A Simple C program to illustrate how a small bank program works

For some time I was working with my Dev C/ C++ compiler to make a C program that works like a small Bank Application. My affection with C language resulted in writing a small C program that shows how a Bank application can be made.
I know in many schools here in India mainly CBSE/ ICSE Syllabus, if you have Computer as a subject in class XI & XII you have to make projects in C++ language. Those Projects helps improving your understanding & sharpen you coding skills. Though this program is entirely written in C programming language which is not taught in class XI & XII, but still students can learn this language as C is the mother of all the modern programming languages (if you love coding as I do).

So now let's get right into the source code of the program.

/*  PROGRAM RUN & COMPILED ON DEV-C++ 5.11 COMPILER   */

#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<string.h>
#include<time.h>
#include"bank.h" //function prototypes, Structure declarations declared on this header file.
void main()
{
int ch,choice,i,j;
char code[10];
FILE *fp,*fp1;
fp=fopen("account.dat","rb+");
fp1=fopen("register.dat","rb+");
if(fp==NULL)
{ fp=fopen("account.dat","wb+");
  if(fp==NULL)
    {   printf("\nError opening file !!!");
  exit(0);
}
    }
    if(fp1==NULL)
{ fp1=fopen("register.dat","wb+");
  if(fp1==NULL)
    {   printf("\nError opening file !!!");
  exit(0);
}
}
printf("\n");
}
FMENU: //Goto label for FMENU
printf("\n\n\n\n\n\t\t\t[1] ADMIN LOGIN/ SIGN-UP");
printf("\t\t[2] USER LOGIN/ SIGN-UP");
printf("\t\t[3]EXIT MENU");
printf("\n\n\nPlease enter your choice : ");
scanf("%d",&choice);
switch(choice)
{
case 1:
admin(fp1,"admin");
strcpy(code,"admin");
break;
case 2:
user(fp,"user");
strcpy(code,"user");
break;
case 3:
goto EXIT;
break;
default:
system("cls");
printf("\nPlease enter a valid option.");
goto FMENU;
}
do{
    if(strcmp(code,"admin")==0){
 do{
    system("cls");                                              // For clear screen, or you can use clrscr();
printf("\n\n\t******************************************************************************************\n");
printf("\n\t\t\t\t\t BANK ACCOUNT MENU PROGRAM \t\t\t\t\n");
printf("\n\t******************************************************************************************\n");
beg: //Goto label for beg
   printf("\n\n\n\n\t\t\t\t[1] - INSERT A NEW RECORD.");
printf("\n\t\t\t\t[2] - CHECK ACCOUNT.");
printf("\n\t\t\t\t[3] - DELETE RECORD.");
printf("\n\t\t\t\t[4] - LIST ALL RECORDS.");
printf("\n\t\t\t\t[5] - MODIFY RECORD.");
printf("\n\t\t\t\t[6] - LOAN OPERATIONS.");
printf("\n\t\t\t\t[7] - ABOUT PROGRAM.");
printf("\n\t\t\t\t[8] - EXIT MENU PROGRAM.\n\n");
printf("\n\n\tEnter your choice : ");
scanf("%d",&ch);
switch(ch)
{
case 1:
insert(fp,"user");
break;
case 2:
check(fp);
break;
case 3:
del(fp);
break;
case 4:
list(fp);
break;
case 5:
modify(fp);
break;
case 6:
loan(fp);
break;
case 7:
about();
break;
case 8:
{ fclose(fp);
 fclose(fp1); goto EXIT;
   break;    }
default:
system("cls");
printf("\nEnter a valid option between (1 or 8): \n\n");
goto beg;
        }
    }while(ch>=1 && ch<=7);
}
else {
do
{
system("cls");                                              // For clear screen, or you can use clrscr();
printf("\n\n\t******************************************************************************************\n");
printf("\n\t\t\t\t\t BANK ACCOUNT MENU PROGRAM \t\t\t\t\n");
printf("\n\t******************************************************************************************\n");
beg1:  // Goto label for beg1
    printf("\n\n\n\n\t\t\t\t[1] - CHECK ACCOUNT.");
printf("\n\t\t\t\t[2] - DELETE RECORD.");
printf("\n\t\t\t\t[3] - MODIFY RECORD.");
printf("\n\t\t\t\t[4] - WITHDRAW MONEY.");
printf("\n\t\t\t\t[5] - CREDIT MONEY.");
printf("\n\t\t\t\t[6] - VIEW LAST TRANSACTION.");
printf("\n\t\t\t\t[7] - LOAN OPERATIONS.");
printf("\n\t\t\t\t[8] - ABOUT PROGRAM.");
printf("\n\t\t\t\t[9] - EXIT MENU PROGRAM.\n\n");
printf("\n\n\tEnter your choice : ");
scanf("%d",&ch);
switch(ch)
{
case 1:
check(fp);
break;
case 2:
del(fp);
break;
case 3:
modify(fp);
break;
case 4:
withdraw(fp);
break;
case 5:
credit(fp);
break;
case 6:
trans(fp);
break;
case 7:
loan(fp);
break;
case 8:
   about();
   break;
case 9:
{ fclose(fp);
 fclose(fp1); goto EXIT;
   break;    }
default:
system("cls");
printf("\nEnter a valid option between (1 or 9): \n\n");
goto beg1;
        }
    }while(ch>=1 && ch<=8);
}
}while(-1);
EXIT:
system("cls");
printf("\n\n\n\n\t***************************************************************************************************************\n\n\n");
printf("\n\n\t\t\t\t END OF PROGRAM, THANKS FOR USING OUR BANK APPLICATION ... \t\t\t\t\n\n\n");
printf("\n\n\t***************************************************************************************************************\n");
}
void admin(FILE *fp1,const char *code)
{
 int choice;
 system("cls");
 printf("\n----------------------------------------------------------------------------------------------------------------------\n");
 printf("\n\n\t\t\t\t\tWELCOME TO ADMINISTRATOR ZONE ");
 printf("\n----------------------------------------------------------------------------------------------------------------------\n");
 beg:
 printf("\n\n\t\t\t\t[1] - LOGIN");
 printf("\n\t\t\t\t[2] - SIGNUP");
 printf("\n\t\t\t\t[3] - EXIT MENU");
 printf("\n\t\t\t\tEnter your choice : ");
 scanf("%d",&choice);
 switch(choice)
 {
  case 1:
  login(fp1,"admin");
  break;
  case 2:
  rewind(fp1);
while(fread(&regst,sizeof(regst),1,fp1)==1){
if(strcmp(code,regst.code)==0){
system("cls");
printf("\n\n\t\tYou can\'t signup as administrator because there is already an admin.");
goto beg;
}
}
reg(fp1,"admin");
  break;
  case 3:
  exit(0);
  break;
  default:
  system("cls");
  printf("\nEnter a valid option.");
  goto beg;
 }
 system("cls");
}
void user(FILE *fp1,const char *code)
{
 int choice;
 system("cls");
 printf("\n#####################################################################################################################\n");
 printf("\n\n\t\t\t\t\tWELCOME TO USER ZONE");
 printf("\n#####################################################################################################################\n");
 beg:
 printf("\n\n\t\t\t\t[1] - LOGIN");
 printf("\n\t\t\t\t[2] - SIGNUP");
 printf("\n\t\t\t\t[3] - EXIT MENU");
 printf("\n\t\t\t\tEnter your choice : ");
 scanf("%d",&choice);
 switch(choice)
 {
  case 1:
  login(fp1,"user");
  break;
  case 2:
  reg(fp1,"user");
  break;
  case 3:
  exit(0);
  break;
  default:
  system("cls");
  printf("\nEnter a valid option.");
  goto beg;
 }
 system("cls");
}
void reg(FILE *fp1,const char *code)
{
    int z=0; char name[50],save_opt;
    fseek(fp1,0,2);
    system("cls");
    printf("\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
    printf("\n\t\t\t\t\t\tWELCOME TO REGISTERISATION ZONE");
    printf("\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\n\n\tEnter your username : ");
    scanf("%s",name);
    if(search(fp1,name)==0){
printf("\n\n\tUsername already exists, please select other name.");
getch();
reg(fp1,code);
}
    else{
strcpy(regst.name,name); }
printf("\n\tEnter person address : ");
scanf("%s",regst.add);
printf("\n\tEnter person email : ");
scanf("%s",regst.mail);
printf("\n\tEnter person phone number : ");
scanf("%lld",&regst.phno);
printf("\n\tEnter person designation : ");
scanf("%s",regst.desg);
printf("\n\tEnter person password : ");
    while((c=getch())!=13)
        {
           regst.pswd[z++]=c;
           printf("%c",'*');
        } regst.pswd[z]='\0';
    printf("\n\tYour current balance is  0 Rs.");
    regst.bal=0;
    regst.amt=0;
    strcpy(regst.code,code);
    strcpy(regst.tcode,"\0");
    strcpy(regst.date,"\0");
    strcpy(regst.l_status,"UNACTIVE");
    regst.l_amt=0;
    printf("\n\tDo you want to save data to the file, Press Y to save Or anykey to cancel...");
    save_opt= getch();
    if(save_opt =='Y' || save_opt=='y')
{
fwrite(&regst,sizeof(regst),1,fp1);
printf("\n\n\t\tYou are successfully registered");
    printf("\n\n\t\tPress enter to try login your account.\n\n\t\t");
login(fp1,code);
}
else{
printf("\n\nRedirecting you to registration zone >>> ");
reg(fp1,code);
}
printf("\n\t\t\tPress anykey to continue...");
getch();
system("cls");
}
void login(FILE *fp1,const char *code)
{
    char name[50],pass[50],opt;
    int z=0,flag=1;
    system("cls");
    printf("\n***********************************************************************************************************************\n");
    printf("\n\t\t\t\t\t\tWELCOME TO LOG IN ZONE");
    printf("\n***********************************************************************************************************************\n");
    printf("\n\t\t\t\t\t\t\t\t\t\tYou\'re logging as %s.",code);
    printf("\n\n\t\t\t\tEnter your username : ");
    scanf("%s",name);
    if(search(fp1,name)==0){
    rewind(fp1);
while(fread(&regst,sizeof(regst),1,fp1)==1){
if(strcmp(code,regst.code)==0){
flag=0;
break;
}
}
if(flag==1){
printf("\n\t\tName not found in the file...");
goto VC;
}
printf("\n\n\t\t\t\tEnter your password : ");
    while((c=getch())!=13)
    {
        pass[z++]=c;
        printf("%c",'*');
    } pass[z]='\0';
}
if(serpswd(fp1,name,pass)==0){
    printf("\n\n\t\t\tYou\'ve successfully logged in...");
    }
else if(search(fp1,name)==1 || serpswd(fp1,name,pass)==1){
VC:
printf("\n\n\n\t\t\tUnsuccessful login attempt.");
printf("\n\n\t\t\tPress R to register Or anykey to retry login again...");
opt=getch();
if(opt=='r' || opt=='R'){
reg(fp1,code);
}
else{
login(fp1,code);
}
}
    printf("\n\t\t\tPress anykey to continue ...");
getch();
    system("cls");
}
void insert(FILE *fp,const char *code)
{
int z=0;
char save_opt,name[50];
fseek(fp,0,2);
system("cls");
printf("\n\n\n\n\tEnter person name : ");
scanf("%s",name);
if(search(fp,name)==0){
printf("\n\n\t\tUsername already exists, please select other name.");
getch();
insert(fp,code);
}
strcpy(regst.name,name);
printf("\n\tEnter person address : ");
scanf("%s",regst.add);
printf("\n\tEnter person email : ");
scanf("%s",regst.mail);
printf("\n\tEnter person phone number : ");
scanf("%lld",&regst.phno);
printf("\n\tEnter person designation : ");
scanf("%s",regst.desg);
printf("\n\tEnter person password : ");
    while((c=getch())!=13)
        {
           regst.pswd[z++]=c;
           printf("%c",'*');
        } regst.pswd[z]='\0';
    printf("\n\tYour current balance is  0 Rs.");
    regst.bal=0;
    regst.amt=0;
    strcpy(regst.tcode,"\0");
    strcpy(regst.code,code);
    strcpy(regst.date,"\0");
    strcpy(regst.l_status,"UNACTIVE");
    regst.l_amt=0;
printf("\n\n\tDo you want to save data to the file, Press Y to confirm or anykey to cancel...");
    save_opt=getch();
    if(save_opt=='Y' || save_opt=='y'){
fwrite(&regst,sizeof(regst),1,fp);
printf("\n\n\tData saved to the file...");
}
else
printf("\n\n\tData not saved to the file!!!");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void check(FILE *fp)
{
char name[50],psswd[50];
int z=0; char c;
system("cls");
printf("\n\n\n\tEnter your name : ");
scanf("%s",name);
if(search(fp,name)==0)
{
 printf("\n\tEnter your password : ");
 while((c=getch())!=13)
    {
           psswd[z++]=c;
           printf("%c",'*');
    } psswd[z]='\0';
if(serpswd(fp,name,psswd)==0)
{
printf("\n\n\tPerson name : %s.",regst.name);
printf("\n\tPerson address : %s.",regst.add);
printf("\n\tPerson mail : %s.",regst.mail);
printf("\n\tPerson phone number : %lld.",regst.phno);
printf("\n\tPerson designation : %s.",regst.desg);
printf("\n\tPerson balance : %lld Rs.",regst.bal+regst.l_amt);
printf("\n\tLoan status : %s",regst.l_status);
if(strcmp(regst.l_status,"ACTIVE")==0)
printf("\n\tLoan Amount : %lld",regst.l_amt);
}
else
{
printf("\n\n\tIncorrect Password for user....");
}
}
else
printf("\n\t\tName not found in the file...");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void del(FILE *fp)
{
FILE *fptmp;
int z=0;
char name[50],psswd[50];
system("cls");
printf("\n\n\n\tEnter the name of the person whose record is to be deleted from database : ");
scanf("%s",name);
if(search(fp,name)==0){
printf("\n\tEnter password of the person : ");
while((c=getch())!=13)
{
        psswd[z++]=c;
        printf("%c",'*');
} psswd[z]='\0';
if(serpswd(fp,name,psswd)==0){
fptmp=fopen("tempregst.dat","wb");
rewind(fp);
while(fread(&regst,sizeof(regst),1,fp)==1)
 {
if(strcmp(name,regst.name)!=0)
fwrite(&regst,sizeof(regst),1,fptmp);
 }
fclose(fp);
fclose(fptmp);
remove("account.dat");
rename("tempregst.dat","account.dat");
printf("\nRecord deleted...\n\n");
fp=fopen("account.dat","rb+");
}
else
printf("\n\n\tIncorrect Password for the user...");
}
else
printf("\n\n\tName not found in the file....");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
int search(FILE *fp1,const char *name)
{
unsigned flag=1;
rewind(fp1);
while(fread(&regst,sizeof(regst),1,fp1)==1)
{  if(strcmp(name,regst.name)==0)
{
flag=0;
   break;
}
}
return flag;
}
int serpswd(FILE *fp,const char *name,const char *pswd)
{
unsigned flag=1;
rewind(fp);
while(fread(&regst,sizeof(regst),1,fp)==1)
{  if(strcmp(pswd,regst.pswd)==0 && strcmp(name,regst.name)==0)
{
flag=0;
   break;
}
}
return flag;
}
void list(FILE *fp)
{   int i=0;
rewind(fp);
system("cls");
printf("\n\n\n\n\tS.No\tName\t\tBalance\t\tEmail\t\t\tPhone No.\n\n");
while(fread(&regst,sizeof(regst),1,fp)==1)
{
   printf("\n\t%d.",i+1);
  printf("\t%s\t",regst.name);
printf("\tRs %lld",regst.bal);
printf("\t%s",regst.mail);
printf("\t%lld",regst.phno);
printf("\t%s\n",regst.l_status);
i++;
}
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void modify(FILE *fp)
{
char name[50],psswd[50],cg;
int z=0;
long size=sizeof(regst);
system("cls");
printf("\n\n\n\tEnter the name of the person whose record is to be modified : ");
scanf("%s",name);
if(search(fp,name)==0)
{
printf("\n\tEnter your password : ");
        while((c=getch())!=13)
        {
           psswd[z++]=c;
           printf("%c",'*');
        } psswd[z]='\0';
        if(serpswd(fp,name,psswd)==0)
    {
printf("\n\n\n\t\tEnter new data -->>>\n");
printf("\t\tEnter - to not change the values ... \n\n");      //When values are not to be modified, User can enter '-' to make no changes in the given field.
    printf("\nEnter person name : ");
    if((cg=getch())!=45){
scanf("%s",regst.name);
   }
printf("\nEnter person address : ");
if((cg=getch())!=45)
{  scanf("%s",regst.add);
   }
printf("\nEnter person email : ");
if((cg=getch())!=45)
   { scanf("%s",regst.mail);
}
printf("\nEnter person phone number : ");
if((cg=getch())!=45)
{   scanf("%lld",&regst.phno);
}
printf("\nEnter person designation : ");
if((cg=getch())!=45)
{
scanf("%s",regst.desg);
}
printf("\nEnter person current balance : ");
if((cg=getch())!=45)
{   scanf("%lld",&regst.bal);
}
printf("\nEnter your new password : ");
if((cg=getch())!=45)
{
scanf("%s",regst.pswd);
       }
            fseek(fp,-size,1);
   fwrite(&regst,sizeof(regst),1,fp);
   printf("\n\n\t\tRecord modified sucessfully ...\n\n");
}
else
printf("\n\n\tIncorrect Password for the user...");
}
else
printf("\n\n\tName not found in the file...");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void withdraw(FILE *fp)
{
int z=0;
long size=sizeof(regst);
char name[50],psswd[50];
system("cls");
printf("\n\n\n\tEnter your name : ");
scanf("%s",name);
if(search(fp,name)==0)
{
 printf("\n\tEnter your password : ");
      while((c=getch())!=13)
        {
           psswd[z++]=c;
           printf("%c",'*');
        }psswd[z]='\0';
    if(serpswd(fp,name,psswd)==0)
    {
printf("\n\n\n\tEnter the amount you want to withdraw : ");
scanf("%lld",&regst.amt);
if(regst.amt>regst.bal)
{
 printf("\n\n\tInsufficent Balance to Withdraw!!!");
}
else
{   time_t t;
time(&t);
strcpy(regst.date,ctime(&t));
strcpy(regst.tcode,"DEBIT");
regst.bal-=regst.amt;
fseek(fp,-size,1);
fwrite(&regst,sizeof(regst),1,fp);
   printf("\n\n\tAmount successfully withdrawn....\n\n");
}
}
else
printf("\n\n\tIncorrect Password for the user...");
    }
else
printf("\n\n\tName not found in the file...");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void credit(FILE *fp)
{
long long amt; int z=0;
long size=sizeof(regst);
system("cls");
char name[50],psswd[50];
printf("\n\n\n\tEnter your name : ");
scanf("%s",name);
if(search(fp,name)==0)
{
 printf("\n\tEnter your password : ");
      while((c=getch())!=13)
        {
           psswd[z++]=c;
           printf("%c",'*');
        } psswd[z]='\0';
    if(serpswd(fp,name,psswd)==0)
    {
printf("\n\n\n\tEnter the amount you want to save to : ");
scanf("%lld",&regst.amt);
time_t t;
time(&t);
strcpy(regst.date,ctime(&t));
strcpy(regst.tcode,"CREDIT");
regst.bal+=regst.amt;
fseek(fp,-size,1);
fwrite(&regst,sizeof(regst),1,fp);
   printf("\n\n\tAmount successfully credited....\n\n");
}
else
printf("\n\n\tIncorrect Password for the user...");
}
else
printf("\n\n\tName not found in the file...");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void trans(FILE *fp)
{
    system("cls");
int i=1,z=0; char name[50],psswd[50];
rewind(fp);
printf("\n\n\n\n\t\tEnter your name : ");
scanf("%s",name);
if(search(fp,name)==0)
{
printf("\n\t\tEnter your password : ");
while((c=getch())!=13)
        {
           psswd[z++]=c;
           printf("%c",'*');
        }  psswd[z]='\0';
        if(serpswd(fp,name,psswd)==0)
        {
rewind(fp);
        while(fread(&regst,sizeof(regst),1,fp)==1)
        {
        if(strcmp(regst.name,name)==0)
{
         printf("\n\n\tName : %s",regst.name);
         printf("\tDate : %s ",regst.date);
         printf("\t%s",regst.tcode);
         printf("\t%lld",regst.amt);
         printf("\tCurrent Balance : %lld\n",regst.bal+regst.l_amt);
}
}
}
else
printf("\n\n\tIncorrect Password for the user...");
    }
    else
    printf("\n\n\tName not found in the file...");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}
void loan(FILE *fp)
{
char z,name[50],psswd[50];
long long amt;
long size=sizeof(regst);
int op;
system("cls");
printf("\n\n\tEnter the name : ");
scanf("%s",name);
if(search(fp,name)==0)
{
printf("\n\tEnter the password : ");
while((c=getch())!=13)
        {
           psswd[z++]=c;
           printf("%c",'*');
        }  psswd[z]='\0';
        if(serpswd(fp,name,psswd)==0)
        {
    system("cls");
         printf("\n\n\t\t[1] Apply for Loan.");
         printf("\n\t\t[2] Clear Previous Loan.");
         printf("\n\n\t\tEnter your choice : ");
         scanf("%d",&op);
         switch(op)
         {
          case 1:
{
if(strcmp(regst.l_status,"ACTIVE")==0)
            {
        printf("\n\n\t\tPlease clear your previous loan first.\n\n");
   }
   else
{
printf("\n\n\t\tEnter the amount of loan you wish to take : ");
scanf("%lld",&amt);
strcpy(regst.l_status,"ACTIVE");
regst.l_amt = amt;
fseek(fp,-size,1);
fwrite(&regst,sizeof(regst),1,fp);
}
}
break;
case 2:
{
if(strcmp(regst.l_status,"ACTIVE")==0)
          {
        printf("\n\t\tYour loan amount was %lld.",regst.l_amt);
        if(regst.bal<regst.l_amt)
        {
        printf("\n\t\tYou don\'t have sufficient balance to clear your due.\n");
}
else
{
regst.bal = regst.bal-regst.l_amt;
printf("\n\t\tThe loan amount has been recovered from your account.\n");
strcpy(regst.l_status,"UNACTIVE");
regst.l_amt=0;
fseek(fp,-size,1);
fwrite(&regst,sizeof(regst),1,fp);
}
}
else
{
printf("\n\n\t\tYou have no loan due pending.");
}
}
break;
default:
printf("\n\n\t\tInvalid choice...");
}
}
}
printf("\n\n\t\tPress anykey to continue...");
getch();
system("cls");
}
void about(void)
{
system("cls");
printf("\n\n\n\n\n\t\t\t\tPROGRAM TO DISPLAY HOW A TYPICAL BANK PROGRAM WORKS. ");
printf("\n\t\t\t\tPROGRAM DESIGNED & DEVELOPED BY AMIT SINGH...");
printf("\n\t\t\t\tSTUDENT OF SGRRITS, PATEL NAGAR, DEHRADUN, U.K, INDIA .");
printf("\n\t\t\t\tBCA Ist SEMESTER, AND A BEGINNER TO C/C++ LANGUAGE.");
printf("\n\t\t\t\tFOR ANY HELP VISIT AMIT\'S BLOG : http://www.asmitblog.blogspot.com/  ");
printf("\n\t\t\t\t\tOR KINDLY MAIL HIM AT : asamitdbz@gmail.com  ");
printf("\n\n\n\t\t\t\t\a***************************************************************\t\t\t\n\n\n");
printf("\n\n\tPress anykey to continue...");
getch();
system("cls");
}



This was the source code for the bank application. Below is the code for include file (#include"bank.h").

// bank.h -- structure templates and function prototypes
// structure templates
#ifndef BANK_H_
#define BANK_H_
struct reg{
char name[50],pswd[50];
char add[100],mail[50],desg[50];
long long phno,bal,amt,l_amt;
char code[10],tcode[7],date[100];
char l_status[10];
}regst;

void admin(FILE *fp1,const char *code); // function for admin (admin)
void user(FILE *fp1,const char *code); // function for user (user)
void reg(FILE *fp1,const char *code);                               // registration for new user
void login(FILE *fp1,const char *code);       // login for existing user
void insert(FILE *fp,const char *code); // function for inserting new record (admin)
void check(FILE *fp); // function for checking the reord of a user (user + admin)
void del(FILE *fp);  // function for deleting the record (user + admin)
int search(FILE *fp1,const char *name);       // serching name (user)
int serpswd(FILE *fp1,const char *name,const char *pswd); // searching password (user)
void list(FILE *fp);                               // lists all the user details (admin)
void modify(FILE *fp); // function for modifying a user record (user + admin)
void withdraw(FILE *fp); // function for withdrawing money (user)
void credit(FILE *fp);              // function for crediting money (user)
void trans(FILE *fp); // function to display last transaction of the account
void about(void);
void loan(FILE *fp); // function for providing loan

char c;

#endif

Save this file as bank.h.

Note : If your want this application to work in Turbo C++ , you may have to make some changes in the app. Such as if you want to clear console input, in Turbo C++ compiler you used clrscr(); defined in conio.h library file, but in Dev compiler you have to use system("cls");

Also copy the source code as it is. If you find any problem please comment below.

Comments

Popular posts from this blog

Top Ten Web Hosting providers

How Social media can help bloggers get traffic

How to design a contact form for FREE (No Coding Skills needed)