Secured Bank Management System with C Language

Last updated May 05, 2022


A bank management system(BMS) is a software that bank employees can use, this program is written using C language and File handling in C. BMS help bank employees keep track of the accounts and their deatils including transction history.
It is used by Banks to manage the DataBase using computerized system. To run this program you have to put the correct password which is "codewithc" .

 

Difficulties in BMS

  1. To check if bank account is already been created
  2. Manual system
  3. Bank has to perform small tasks every single time
  4. Updating is a tedious work
  5. Addition and editing records is complex
  6. Very hard to maintain bigger data

 

Features

  1. Add or Remove accounts
  2. Withdraw Money
  3. Deposit Money
  4. Show Details of an account
  5. Speed Improvement
  6. Time Saving
  7. Better error handling
  8. Show Details of all accounts
  9. Modify Accounts

 

Approach

  1. As this is a banking system it should be well protected, so there is a login facility before getting into the system, only authorized personals can access the software.
  2. Bank Person will create an account for the customer using acc() function, which requires Name, Email, Number, Address, etc.
  3. Using deposit() function they will add money as per the customers requirement.
  4. This data is stored in DataBase now, Customer now can withdraw or deposit money in the account.
  5. Bank Person can use this software to get details of any particular account or list of all accounts in the DataBase.

 

Functions Used

Let’s discuss the approach in detail, covering all the functions and their explanation in detail-

  1. acc() - It contains all the features associated to account, for example: Creating or Removing an account from DataBase.
  2. withdraw() - This function can help deduct money and withdraw money from an account.
  3. deposit() - This function will help in money deposit in an account.
  4. show() - Show helps to show one particular account in the database.
  5. lists() - Lists is a function which can help listing all the accounts in the DataBase.
  6. modify() - Modify help to modify account details, for example: number, email, etc.
  7. login() - Login Function is used here because this system must be secure as it involves money, so only authorized person can access.
  8. credits() - This function includes credits to this Project.

 

System Requirements

  1. Processor - Intel Core Pentium or above
  2. Operating System - Windows vista or above
  3. Memory - 1Gb Ram or more
  4. Hard Disk Space - According to the size of DataBase.

 

Bank Management System project C

 

 

Bank Management System project C project

 

Bank Management System project C Language 3

 

Bank Management System project C language 4

 

#include<windows.h>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#define SIDETAB printf("\t\t\t\t\t");
#define CLS system("cls");

void lists(void);
void close(void);
void acc(void);
void show(void);
void login(void);
void credits(void);
void loading(void);
void modify(void);
void withdraw(void);
void deposit(void);
void wait(void);
void waitlong(void);
void line(void);
void newline(void);
void solidline(void);
void newsolidline(void);
void hashline(void);

void newline()
{
    int i;
    printf("\n\n\n\n\n\t\t\t\t\t");
    for(i=1;i<=57;i++)
    {
        printf("=");
    }
    printf("\n\n");
}
void line()
{
    int i;
    printf("\n\t\t\t\t\t");
    for(i=1;i<=57;i++)
    {
        printf("=");
    }
    printf("\n\n");
}
void hashline()
{
    int i;
    printf("\t\t\t\t\t");
    for(i=1;i<=57;i++)
    {
        printf("#");
    }
    printf("\n");
}
void newsolidline()
{
    int i;
    printf("\n\n\n\n\n\t\t\t\t\t");
    for(i=1;i<=57;i++)
    {
        printf("%c",254);
    }
    printf("\n\n");
}
void solidline()
{
    int i;
    printf("\n\t\t\t\t\t");
    for(i=1;i<=57;i++)
    {
        printf("%c",254);
    }
    printf("\n\n");
}

typedef struct
{
  int a_number;
  char name[30];
  int m_no;
  char address[100];
  int balance;
  int a_chk;
}accounts;
accounts records;

FILE *ptr;

int loginflag=0;

int main()
{
    int op;
    loading();
    login();
    system("COLOR 0F");
    options:
    newsolidline();
    printf("\t\t\t\t\t\t        BANK MANAGEMENT SOFTWARE\n");
    solidline();
    printf("\t\t\t\t\t       | ENTER THE CHOICE FROM THE OPTIONS BELOW |\n\n");
    printf("\t\t\t\t\t1: Add or Remove account\n");
    printf("\t\t\t\t\t2: Withdraw\n");
    printf("\t\t\t\t\t3: Deposit\n");
    printf("\t\t\t\t\t4: Show details of an account\n");
    printf("\t\t\t\t\t5: Show details of all accounts\n");
    printf("\t\t\t\t\t6: Modify an account\n\n");
    hashline();
    printf("\t\t\t\t\t9: LOG OUT \n");
    printf("\t\t\t\t\t0: EXIT \n\n");
    printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
    scanf("%d",&op);
    switch(op)
    {
    case 1:     acc();
        break;
    case 2:     withdraw();
        break;
    case 3:     deposit();
        break;
    case 4:     show();
        break;
    case 5:     lists();
        break;
    case 6:     modify();
        break;
    case 9:
         {
                loginflag=0;
                login();
                system("color 0F");
                goto options;
         }
    case 0:     credits();
        break;
    default:
        {
        SIDETAB
        printf("ENTER A VALID OPTION !");
        wait();
        CLS
        goto options;
        }
    }
    return 0;
}

void show()
{
    recheck:
    ptr=fopen("records.txt","r");
    int given_no,flag;
    CLS
    system("COLOR 0F");
    newsolidline();
    printf("\t\t\t\t\t\t         ACCOUNT SEARCH WIZARD   \n");
    solidline();
    SIDETAB
    printf("ENTER ACCOUNT NUMBER : ");
    scanf("%d",&given_no);
    while(fscanf(ptr,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
    {
        if(given_no==records.a_number)
    {
    flag=1;
    printf("\n\t\t\t\t\tDETAILS OF ACCOUNT  : %d",records.a_number);
    printf("\n\t\t\t\t\t========================================================\n");
    SIDETAB
    printf("ACCOUNT NUMBER      : %d\n",records.a_number);
    SIDETAB
    printf("ACCOUNT HOLDER NAME : %s\n",records.name);
    SIDETAB
    printf("CONTACT NUMBER      : %d\n",records.m_no);
    SIDETAB
    printf("ADDRESS             : %s\n",records.address);
    SIDETAB
    printf("BALANCE             : %d\n",records.balance);
    printf("\t\t\t\t\t========================================================\n\n");
    fclose(ptr);
    SIDETAB
    printf("  CHOOSE THE OPTION NOW\n");
    SIDETAB
    printf("  1: MAIN MENU\n");
    SIDETAB
    printf("  2: SEARCH ANOTHER\n");
    SIDETAB
    printf("  0: EXIT\n\n");
    printf("\t\t\t\t\t  ENTER YOUR CHOICE : ");
    int x;
    scanf("%d",&x);
    if(x==1)
        { CLS
          main(); }
    else if(x==2)
        goto recheck;
    else
        credits();
    }
    else if(flag==0)
    {
        system("color C");
        line();
        SIDETAB
        printf("NO RECORD FOUND !!!!!!");
        fclose(ptr);
        credits();
    }
}
    system("color C");
    printf("\n");
    SIDETAB
    printf("\t\t NO RECORD FOUND !!!!!!");
    printf("\n\t\t\t\t\t========================================================\n\n");
    SIDETAB
    printf("  CHOOSE THE OPTION NOW\n");
    SIDETAB
    printf("  1: MAIN MENU\n");
    SIDETAB
    printf("  2: SEARCH ANOTHER\n");
    SIDETAB
    printf("  0: EXIT\n\n");
    printf("\t\t\t\t\t  ENTER YOUR CHOICE : ");
    int x;
    scanf("%d",&x);
    if(x==1)
        { CLS
          main(); }
    else if(x==2)
        goto recheck;
    else
        credits();
    }

void acc()
{
    int ac_choice;
    system("cls");
    newsolidline();
    printf("\t\t\t\t\tENTER THE CHOICE FROM THE OPTIONS BELOW AND PRESS ENTER \n");
    solidline();
    SIDETAB
    printf("1: ADD AN ACCOUNT\n");
    SIDETAB
    printf("2: REMOVE AN ACCOUNT\n");
    line();
    SIDETAB
    printf("0: EXIT\n");
    SIDETAB
    printf("9: MAIN MENU\n");
    printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
    scanf("%d",&ac_choice);


/* FOR NEW ACCOUNT */

            int op;
            acc_re:
            if(ac_choice==1)
    {
            ptr=fopen("records.txt","a+");
            CLS
            newline();
            if(ptr==NULL)
            {
                CLS
                system("color c");
                newline();
                SIDETAB
                printf("          DATABASE FILE NOT FOUND EXITING !!!!!\n");
                line();
                credits();
            }
            else
            printf("\t\t\t\t\t\tENTER THE DETAILS BELOW AND PRESS ENTER\n");
            line();
            SIDETAB
            printf("ENTER ACCOUNT NUMBER       : ");
            scanf("%d",&records.a_chk);
            while(fscanf(ptr,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
            {
            if(records.a_number==records.a_chk)
            {
                system("color 0C");
                SIDETAB
                printf("ACCOUNT NUMBER ALREADY EXISTS !  PLEASE WAIT !");
                wait();
                CLS
                newline();
                fclose(ptr);
                system("COLOR 0F");
                goto acc_re;
            }
            }
            getchar();
            SIDETAB
            printf("ENTER ACCOUNT HOLDER NAME  : ");
            gets(records.name);
            SIDETAB
            printf("ENTER MOBILE NUMBER        : ");
            scanf("%d",&records.m_no);
            SIDETAB
            getchar();
            printf("ENTER ADDRESS              : ");
            gets(records.address);
            SIDETAB
            printf("ENTER BALANCE DEPOSITED    : ");
            scanf("%d",&records.balance);
            fprintf(ptr,"%d %s %d %s %d\n",records.a_chk,records.name,records.m_no,records.address,records.balance);
            system("color a");
            printf("\n");
            printf("\n\t\t\t\t\t\t   ACCOUNT CREATED SUCCESSFULLY !!!!!!\n\n");
            fclose(ptr);
            SIDETAB
            printf("CHOOSE THE OPTION NOW\n");
            SIDETAB
            printf("1: MAIN MENU\n");
            SIDETAB
            printf("0: EXIT\n\n");

            printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
            scanf("%d",&op);
                if(op==1)
                {
                    fclose(ptr);
                    CLS;
                    main();
                }
                else if(op==0)
                {
                    credits();
                    fclose(ptr);
                }
        fclose(ptr);
    }


/*  REMOVING AN ACCOUNT  */

else if(ac_choice==2)

    {
        FILE *new_data,*old_data;
        int adeleted=0,delopt;
        redelete:
        adeleted=0;
        system("COLOR 0F");
        new_data=fopen("newdata.txt","w");
        old_data=fopen("records.txt","r");
        CLS
        newline();
                if(old_data==NULL)
                {
                        fclose(old_data);
                        fclose(new_data);
                        system("del newdata.txt");
                        system("color 0C");
                        CLS
                        newline();
                        SIDETAB
                        printf("          DATABASE FILE NOT FOUND EXITING !!!!!\n");
                        line();
                        wait();
                        credits();
                }
                else if (new_data==NULL)
                    {
                    fclose(old_data);
                    fclose(new_data);
                    system("del newdata.txt");
                    system("color 0C");
                    CLS
                    newline();
                    SIDETAB
                    printf("         NEW DATABASE FILE NOT MADE EXITING !!!!!\n");
                    line();
                    wait();
                    credits();
                }
        printf("\t\t\t\t\t\tENTER THE DETAILS BELOW AND PRESS ENTER\n");
        line();
        SIDETAB
        printf("ENTER ACCOUNT NUMBER       : ");
        scanf("%d",&records.a_chk);
        while(fscanf(old_data,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
            {
                        if(records.a_number!=records.a_chk)
                            {
                                fprintf(new_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                            }
                        else
                            {
                                adeleted=1;
                            }
            }

                fclose(old_data);
                fclose(new_data);
                system("del records.txt");
                system("ren newdata.txt records.txt");
                if(adeleted!=1)
                {
                        CLS
                        newline();
                        SIDETAB
                        system("color 0C");
                        printf("\t\t ACCOUNT NOT DELETED !!!!\n");
                        SIDETAB
                        printf("\t\t      TRY AGAIN\n");
                        printf("\n\n\t\t\t\t         YOU ENTERED A WRONG A/c No. OR THE A/c DOES NOT EXISTS");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: RETRY\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&delopt);
                            if(delopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(delopt==1)
                            {
                                    goto redelete;
                            }
                            else
                            {
                                credits();
                            }

                }
                else if(adeleted!=0)
                {
                        adeleted=0;
                        CLS
                        newline();
                        SIDETAB
                        system("color 0A");
                        printf("\t   ACCOUNT DELETED SUCCESSFULLY !!!!\n");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: DELETE ANOTHER ACCOUNT\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&delopt);
                            if(delopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(delopt==1)
                            {
                                    goto redelete;
                            }
                            else
                            {
                                credits();
                            }
                }

    }

else if(ac_choice==9)
    {
    ex:
    CLS
    main();
    }

    else
    {
        credits();
    }
}

void credits()
{
            CLS
            newsolidline();
            system("COLOR 0F");
            printf("\t\t\t\t\t\t        BANK MANAGEMENT SOFTWARE\n\n");
            printf("\t\t\t\t\t\t   MADE BY : ASHUTOSH SINGH DENGRI\n");
            printf("\t\t\t\t\t\t    EMAIL ID : ashutoshsinghdengri@gmail.com \n");
            printf("\t\t\t\t\t\t    PROJECT STARTED ON : 02/05/2022 \n");
            solidline();
            SIDETAB
            printf("EXITING .................................................\n\n");
            waitlong();
            exit(0);
}

/* LOGIN WINDOW FUNCTION */

void login()
{
    if(loginflag==0)
    {
    loginflag=1;
    char pass[10],new_pass[10],old_pass[10]="codewithc";
    int menu_in,sec_key=911;
    int in;
    CLS
    system("COLOR 0F");
    redo:
    newsolidline();
    printf("\t\t\t\t\t\t        BANK MANAGEMENT SOFTWARE\n");
    solidline();
    printf("\t\t\t\t\t\t\t    LOGIN WINDOW\n\n");
    printf("\n\t\t\t\t\tLOGIN PASSWORD : ");
    scanf("%s",&pass);
    if(strcmp(pass,old_pass)==0)
    {
    system("color 0A");
    CLS
    newsolidline();
    printf("\t\t\t\t\t\t            ACCESS GRANTED !!\n");
    solidline();
    wait();
    CLS
    }
    else
    {
    system("color 0C");
    CLS
    newsolidline();
    printf("\t\t\t\t\t\t             ACCESS DENIED !!\n \n");
    SIDETAB
    printf("\t       PASSWORD DID NOT MATCHED !!!!\n");
    solidline();
    SIDETAB
    printf("  CHOOSE THE OPTION NOW\n");
    SIDETAB
    printf("  1: RETRY\n");
    SIDETAB
    printf("  0: EXIT\n\n");
    printf("\t\t\t\t\t  ENTER YOUR CHOICE : ");
    int log_choice;
    scanf("%d",&log_choice);
    if(log_choice==1)
        {
             CLS
             goto redo;
        }
    else
    credits();
    }
    }
    else
    CLS;
}

void lists()
{
    int flag2=0;
    ptr=fopen("records.txt","r");
    int given_no,flag;
    CLS
    system("COLOR 0F");
    printf("\n\n\n\n\n\t\t\t\t   ");
    printf("=====================================================================\n\n");
    printf("\t\t\t\t\t\t          ACCOUNTS LIST WIZARD   \n\n");
    printf("\t\t\t\t   ");
    printf("=====================================================================\n\n");
    printf("\t\t\t\t   ");
    puts("A\\c\t\tHOLDER\t\tMOB No. \t ADDRESS \t BALANCE\n");
    while(fscanf(ptr,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
    {
    printf("\n");
    flag2=1;
    printf("\t\t\t\t   ");
    printf("%d\t%s\t%d\t%s\t%d",records.a_number,records.name,records.m_no,records.address,records.balance);
    }
    if(flag2==0)
    {
        SIDETAB
        system("color C");
        printf("NO RECORDS FOUND !\n");
    }
    fclose(ptr);
    printf("\t\t\t\t   ");
    printf("\n");
    printf("\t\t\t\t   ");
    printf("=====================================================================\n");
    printf("\n");
    SIDETAB
    printf("CHOOSE THE OPTION NOW\n");
    SIDETAB
    printf("1: MAIN MENU\n");
    SIDETAB
    printf("0: EXIT\n\n");
    SIDETAB
    printf("ENTER YOUR CHOICE : ");
    int x;
    scanf("%d",&x);
    if(x==1)
        { CLS
          main(); }
    else
        credits();
    }

/* LOADING ANIMATION */

void loading()
{
    if(loginflag==0)
    {
    int i;
    system("COLOR 09");
    CLS
    newsolidline();
    printf("\t\t\t\t\t\t        BANK MANAGEMENT SOFTWARE\n");
    solidline();
    printf("\t\t\t\t\t\t\t   LOADING ");
    for(i=5;i>=0;i--)
    {
    if(i==0)
    {
        printf("\n\n\t\t\t\t\t\t      LOADED SUCCESFULY !!!!");
        wait();
    }
    else
    {
        wait();
        printf("%c",254);
    }
    }
    }
    else
    CLS
}

void withdraw()
{
            FILE *newwith_data,*pwith_data;
        int awithdraw=0,withopt;
        rewithd:
        awithdraw=0;
        system("COLOR 0F");
        newwith_data=fopen("withdraw.txt","w");
        pwith_data=fopen("records.txt","r");
        CLS
        newline();
                if(pwith_data==NULL)
                {
                        fclose(pwith_data);
                        fclose(newwith_data);
                        system("del withdraw.txt");
                        system("color 0C");
                        CLS
                        newline();
                        SIDETAB
                        printf("          DATABASE FILE NOT FOUND EXITING !!!!!\n");
                        line();
                        wait();
                        credits();
                }
                else if (newwith_data==NULL)
                    {
                    fclose(pwith_data);
                    fclose(newwith_data);
                    system("del withdraw.txt");
                    system("color 0C");
                    CLS
                    newline();
                    SIDETAB
                    printf("         NEW DATABASE FILE NOT MADE EXITING !!!!!\n");
                    line();
                    wait();
                    credits();
                }
        printf("\t\t\t\t\t\tENTER THE DETAILS BELOW AND PRESS ENTER\n");
        line();
        SIDETAB
        int a_withdraw=0;
        printf("ENTER ACCOUNT NUMBER       : ");
        scanf("%d",&a_withdraw);
        while(fscanf(pwith_data,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
            {
                        if(records.a_number!=a_withdraw)
                            {
                                fprintf(newwith_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                            }
                        else if(records.a_number==a_withdraw)
                            {
                                int wbalance=0;
                                CLS
                                newsolidline();
                                SIDETAB
                                printf("ENTER THE AMOUNT TO BE WITHDRAWN FROM %d\n",records.a_number);
                                solidline();
                                SIDETAB
                                printf("ENTER THE AMOUNT : ");
                                scanf("%d",&wbalance);
                                records.balance=records.balance-wbalance;
                                fprintf(newwith_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                                awithdraw=1;
                            }
            }

                fclose(pwith_data);
                fclose(newwith_data);
                system("del records.txt");
                system("ren withdraw.txt records.txt");
                if(awithdraw!=1)
                {
                        CLS
                        newline();
                        SIDETAB
                        system("color 0C");
                        printf("\t\t  AMOUNT NOT WITHDRAWN !!!!\n");
                        SIDETAB
                        printf("\t\t      TRY AGAIN\n");
                        printf("\n\n\t\t\t\t         YOU ENTERED A WRONG A/c No. OR THE A/c DOES NOT EXISTS");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: RETRY\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&withopt);
                            if(withopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(withopt==1)
                            {
                                    goto rewithd;
                            }
                            else
                            {
                                credits();
                            }

                }
                else if(awithdraw!=0)
                {
                        awithdraw=0;
                        CLS
                        newline();
                        SIDETAB
                        system("color 0A");
                        printf("\t   AMOUNT WITHDRAWN SUCCESSFULLY !!!!\n");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: WITHDRAW FROM ANOTHER ACCOUNT\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&withopt);
                            if(withopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(withopt==1)
                            {
                                    goto rewithd;
                            }
                            else
                            {
                                credits();
                            }
                }

}

void deposit()
{
        FILE *newdep_data,*pdep_data;
        int adeposit=0,depopt;
        redeposit:
        adeposit=0;
        system("COLOR 0F");
        newdep_data=fopen("newdep.txt","w");
        pdep_data=fopen("records.txt","r");
        CLS
        newline();
                if(pdep_data==NULL)
                {
                        fclose(pdep_data);
                        fclose(newdep_data);
                        system("del newdep.txt");
                        system("color 0C");
                        CLS
                        newline();
                        SIDETAB
                        printf("          DATABASE FILE NOT FOUND EXITING !!!!!\n");
                        line();
                        wait();
                        credits();
                }
                else if (newdep_data==NULL)
                    {
                    fclose(pdep_data);
                    fclose(newdep_data);
                    system("del newdep.txt");
                    system("color 0C");
                    CLS
                    newline();
                    SIDETAB
                    printf("         NEW DATABASE FILE NOT MADE EXITING !!!!!\n");
                    line();
                    wait();
                    credits();
                }
        printf("\t\t\t\t\t\tENTER THE DETAILS BELOW AND PRESS ENTER\n");
        line();
        SIDETAB
        int a_dep=0;
        printf("ENTER ACCOUNT NUMBER       : ");
        scanf("%d",&a_dep);
        while(fscanf(pdep_data,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
            {
                        if(records.a_number!=a_dep)
                            {
                                fprintf(newdep_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                            }
                        else if(records.a_number==a_dep)
                            {
                                int newbalance=0;
                                CLS
                                newsolidline();
                                SIDETAB
                                printf("ENTER THE AMOUNT TO BE DEPOSITED IN %d\n",records.a_number);
                                solidline();
                                SIDETAB
                                printf("ENTER THE AMOUNT : ");
                                scanf("%d",&newbalance);
                                records.balance=records.balance+newbalance;
                                fprintf(newdep_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                                adeposit=1;
                            }
            }

                fclose(pdep_data);
                fclose(newdep_data);
                system("del records.txt");
                system("ren newdep.txt records.txt");
                if(adeposit!=1)
                {
                        CLS
                        newline();
                        SIDETAB
                        system("color 0C");
                        printf("\t\t  AMOUNT NOT DEPOSITED !!!!\n");
                        SIDETAB
                        printf("\t\t      TRY AGAIN\n");
                        printf("\n\n\t\t\t\t         YOU ENTERED A WRONG A/c No. OR THE A/c DOES NOT EXISTS");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: RETRY\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&depopt);
                            if(depopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(depopt==1)
                            {
                                    goto redeposit;
                            }
                            else
                            {
                                credits();
                            }

                }
                else if(adeposit!=0)
                {
                        adeposit=0;
                        CLS
                        newline();
                        SIDETAB
                        system("color 0A");
                        printf("\t   AMOUNT DEPOSITED SUCCESSFULLY !!!!\n");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: DEPOSITE TO ANOTHER ACCOUNT\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&depopt);
                            if(depopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(depopt==1)
                            {
                                    goto redeposit;
                            }
                            else
                            {
                                credits();
                            }
                }

}

void modify()
{
    FILE *mod_data,*pre_data;
        int amodified=0,modopt;
        remodify:
        amodified=0;
        system("COLOR 0F");
        mod_data=fopen("newmod.txt","w");
        pre_data=fopen("records.txt","r");
        CLS
        newline();
                if(pre_data==NULL)
                {
                        fclose(pre_data);
                        fclose(mod_data);
                        system("del newmod.txt");
                        system("color 0C");
                        CLS
                        newline();
                        SIDETAB
                        printf("          DATABASE FILE NOT FOUND EXITING !!!!!\n");
                        line();
                        wait();
                        credits();
                }
                else if (mod_data==NULL)
                    {
                    fclose(pre_data);
                    fclose(mod_data);
                    system("del newmod.txt");
                    system("color 0C");
                    CLS
                    newline();
                    SIDETAB
                    printf("         NEW DATABASE FILE NOT MADE EXITING !!!!!\n");
                    line();
                    wait();
                    credits();
                }
        printf("\t\t\t\t\t\tENTER THE DETAILS BELOW AND PRESS ENTER\n");
        line();
        SIDETAB
        int a_mod=0;
        printf("ENTER ACCOUNT NUMBER       : ");
        scanf("%d",&a_mod);
        while(fscanf(pre_data,"%d %s %d %s %d",&records.a_number,&records.name,&records.m_no,&records.address,&records.balance)!=EOF)
            {
                        if(records.a_number!=a_mod)
                            {
                                fprintf(mod_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                            }
                        else if(records.a_number==a_mod)
                            {
                                CLS
                                newsolidline();
                                SIDETAB
                                printf("ENTER THE NEW DATA FOR %d\n",records.a_number);
                                solidline();
                                SIDETAB
                                fflush(stdin);
                                printf("ENTER ACCOUNT HOLDER NAME  : ");
                                gets(records.name);
                                SIDETAB
                                printf("ENTER MOBILE NUMBER        : ");
                                scanf("%d",&records.m_no);
                                SIDETAB
                                getchar();
                                printf("ENTER ADDRESS              : ");
                                gets(records.address);
                                SIDETAB
                                printf("ENTER BALANCE DEPOSITED    : ");
                                scanf("%d",&records.balance);
                                fprintf(mod_data,"%d %s %d %s %d\n",records.a_number,records.name,records.m_no,records.address,records.balance);
                                amodified=1;
                            }
            }

                fclose(pre_data);
                fclose(mod_data);
                system("del records.txt");
                system("ren newmod.txt records.txt");
                if(amodified!=1)
                {
                        CLS
                        newline();
                        SIDETAB
                        system("color 0C");
                        printf("\t\t ACCOUNT NOT MODIFIED !!!!\n");
                        SIDETAB
                        printf("\t\t      TRY AGAIN\n");
                        printf("\n\n\t\t\t\t         YOU ENTERED A WRONG A/c No. OR THE A/c DOES NOT EXISTS");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: RETRY\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&modopt);
                            if(modopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(modopt==1)
                            {
                                    goto remodify;
                            }
                            else
                            {
                                credits();
                            }

                }
                else if(amodified!=0)
                {
                        amodified=0;
                        CLS
                        newline();
                        SIDETAB
                        system("color 0A");
                        printf("\t   ACCOUNT MODIFIED SUCCESSFULLY !!!!\n");
                        line();
                        SIDETAB
                        printf("\t       | CHOOSE THE OPTION BELOW |\n\n");
                        SIDETAB
                        printf("1: MODIFY ANOTHER ACCOUNT\n");
                        SIDETAB
                        printf("2: MAIN MENU\n");
                        SIDETAB
                        printf("0: EXIT\n");
                        SIDETAB
                        printf("\n\t\t\t\t\tENTER YOUR CHOICE : ");
                        scanf("%d",&modopt);
                            if(modopt==2)
                            {
                                CLS;
                                main();
                            }
                            else if(modopt==1)
                            {
                                    goto remodify;
                            }
                            else
                            {
                                credits();
                            }
                }

}

void wait(void)
{
  long double i;
  for(i=0;i<20000000;i++)
  {
    continue;
  }
}

void waitlong(void)
{
  int i;
  for(i=0;i<900000000;i++)
  {
    continue;
  }
}

 

 

 


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