Showing posts with label filling. Show all posts
An assingment of nust. ATM machine software using file handling in C++
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.
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");
}
}
Thursday, 29 January 2015
Posted by Unknown
Filing a name and searching it again to match from file in C.
This code demonstrate the filing part of C language. This program is built to save name of users in a file on hard disk you can also retrieve that file from hard disk using this program and could also search how many times a name is found in a file.
The program also uses some basic function of C++ that are just for convenience you can replace them by C language
printf("some text"); is used as cout << "some text";
scanf(&d) id used as cin >> d;
so dont worry if you need code in C only you could replace it
The special data type FILE is used used to create stream for input or output data on hard disk.
in fopen function a mean file is opened in append mode, r mean read mode, w mean write mode.
system("cls"); is iostream part so if you want avoid C++ you could simply delete it that will not effect the code. this function just delete all data from console and clear it.
#include<iostream>
#include<stdio.h>
#include<conio.h>
using namespace std;
void main() {
FILE* myFile;
FILE* readFile;
char name[20];
int con = 1;
char temp;
while (true){
myFile = fopen("names.txt", "a");
cout << "Press 1 to Enter name..2 to search name.. 3 to display file: ";
cin >> con;
system("cls");
//enter name
if (con == 1){
cout << "Enter A name: ";
cin >> name;
fprintf(myFile, "%s", name);
fprintf(myFile, "%c", '-');
cout << "\nNAME ENTERED\n";
}
fclose(myFile);
//search in file
int counter = 0;
readFile = fopen("names.txt", "r");
if (con == 2){
cout << "Enter a name to search:";
cin >> name;
int matched = 0;
int chars = strlen(name);
while (fscanf(readFile, "%c", &temp) == 1){
if(temp!= '-'){
if(name[matched] == temp){
matched++;
} else{
matched = 0;
}
} else if(matched == chars){
counter++;
matched = 0;
} else{
matched = 0;
}
}
}
if(counter > 0){
cout << "\n\aName is found in file " << counter << " times.\n";
} else if(con == 2) {
cout << "Name is not in file...\n";
}
if(con == 3){
//display file
fclose(readFile);
fopen("names.txt", "r");
cout << "Display File text:\n";
while (fscanf(readFile, "%c", &temp)== 1){
if(temp != '-'){
printf("%c", temp);
} else {
printf("\n");
}
}
}
printf("\n");
}
_getch();
}
The program also uses some basic function of C++ that are just for convenience you can replace them by C language
printf("some text"); is used as cout << "some text";
scanf(&d) id used as cin >> d;
so dont worry if you need code in C only you could replace it
The special data type FILE is used used to create stream for input or output data on hard disk.
in fopen function a mean file is opened in append mode, r mean read mode, w mean write mode.
system("cls"); is iostream part so if you want avoid C++ you could simply delete it that will not effect the code. this function just delete all data from console and clear it.
#include<iostream>
#include<stdio.h>
#include<conio.h>
using namespace std;
void main() {
FILE* myFile;
FILE* readFile;
char name[20];
int con = 1;
char temp;
while (true){
myFile = fopen("names.txt", "a");
cout << "Press 1 to Enter name..2 to search name.. 3 to display file: ";
cin >> con;
system("cls");
//enter name
if (con == 1){
cout << "Enter A name: ";
cin >> name;
fprintf(myFile, "%s", name);
fprintf(myFile, "%c", '-');
cout << "\nNAME ENTERED\n";
}
fclose(myFile);
//search in file
int counter = 0;
readFile = fopen("names.txt", "r");
if (con == 2){
cout << "Enter a name to search:";
cin >> name;
int matched = 0;
int chars = strlen(name);
while (fscanf(readFile, "%c", &temp) == 1){
if(temp!= '-'){
if(name[matched] == temp){
matched++;
} else{
matched = 0;
}
} else if(matched == chars){
counter++;
matched = 0;
} else{
matched = 0;
}
}
}
if(counter > 0){
cout << "\n\aName is found in file " << counter << " times.\n";
} else if(con == 2) {
cout << "Name is not in file...\n";
}
if(con == 3){
//display file
fclose(readFile);
fopen("names.txt", "r");
cout << "Display File text:\n";
while (fscanf(readFile, "%c", &temp)== 1){
if(temp != '-'){
printf("%c", temp);
} else {
printf("\n");
}
}
}
printf("\n");
}
_getch();
}
Saturday, 17 January 2015
Posted by Unknown
