Posted by : Waqas Javed Thursday, 29 January 2015

1. Our Modern ATM machine has the following Menu
      a. Create new account
              i. When user selects this option, ask for username and password. Create a new text file                            with his/her name. If user already exists then ask the user to enter another name.
      b. Cash Withdraw
              i. Ask the user the amount he/she wants to withdraw. Check his account if the user has                           that amount of money in his/her account. If the amount exceeds, a message should be                           display saying that please enter less amount.
      c. Cash Deposit
      d. Fill Cash in ATM
              i. Ask for amount and add in ATM machine.
      f. The menu should be displayed again after every action. E.g., After cash withdrawal ATM                   software should display the menu again instead of exiting.


#include<iostream>
#include<stdio.h>
#include<conio.h>


using namespace std;

void main(){
char a;

FILE *myFile;
char name[10];
char password[10];
char temp;
int id_no = 0;
int user_id = 0;

int all_bal[1000];

int acc_bal = 0;
int bal = 0;
int counter = 0;
bool vl = 0;
int char_matched = 0;

int atm_bal = 0;


while (true){
cout << "Select Option: "
<< endl << "1. Create New Account"
<< endl << "2. Withdraw Cash"
<< endl << "3. Cash Deposit"
<< endl << "4. Cash fill in atm"
<< endl << "5. Account Summary" << endl;

a = _getch();

system("cls");

switch (a){
case '1':

cout << "Enter Your Name: ";
cin >> name;

cout << "Enter Your Password: ";

do{
temp = _getch();
cout << "*";
password[counter] = temp;
counter++;
} while (temp != 13 && counter < 10);
counter--;
password[counter] = '\0';
counter = 0;

cout << endl;

cout << "Enter Opening balance:";
cin >> acc_bal;

if (acc_bal < 0){
acc_bal = 0;
}


vl = 0;

myFile = fopen("all_names.txt", "r");
if (myFile){

while (fscanf(myFile, "%c", &temp) == 1){
if (temp != '-'){
if (name[counter] == temp){
char_matched++;
counter++;
}else {
char_matched = 0;
counter = 0;
}
}
if (temp == '-'){
if (char_matched == strlen(name)){
vl = 1;
}

counter = 0;
char_matched = 0;
}
}

fclose(myFile);
counter = 0;
char_matched = 0;
}




if (vl == 0){
myFile = fopen("all_names.txt", "a");
fprintf(myFile, "%s", name);
fprintf(myFile, "%c", '-');
fclose(myFile);

myFile = fopen("all_passwords.txt", "a");
fprintf(myFile, "%s", password);
fprintf(myFile, "%c", '-');
fclose(myFile);

myFile = fopen("all_accounts.txt", "a");
fprintf(myFile, "%d", acc_bal);
fprintf(myFile, "%c", '\n');
fclose(myFile);

cout << "Account created succesfully" << endl;
}
else {
cout << "Name Already In Use............." << endl;
}


break;
case '2':

cout << "Enter Your Name: ";
cin >> name;


vl = 0;
counter = 0;
char_matched = 0;
myFile = fopen("all_names.txt", "r");
if (myFile){
while (fscanf(myFile, "%c", &temp) == 1){
if (temp != '-'){
if (name[counter] == temp){
char_matched++;
counter++;
}
else {
char_matched = 0;
counter = 0;
}
}
if (temp == '-'){
if (char_matched == strlen(name)){
vl = 1;
user_id = id_no;
}

id_no++;

counter = 0;
char_matched = 0;
}
}
fclose(myFile);
counter = 0;
char_matched = 0;
}
else {
cout << "account does not exists..." << endl;
}

if (vl == 0){
cout << "account does not exists..." << endl;
}
else {
cout << "Please enter your password" << endl;

do{
temp = _getch();
cout << "*";
password[counter] = temp;
counter++;
} while (temp != 13 && counter < 10);
counter--;
password[counter] = '\0';
counter = 0;
cout << endl;


vl = 0;
counter = 0;
char_matched = 0;
id_no = 0;
myFile = fopen("all_passwords.txt", "r");
if (myFile){
while (fscanf(myFile, "%c", &temp) == 1){
if (temp != '-' && id_no == user_id){
if (password[counter] == temp){
char_matched++;
counter++;
}
else {
char_matched = 0;
counter = 0;
}
}
if (temp == '-'){
if (char_matched == strlen(password)){
vl = 1;
}

id_no++;

counter = 0;
char_matched = 0;
}
}

fclose(myFile);
counter = 0;
char_matched = 0;
}

if (vl == 1){
cout << "ACESS GURANTED***" << endl
<< "Enter Amount to withdraw: ";

cin >> acc_bal;

vl = 0;
counter = 0;
myFile = fopen("all_accounts.txt", "r");
if (myFile){
while (counter <= user_id){
counter++;
fscanf(myFile, "%d", &bal);
}
myFile = fopen("atm_balance.txt", "r");

if (myFile){
fscanf(myFile, "%d", &atm_bal);
} else {
myFile = fopen("atm_balance.txt", "w");
fprintf(myFile, "%d", atm_bal);
}

fclose(myFile);

if(bal < acc_bal){
cout << "You  Have only: " << bal << "$" << endl;
if(acc_bal > atm_bal && bal >= acc_bal) {
cout << "Machine Have only: " << atm_bal << "$" << endl;
}else if(acc_bal <= atm_bal && bal >= acc_bal){
myFile = fopen("all_accounts.txt", "r");
counter = 0;
while (fscanf(myFile, "%d", &all_bal[counter]) == 1){
counter++;
}
fclose(myFile);
all_bal[user_id] -= acc_bal;

myFile = fopen("all_accounts.txt", "w");
id_no = 0;
while (counter != 0){
fprintf(myFile, "%d", all_bal[id_no]);
fprintf(myFile, "%s", "\n");
counter--;
id_no++;
}

fclose(myFile);

atm_bal -= acc_bal;

myFile = fopen("atm_balance.txt", "w");
fprintf(myFile, "%d", atm_bal);
fclose(myFile);
cout << "Take your money. THankx.." << endl;
}

counter = 0;
char_matched = 0;
}
} else{
cout << "Acess Denied.." << endl;



}
id_no = 0;
user_id = 0;
break;
case '3':
cout << "Enter Your Name: ";
cin >> name;


vl = 0;
counter = 0;
char_matched = 0;
myFile = fopen("all_names.txt", "r");
if (myFile){
while (fscanf(myFile, "%c", &temp) == 1){
if (temp != '-'){
if (name[counter] == temp){
char_matched++;
counter++;
}
else {
char_matched = 0;
counter = 0;
}
}
if (temp == '-'){
if (char_matched == strlen(name)){
vl = 1;
user_id = id_no;
}

id_no++;

counter = 0;
char_matched = 0;
}
}
fclose(myFile);
counter = 0;
char_matched = 0;
}
else {
cout << "account does not exists..." << endl;
}

if (vl == 0){
cout << "account does not exists..." << endl;
}
else {
cout << "Please enter your password" << endl;

do{
temp = _getch();
cout << "*";
password[counter] = temp;
counter++;
} while (temp != 13 && counter < 10);
counter--;
password[counter] = '\0';
counter = 0;
cout << endl;


vl = 0;
counter = 0;
char_matched = 0;
id_no = 0;
myFile = fopen("all_passwords.txt", "r");
if (myFile){
while (fscanf(myFile, "%c", &temp) == 1){
if (temp != '-' && id_no == user_id){
if (password[counter] == temp){
char_matched++;
counter++;
}
else {
char_matched = 0;
counter = 0;
}
}
if (temp == '-'){
if (char_matched == strlen(password)){
vl = 1;
}

id_no++;

counter = 0;
char_matched = 0;
}
}

fclose(myFile);
counter = 0;
char_matched = 0;
}

if (vl == 1){
cout << "ACESS GURANTED***" << endl
<< "Enter Amount to deposit: ";

cin >> acc_bal;

vl = 0;
counter = 0;
myFile = fopen("all_accounts.txt", "r");
if (myFile){
while (counter <= user_id){
counter++;
fscanf(myFile, "%d", &bal);
}
myFile = fopen("atm_balance.txt", "r");

if (myFile){
fscanf(myFile, "%d", &atm_bal);
} else {
myFile = fopen("atm_balance.txt", "w");
fprintf(myFile, "%d", atm_bal);
}

fclose(myFile);
if(acc_bal <0){
myFile = fopen("all_accounts.txt", "r");
counter = 0;
while (fscanf(myFile, "%d", &all_bal[counter]) == 1){
counter++;
}
fclose(myFile);
all_bal[user_id] += acc_bal;

myFile = fopen("all_accounts.txt", "w");
id_no = 0;
while (counter != 0){
fprintf(myFile, "%d", all_bal[id_no]);
fprintf(myFile, "%s", "\n");
counter--;
id_no++;
}

fclose(myFile);


cout << "CASH DEPOSITED. THankx.." << endl;
}

fclose(myFile);
counter = 0;
char_matched = 0;
}
} else{
cout << "Acess Denied.." << endl;



}
id_no = 0;
user_id = 0;
break;
case '4':
cout << "Enter Amount to add: ";
cin >> bal;

myFile = fopen("atm_balance.txt", "r");

if (myFile){
fscanf(myFile, "%d", &atm_bal);
} else {
myFile = fopen("atm_balance.txt", "w");
fprintf(myFile, "%d", atm_bal);
}

fclose(myFile);

atm_bal += bal;

myFile = fopen("atm_balance.txt", "w");
fprintf(myFile, "%d", atm_bal);
fclose(myFile);

break;
default:
break;
}

cout << "Press any key to continue....";
_getch();
system("cls");
}
}

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