!

{

cout << "\nError. Insufficient funds." << endl;

}

else

{

*ptrBalance -= amount; // same as: *ptrBalance = *ptrBalance -amount;

cout << "\nHere is your cash: $" << amount << endl;

}

 

 

cout << fixed << setprecision(2) << "\nCurrent Balance: $" << *ptrBalance << endl;

}