├── record.bin
├── README.md
├── LICENSE
└── main.c


/record.bin:
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https://raw.githubusercontent.com/amulifts/bank-management-system-c/HEAD/record.bin


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/README.md:
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 1 | # Bank Management System
 2 | 
 3 | A simple implementation of Bank management System in C programming lanaguage completed as a mini project.
 4 | 
 5 | ## Usage
 6 | 
 7 | ```powershell
 8 |     gcc main.c -o main.exe
 9 | ```
10 | 
11 | ## Features
12 | 
13 | - Admin mode and user mode
14 | 
15 | - View all registered records at once as **admin**
16 | 
17 | - Create, read, update and delete records (CRUD)
18 | 
19 | - Search for particular record based on **name** or **account**
20 | 
21 | - Transaction (balance enquiry, cash deposit, cash withdrawl)
22 | 
23 | ## Team
24 | 
25 | <a href = "https://github.com/amulifts"><img src = "https://avatars.githubusercontent.com/u/49828737?v=4" width="144"></a>
26 | 
27 | ## License
28 | 
29 | This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details
30 | 


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2022 Aman Khadka
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/main.c:
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  1 | #include <stdio.h>
  2 | #include <stdlib.h>
  3 | #include <string.h>
  4 | #include <windows.h>
  5 | #include <conio.h>
  6 | 
  7 | void admin();
  8 | void login();
  9 | void menu();
 10 | void transaction();
 11 | void option();
 12 | void menuexit();
 13 | void chkblnc();
 14 | void deposit();
 15 | void withdrawl();
 16 | void search();
 17 | void search_acc();
 18 | void search_name();
 19 | void view();
 20 | void add();
 21 | void edit();
 22 | void del();
 23 | void about();
 24 | 
 25 | int verify(); //for verifying admin and user
 26 | int chkacc();
 27 | 
 28 | COORD coord = {0, 0};
 29 | int m,r; //m in main and r in record
 30 | 
 31 | char id[20], password[15];
 32 | 
 33 | struct record {
 34 |     char name[25];
 35 |     int account;
 36 |     char phone[15];
 37 |     char address[25];
 38 |     char email[35];
 39 |     char citiz[20];
 40 |     double blnc;
 41 |     char UserID[10];
 42 | } rec;
 43 | 
 44 | void gotoxy(int a, int b) {
 45 |     coord.X = a;
 46 |     coord.Y = b;
 47 |     SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
 48 | }
 49 | 
 50 | int main() {
 51 |     system("color f4");
 52 |     gotoxy(43, 4);
 53 |     printf(" WELCOME TO TBC BANKING SYSTEM ");
 54 |     gotoxy(50, 8);
 55 |     printf("ACCOUNT TYPE");
 56 |     gotoxy(44, 10);
 57 |     printf("[1] . ADMINISTRATOR ");
 58 |     gotoxy(44, 11);
 59 |     printf("[2] . USER ");
 60 |     gotoxy(44, 14);
 61 |     printf("Enter Your Choice .... ");
 62 |     scanf("%d", &m);
 63 |     if (m != 1 && m != 2) {
 64 |         system("cls");
 65 |         main();
 66 |     }
 67 |     system("CLS");
 68 |     admin();
 69 |     return 0;
 70 | }
 71 | 
 72 | void admin() {
 73 |     system("color f4");
 74 |     gotoxy(43, 4);
 75 |     printf(" WELCOME TO TBC BANKING SYSTEM ");
 76 |     login();
 77 |     if (verify() == 1) {
 78 |         if (m == 1)
 79 |             menu();
 80 |         else
 81 |             transaction();
 82 |     } else if (verify() == 0) {
 83 |         system("CLS");
 84 |         gotoxy(43, 16);
 85 |         printf("Incorrect Username / Password !!!!");
 86 |         admin();
 87 |     }
 88 | }
 89 | 
 90 | // Takes the user-name and password .
 91 | void login() {
 92 |     int i = 0;
 93 |     gotoxy(44, 10);
 94 |     printf("Enter The Username : ");
 95 |     scanf(" %[^\n]", id);
 96 |     gotoxy(44, 12);
 97 |     printf("Enter The Password : ");
 98 |     scanf(" %[^\n]", password);
 99 | }
100 | 
101 | // verifies the user-name and password .
102 | int verify() {
103 |     char a;
104 |     if (m == 1) {
105 |         if ((strcmp(id, "admin") == 0 && strcmp(password, "admin") == 0)) {
106 |             gotoxy(38, 16);
107 |             printf("You Have Successfully Logged In : \" %s \" ", id);
108 |             gotoxy(44, 20);
109 |             printf("Press any key to continue .... ");
110 |             getch();
111 |             return 1;
112 |         } else
113 |             return 0;
114 |     } else if (m == 2) {
115 |         if (strcmp(id, "user") == 0 && strcmp(password, "user") == 0) {
116 |             gotoxy(38, 16);
117 |             printf("You Have Successfully Logged In : \" %s \" ", id);
118 |             gotoxy(44, 20);
119 |             printf("Press any key to continue .... ");
120 |             getch();
121 |             return 1;
122 |         } else
123 |             return 0;
124 |     }
125 |     return 0;
126 | }
127 | 
128 | // displays the main user interface screen of program .
129 | void menu() {
130 |     system("CLS");
131 |     gotoxy(48, 4);
132 |     printf("WELCOME TO MAIN MENU");
133 |     gotoxy(44, 8);
134 |     printf("[1] . View Customer Accounts");
135 |     gotoxy(44, 9);
136 |     printf("[2] . Customer Account Registration");
137 |     gotoxy(44, 10);
138 |     printf("[3] . Edit Customer Account");
139 |     gotoxy(44, 11);
140 |     printf("[4] . Delete Customer Account");
141 |     gotoxy(44, 12);
142 |     printf("[5] . Search Customer Account");
143 |     gotoxy(44, 13);
144 |     printf("[6] . Transaction");
145 |     gotoxy(44, 14);
146 |     printf("[7] . Log Out !!! ");
147 |     gotoxy(44, 15);
148 |     printf("[8] . About US ");
149 |     gotoxy(43, 20);
150 |     printf("Please Enter Your Choice [1-8] : ");
151 |     option();
152 | }
153 | 
154 | // takes user choice and goes to desired function .
155 | void option() {
156 |     int i;
157 |     scanf("%d", &i);
158 |     system("CLS");
159 |     switch (i) {
160 |         case 1:
161 |             view();
162 |             break;
163 |         case 2:
164 |             add();
165 |             break;
166 |         case 3:
167 |             edit();
168 |             break;
169 |         case 4:
170 |             del();
171 |             break;
172 |         case 5:
173 |             search();
174 |         case 6:
175 |             transaction();
176 |             break;
177 |         case 7:
178 |             menuexit();
179 |             break;
180 |         case 8:
181 |             about();
182 |             break;
183 |         default:
184 |             menu();
185 |     }
186 | }
187 | 
188 | // module for viewing account details
189 | void view() {
190 |     int i = 7;
191 |     struct record rec;
192 |     FILE *f;
193 |     //rb = reading binary
194 |     f = fopen("record.bin", "rb");
195 |     gotoxy(40, 3);
196 |     printf("CUSTOMERS LIST");
197 |     gotoxy(5, 5);
198 |     printf("A/C No.");
199 |     gotoxy(13, 5);
200 |     printf("Account Name");
201 |     gotoxy(34, 5);
202 |     printf("UserID");
203 |     gotoxy(49, 5);
204 |     printf("Email Address");
205 |     gotoxy(85, 5);
206 |     printf("Phone No.");
207 |     gotoxy(99, 5);
208 |     printf("Balance");
209 |     gotoxy(5, 6);
210 |     // fread() = for reading binary data
211 |     // This reads the contents of a structure variable from the file and stores it in the variable rec.
212 |     // The fread() function will keep returning 1 until there are records in the file.
213 |     // As soon as the EOF is encountered fread() will return a value less than 1 and the condition in the while loop become false and the control comes out of the while loop.
214 |     while (fread(&rec, sizeof(rec), 1, f)) {
215 |         gotoxy(7, i);
216 |         printf("%d", rec.account);
217 |         gotoxy(13, i);
218 |         printf("%s", rec.name);
219 |         gotoxy(34, i);
220 |         for (r = 0; r < 10; r++) {
221 |             printf("%d", rec.UserID[r]);
222 |         }
223 |         gotoxy(49, i);
224 |         printf("%s", rec.email);
225 |         gotoxy(85, i);
226 |         printf("%s", rec.phone);
227 |         gotoxy(99, i);
228 |         printf("$%.2lf", rec.blnc);
229 |         i++;
230 |     }
231 |     // close the file
232 |     fclose(f);
233 |     int x;
234 |     gotoxy(42, i + 5);
235 |     printf("Press [Enter] to return back to main menu. ");
236 |     x = getch();
237 |     // 13 = '\r' i.e carriage return
238 |     if (x == 13) {
239 |         menu();
240 |     } else
241 |         view();
242 | }
243 | 
244 | //module for adding accounts.
245 | void add() {
246 |     char c;
247 |     struct record rec;
248 |     FILE *f;
249 |     //ab = append binary
250 |     f = fopen("record.bin", "ab");
251 |     int i = 0, x;
252 |     // first we evaluate body and check condition
253 |     do {
254 |         system("CLS");
255 |         gotoxy(24, 4);
256 |         printf("\t\t\tCUSTOMER ACCOUNT REGISTRATION");
257 |         gotoxy(36, 8);
258 |         printf("[1] . Enter Your Name           : ");
259 |         scanf(" %[^\n]", rec.name);
260 |         gotoxy(36, 9);
261 |         printf("[2] . Enter Your Account Number : ");
262 |         scanf(" %d", &rec.account);
263 |         gotoxy(36, 10);
264 |         printf("[3] . Enter Your Phone Number   : ");
265 |         scanf(" %[^\n]", rec.phone);
266 |         gotoxy(36, 11);
267 |         printf("[4] . Enter Your Address        : ");
268 |         scanf(" %[^\n]", rec.address);
269 |         gotoxy(36, 12);
270 |         printf("[5] . Enter Your E-mail         : ");
271 |         scanf(" %[^\n]", rec.email);
272 |         gotoxy(36, 13);
273 |         printf("[6] . Enter Your Citizenship No.: ");
274 |         scanf(" %[^\n]", rec.citiz);
275 |         gotoxy(36, 14);
276 |         printf("[7] . Enter Amount To Deposit   : $");
277 |         scanf(" %lf", &rec.blnc);
278 |         for (r = 0; r < 10; r++) {
279 |             rec.UserID[r] = rand() % 10;
280 |         }
281 | 	    //fwrite() = for writing binary data
282 |         //This helps to write contents in a structure variable in the file and stores it in the variable rec.
283 |         fwrite(&rec, sizeof(rec), 1, f);
284 |         gotoxy(38, 17);
285 |         printf("CUSTOMER ACCOUNT REGISTRATION SUCCESSFULL");
286 |         i++;
287 |         gotoxy(36, 19);
288 |         printf("Do You Want To Add Another Record ? (Y/N) : ");
289 |         scanf(" %c", &c);
290 |     } while (c == 'Y' || c == 'y');
291 |     fclose(f);
292 |     gotoxy(40, 22);
293 |     printf("Press any key to return back to main menu. ");
294 |     char z = getch();
295 |     if (z == 13) {
296 |         menu();
297 |     }
298 | }
299 | 
300 | //module to check whether the entered account is in the database or not
301 | int chkacc(int a) {
302 |     FILE *f;
303 |     f = fopen("record.bin", "rb");
304 |     //check whether we have reached end of file or not
305 |     while (!feof(f)) {
306 |         fread(&rec, sizeof(rec), 1, f);
307 | 
308 |         if (a == rec.account) {
309 |             fclose(f);
310 |             return 1;
311 |         }
312 |     }
313 |     fclose(f);
314 |     return 0;
315 | }
316 | 
317 | // module for editing details.
318 | void edit() {
319 |     FILE *x, *y;
320 |     int a, c;
321 | // colon i.e ":" acts as id for goto function
322 | re:
323 |     gotoxy(48, 4);
324 |     printf(" EDIT CUSTOMER ACCOUNT ");
325 |     gotoxy(43, 7);
326 |     printf("Enter Your Account Number To Edit : ");
327 |     scanf("%d", &a);
328 |     if (chkacc(a) == 1) {
329 |         x = fopen("record.bin", "rb");
330 |         y = fopen("new.bin", "wb");
331 |         while (fread(&rec, sizeof(rec), 1, x)) {
332 |             if (rec.account != a)
333 |                 fwrite(&rec, sizeof(rec), 1, y);
334 |             else if (rec.account == a) {
335 |                 gotoxy(52, 21);
336 |                 printf("Account Number Matched. ");
337 |                 gotoxy(51, 10);
338 |                 printf("Enter Your Details");
339 |                 gotoxy(31, 12);
340 |                 printf("[1] . Enter Your Name           : ");
341 |                 scanf(" %[^\n]", rec.name);
342 |                 gotoxy(31, 13);
343 |                 printf("[2] . Enter Your Account Number : ");
344 |                 scanf(" %d", &rec.account);
345 |                 gotoxy(31, 14);
346 |                 printf("[3] . Enter Your Phone Number   : ");
347 |                 scanf(" %[^\n]", rec.phone);
348 |                 gotoxy(31, 15);
349 |                 printf("[4] . Enter Your Address        : ");
350 |                 scanf(" %[^\n]", rec.address);
351 |                 gotoxy(31, 16);
352 |                 printf("[5] . Enter Your E-mail         : ");
353 |                 scanf(" %[^\n]", rec.email);
354 |                 gotoxy(31, 17);
355 |                 printf("[6] . Enter Your Citizenship No : ");
356 |                 scanf(" %[^\n]", rec.citiz);
357 |                 fwrite(&rec, sizeof(rec), 1, y);
358 |             }
359 |         }
360 |         fclose(x);
361 |         fclose(y);
362 |     }
363 |     if (chkacc(a) == 0) {
364 |         system("CLS");
365 |         gotoxy(52, 21);
366 |         printf("Account Doesn't Exist. ");
367 |         goto re;
368 |     }
369 |     remove("record.bin");
370 |     rename("new.bin", "record.bin");
371 |     gotoxy(45, 21);
372 |     printf("CUSTOMER ACCOUNT UPDATE SUCCESSFULL");
373 |     gotoxy(42, 24);
374 |     printf("Press any key to return back to main menu . ");
375 |     getch();
376 |     menu();
377 | }
378 | 
379 | //module for deleting account
380 | void del() {
381 |     FILE *x, *y;
382 |     int a, c;
383 | re:
384 |     gotoxy(48, 4);
385 |     printf(" DELETE CUSTOMER ACCOUNT ");
386 |     gotoxy(41, 9);
387 |     printf("Enter Your Account Number To Delete : ");
388 |     scanf("%d", &a);
389 |     if (chkacc(a) == 1) {
390 |         x = fopen("record.bin", "rb");
391 |         y = fopen("new.bin", "wb");
392 |         while (fread(&rec, sizeof(rec), 1, x)) {
393 |             if (rec.account != a)
394 |                 fwrite(&rec, sizeof(rec), 1, y);
395 |         }
396 |         fclose(x);
397 |         fclose(y);
398 |         x = fopen("record.bin", "wb");
399 |         y = fopen("new.bin", "rb");
400 |         while (fread(&rec, sizeof(rec), 1, y))
401 |             fwrite(&rec, sizeof(rec), 1, x);
402 |         fclose(x);
403 |         fclose(y);
404 |     } else if (chkacc(a) == 0) {
405 |         system("CLS");
406 |         gotoxy(51, 15);
407 |         printf("Account Doesn't Exist");
408 |         goto re;
409 |     }
410 |     gotoxy(44, 15);
411 |     printf("CUSTOMER ACCOUNT DELETED SUCCESSFULLY");
412 |     gotoxy(42, 18);
413 |     printf("Press any key to return back to main menu. ");
414 |     getch();
415 |     menu();
416 | }
417 | 
418 | //module for searching account ( 2 types by number and name )
419 | void search() {
420 |     system("cls");
421 |     int a;
422 |     gotoxy(55, 4);
423 |     printf(" SEARCH MENU ");
424 |     gotoxy(49, 10);
425 |     printf("[1] . Search By Account ");
426 |     gotoxy(49, 12);
427 |     printf("[2] . Search By Name ");
428 |     gotoxy(47, 17);
429 |     printf("Enter Your Choice [1-2] : ");
430 |     scanf("%d", &a);
431 |     system("cls");
432 |     if (a == 1) {
433 |         search_acc();
434 |     } else if (a == 2) {
435 |         search_name();
436 |     } else
437 |         menu();
438 | }
439 | 
440 | void search_acc() {
441 |     FILE *f;
442 |     int a, x;
443 | re:
444 |     gotoxy(48, 4);
445 |     printf(" SEARCH CUSTOMER ACCOUNT ");
446 |     gotoxy(43, 7);
447 |     printf("Enter Your Account Number To Search : ");
448 |     scanf("%d", &a);
449 |     if (chkacc(a) == 1) {
450 |         f = fopen("record.bin", "rb");
451 |         while (fread(&rec, sizeof(rec), 1, f)) {
452 |             if (rec.account == a) {
453 |                 gotoxy(52, 21);
454 |                 printf("Account Number Matched. User is Active.");
455 |                 gotoxy(45, 10);
456 |                 printf("Detail Information of %s", strupr(rec.name));
457 |                 gotoxy(37, 12);
458 |                 printf("[1] . Account Number : %d", rec.account);
459 |                 gotoxy(37, 13);
460 |                 printf("[2] . Name           : %s", rec.name);
461 |                 gotoxy(37, 14);
462 |                 printf("[3] . UserID         : ");
463 |                 for (r = 0; r < 10; r++) {
464 |                     printf("%d", rec.UserID[r]);
465 |                 }
466 |                 gotoxy(37, 15);
467 |                 printf("[4] . Phone Number   : %s", rec.phone);
468 |                 gotoxy(37, 16);
469 |                 printf("[5] . Address        : %s", rec.address);
470 |                 gotoxy(37, 17);
471 |                 printf("[6] . E-mail         : %s", rec.email);
472 |                 gotoxy(37, 18);
473 |                 printf("[7] . Citizenship No : %s", rec.citiz);
474 |                 gotoxy(37, 19);
475 |                 printf("[8] . Current Balance: $%.2lf", rec.blnc);
476 |                 break;
477 |             }
478 |         }
479 |         fclose(f);
480 |     }
481 |     if (chkacc(a) == 0) {
482 |         system("CLS");
483 |         gotoxy(52, 21);
484 |         printf("Account Doesn't Exist. User is Inactive. ");
485 |         goto re;
486 |     }
487 |     gotoxy(42, 24);
488 |     printf("Press [ENTER] to return back to main menu. ");
489 |     char z = getch();
490 |     if (z == 13)
491 |         menu();
492 |     else
493 |         search();
494 | }
495 | 
496 | void search_name() {
497 |     int i = 0, b, x;
498 |     char nam[30];
499 |     gotoxy(48, 4);
500 |     printf(" SEARCH CUSTOMER ACCOUNT ");
501 |     gotoxy(43, 7);
502 |     printf("Enter Your Full Name To Search : ");
503 |     scanf(" %[^\n]", nam);
504 |     FILE *f;
505 |     f = fopen("record.bin", "rb");
506 |     while (fread(&rec, sizeof(rec), 1, f)) {
507 |         b = 0;
508 |         strupr(rec.name);
509 |         strupr(nam);
510 |         if (strcmp(rec.name, nam) == 0) {
511 |             gotoxy(52, 21);
512 |             printf("Account Number Matched. User is Active.");
513 |             gotoxy(45, 10);
514 |             printf("Detail Information of %s", rec.name);
515 |             gotoxy(37, 12);
516 |             printf("[1] . Account Number : %d", rec.account);
517 |             gotoxy(37, 13);
518 |             printf("[2] . Name           : %s", rec.name);
519 |             gotoxy(37, 14);
520 |             printf("[3] . UserID         : ");
521 |             for (r = 0; r < 10; r++) {
522 |                 printf("%d", rec.UserID[r]);
523 |             }
524 |             gotoxy(37, 15);
525 |             printf("[4] . Phone Number   : %s", rec.phone);
526 |             gotoxy(37, 16);
527 |             printf("[5] . Address        : %s", rec.address);
528 |             gotoxy(37, 17);
529 |             printf("[6] . E-mail         : %s", rec.email);
530 |             gotoxy(37, 18);
531 |             printf("[7] . Citizenship No : %s", rec.citiz);
532 |             gotoxy(37, 19);
533 |             printf("[8] . Current Balance: $%.2lf", rec.blnc);
534 |             break;
535 |         } else
536 |             b = 1;
537 |     }
538 |     fclose(f);
539 |     if (b == 1) {
540 |         system("cls");
541 |         gotoxy(52, 21);
542 |         printf("Account Doesn't Exist. User is Inactive.");
543 |         search_name();
544 |     }
545 |     gotoxy(42, 24);
546 |     printf("Press [ENTER] to return back to main menu. ");
547 |     char z = getch();
548 |     if (z == 13)
549 |         menu();
550 |     else
551 |         search();
552 | }
553 | 
554 | // displays screen for the transaction options and takes the user choice .
555 | void transaction() {
556 |     system("CLS");
557 |     gotoxy(48, 4);
558 |     printf(" TRANSACTION MENU ");
559 |     gotoxy(49, 9);
560 |     printf("[1] . Balance Inquiry");
561 |     gotoxy(49, 10);
562 |     printf("[2] . Cash Deposit");
563 |     gotoxy(49, 11);
564 |     printf("[3] . Cash Withdrawal");
565 |     if (m == 1) {
566 |         gotoxy(49, 12);
567 |         printf("[4] . Main Menu");
568 |     } else {
569 |         gotoxy(49, 12);
570 |         printf("[4] . Exit");
571 |     }
572 |     gotoxy(45, 17);
573 |     printf("Please Enter Your Choice [1-4] : ");
574 |     int a;
575 |     scanf("%d", &a);
576 |     switch (a) {
577 |         case 1:
578 |             system("cls");
579 |             chkblnc();
580 |             break;
581 |         case 2:
582 |             system("cls");
583 |             deposit();
584 |             break;
585 |         case 3:
586 |             system("cls");
587 |             withdrawl();
588 |             break;
589 |         case 4:
590 |             if (m == 1)
591 |                 menu();
592 |             else
593 |                 menuexit();
594 |             break;
595 |         default:
596 |             transaction();
597 |     }
598 | }
599 | 
600 | // module for checking account balance and displaying it
601 | void chkblnc() {
602 |     FILE *f;
603 |     int a;
604 |     gotoxy(48, 4);
605 |     printf(" BALANCE INQUIRY ");
606 |     gotoxy(47, 12);
607 |     printf("Enter Your Account Number : ");
608 |     scanf("%d", &a);
609 |     if (chkacc(a) == 1) {
610 |         f = fopen("record.bin", "rb");
611 |         while (fread(&rec, sizeof(rec), 1, f)) {
612 |             if (rec.account == a) {
613 |                 gotoxy(50, 15);
614 |                 printf("Your Balance is : $%.2lf", rec.blnc);
615 |             }
616 |         }
617 |         fclose(f);
618 |     }
619 |     if (chkacc(a) == 0) {
620 |         system("cls");
621 |         gotoxy(52, 15);
622 |         printf("Account Doesn't Exist.");
623 |         chkblnc();
624 |     }
625 |     gotoxy(46, 21);
626 |     printf("Press any key to return back to main menu. ");
627 |     getch();
628 |     transaction();
629 | }
630 | 
631 | // module for adding amount to a account
632 | void deposit() {
633 |     int a;
634 |     double b;
635 |     FILE *x, *y;
636 |     gotoxy(54, 4);
637 |     printf(" CASH DEPOSIT ");
638 |     gotoxy(47, 10);
639 |     printf("Enter Your Account Number : ");
640 |     scanf("%d", &a);
641 |     if (chkacc(a) == 1) {
642 |         x = fopen("record.bin", "rb");
643 |         y = fopen("new.bin", "wb");
644 |         while (fread(&rec, sizeof(rec), 1, x)) {
645 |             if (rec.account != a)
646 |                 fwrite(&rec, sizeof(rec), 1, y);
647 |             else if (rec.account == a) {
648 |                 rec.name;
649 |                 rec.account;
650 |                 rec.phone;
651 |                 rec.address;
652 |                 rec.email;
653 |                 rec.citiz;
654 |                 gotoxy(45, 13);
655 |                 printf("Enter The Amount To Deposit : $ ");
656 |                 scanf("%lf", &b);
657 |                 rec.blnc += b;
658 |                 fwrite(&rec, sizeof(rec), 1, y);
659 |             }
660 |         }
661 |         fclose(x);
662 |         fclose(y);
663 |         x = fopen("record.bin", "wb");
664 |         y = fopen("new.bin", "rb");
665 |         while (fread(&rec, sizeof(rec), 1, y))
666 |             fwrite(&rec, sizeof(rec), 1, x);
667 |         fclose(x);
668 |         fclose(y);
669 |     }
670 |     if (chkacc(a) == 0) {
671 |         system("CLS");
672 |         gotoxy(52, 21);
673 |         printf("Account Doesn't Exist. ");
674 |         gotoxy(41, 22);
675 |         deposit();
676 |     }
677 |     gotoxy(52, 21);
678 |     printf("CASH DEPOSIT SUCCESSFULL");
679 |     gotoxy(50, 24);
680 |     printf("Press any key to return back...");
681 |     getch();
682 |     transaction();
683 | }
684 | 
685 | // module to withdraw amount from account
686 | void withdrawl() {
687 |     FILE *x, *y;
688 |     int a;
689 |     double b, z;
690 |     gotoxy(54, 4);
691 |     printf(" CASH WITHDRAWAL ");
692 |     gotoxy(45, 10);
693 |     printf("Enter Your Account Number : ");
694 |     scanf("%d", &a);
695 |     if (chkacc(a) == 1) {
696 |         x = fopen("record.bin", "rb");
697 |         y = fopen("new.bin", "wb");
698 |         gotoxy(42, 13);
699 |         printf("Enter The Amount To Withdraw : $ ");
700 |         scanf("%lf", &b);
701 |         while (fread(&rec, sizeof(rec), 1, x)) {
702 |             if (rec.account != a)
703 |                 fwrite(&rec, sizeof(rec), 1, y);
704 |             else if (rec.account == a) {
705 |                 rec.name;
706 |                 rec.account;
707 |                 rec.phone;
708 |                 rec.address;
709 |                 rec.email;
710 |                 rec.citiz;
711 |                 z = rec.blnc;
712 |                 if (b <= rec.blnc) {
713 |                     rec.blnc -= b;
714 |                     gotoxy(44, 21);
715 |                     printf("    CASH WITHDRAWAL SUCCESSFULL     ");
716 |                 }
717 |                 fwrite(&rec, sizeof(rec), 1, y);
718 |             }
719 |         }
720 |         fclose(x);
721 |         fclose(y);
722 |         remove("record.bin");
723 |         rename("new.bin", "record.bin");
724 |         if (z < b) {
725 |             system("CLS");
726 |             gotoxy(48, 21);
727 |             printf("Current Balance is $%.2lf", z);
728 |             gotoxy(42, 24);
729 |             printf("Entered amount exceeds current balance");
730 |             withdrawl();
731 |         }
732 |     }
733 |     if (chkacc(a) == 0) {
734 |         system("CLS");
735 |         gotoxy(50, 21);
736 |         printf("Account Doesn't Exist.");
737 |         gotoxy(39, 22);
738 |         withdrawl();
739 |     }
740 |     gotoxy(42, 24);
741 |     printf("     Press Any Key To Continue ....   ");
742 |     getch();
743 |     transaction();
744 | }
745 | 
746 | //module for logging out of the program.
747 | void menuexit() {
748 |     system("cls");
749 |     gotoxy(48, 10);
750 |     printf("!!! THANK YOU !!!");
751 |     gotoxy(50, 12);
752 |     printf("USER :: %s", id);
753 |     getch();
754 |     gotoxy(0, 26);
755 |     exit(0);
756 | }
757 | 
758 | void about() {
759 |     gotoxy(48,10);
760 |     printf("!!!ABOUT US!!!");
761 |     gotoxy(32,12);
762 |     printf("This project has been created by Aman Khadka.");
763 |     gotoxy(10,13);
764 |     printf("It is a Simple Bank Management System Project for my 1st Semester based on C programming language.");
765 |     gotoxy(40, 22);
766 |     printf("Press any key to return back to main menu. ");
767 |     char z = getch();
768 |     if (z == 13) {
769 |         menu();
770 |     }
771 | }
772 | 


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