bnkmgt.c

#include<stdio.h>

#include<stdlib.h>

#include<windows.h>

#include<conio.h>

#include<time.h>

#include<math.h>

void gotoxy(int x,int y);

void _password(char buffer[]);

void rectangle(int x,int y,int l,int b);

void cls(int x1,int y1,int x2, int y2);

void increase(char i_id[]);

void date_input(char date[]);

void date_output(char date[]);

void currency(char cur[], float n);

void num2word(double n,char word[]);

void _one(int n, char one[]);

void _ten(int n,char ten[]);

int date_check(char date[]);

void title();

void welcome();

void admin();

void add_user();

void del_user();

void edit_user();

void view_log();

void staff();

void uptodate();

void add_ac();

void deposit();

void withdraw();

void fund_transfer();

void ac_info();

void transaction();

void Home();

char date[13],ttime[10];

FILE *fp,*fp1,*tfp;

struct//Structure for storing User information

    {
        char uid[4];

        char name[30], password[30];
    } user;

struct account//Structure for storing account information

    {

        char ac_no[8];

        char fname[30], lname[30];

        char u_date[15];

        char dob[12];

        char sex[6];

        char address[50],contact[20];

        char ac_type;

        float c_bal,interest,t_bal;

    };

struct trans//Structure for storing transaction information

    {

        char ac_no[8],ac_t[25],_date[15],_ttime[10],usr[30];

        float amt;
    };

typedef struct//Structure for storing user log information

{
    char id[4];

    char name[30];

    char date[15]; //Log in date

    char stime[10];// Log in time

    char etime[10];// Log out or exit time
}user_log;

int gbl_flag=0;

int main()

{

    char c;
	Home();

    welcome();

    do

    {

        system("cls");

        rectangle(8,9,70,17);

        gotoxy(10,11); printf("Press A to Log in as ADMINISTRATOR or S to log in as STAFF\n\n\n\t\t\t\t\t");
        gotoxy(10,12); printf("(Esc to to quit..)");

        c=getche(); //Variable c stores the key pressed by user

        if(c=='A'||c=='a')

        {

            strcpy(user.name,"Admin");

            admin();

            break;

        }

        if (c=='S'||c=='s')

        {

            staff();

            break;

        }

        if (c==27) exit(0);

    }while(1); //infinite loop incase any key other than Esc, A, or S is pressed.

    return 0;

}

void staff()

{

    int i,ch;

    char uname[30], pass[30],passwrd[30]={0},id[10],nam[30];

    int c=0,cnt=0;

    char ex,stime[9],etime[9];

    cnt=0;//This variable cnt counts the number of attempts of Log in

    do

    {

        system("cls");

        rectangle(10,8,70,15);

        gotoxy(7,5);printf("Only THREE attempts shall be allowed to enter username and password.");

        gotoxy(23,10); printf("Enter User name : "); scanf("%s",user.name);

        gotoxy(23,12); printf("Password        : ");

        char passwrd[30]={0};//To nullify the string passwrd

        _password(passwrd);

        strcpy(user.password,passwrd);

        cnt++;

        if (cnt==3)// when no of attempts exceeds 3

        {

            title();

            gotoxy(25,10); printf("Invalid User name or Password!\a");

            gotoxy(22,12);printf("Press ENTER to exit the program...");

            getch();

            exit(0);

        }
        c=0;//Counts the no. of user for which the name and password matches

        fp=fopen("USER.DAT","r");

        while(fscanf(fp,"%s %s %s\n",id,nam,pass)!=EOF)

        {

             strcpy(nam,strupr(nam));//Changing all strings id, nam, pass into uppercase

             strcpy(pass,strupr(pass));

             strcpy(user.name,strupr(user.name));

             strcpy(user.password,strupr(user.password));

             if((strcmp(user.name,nam)==0)&&(strcmp(user.password,pass)==0))//account no is allocated and stored in user.dat

             {
                 c++;

                 strcpy(user.uid,id);
             }

         }
        fclose(fp);
        title();
        if (c==0)

        {
            gotoxy(10,10); printf("Cannot find the given combination of USER NAME and PASSWORD!\a");

            getch();

        }

        else break; //terminates do... while loop if record found

    } while(1);
    _strtime(stime);

    uptodate(); // To update interests

    do

    {

        title();

        gotoxy(15,8);printf("1. Create New Account\n");

        gotoxy(15,10);printf("2. Cash Deposit");

        gotoxy(15,12);printf("3. Cash Withdrawl");

        gotoxy(15,14);printf("4. Fund Transfer");

        gotoxy(15,16);printf("5. Account information");

        gotoxy(45,8);printf("6. Transaction information");

        gotoxy(45,10); printf("7. Log out");

        gotoxy(45,12);printf("8. Exit");

        gotoxy(1,17); for(i=0;i<78;i++) printf("_");

        gotoxy(23,19);printf("Press a choice between the range [1-8] ");

        switch(getch()-48)

        {

        case 1:
            add_ac();
        break;

        case 2:
            deposit();
        break;

        case 3:
            withdraw();
        break;

        case 4:
            fund_transfer();
        break;

        case 5:
            ac_info();
        break;

        case 6:
            transaction();
        break;

        case 7:
	        title();

        gotoxy(15,10); printf("Are you sure you want to Log out? <Y/N> : ");

        ex=getche();

        if (ex=='Y'||ex=='y')

        {
            _strtime(etime);

            fp=fopen("LOG.DAT","a");

            fprintf(fp,"%s %s %s %s\n",user.uid,date,stime,etime);

            fclose(fp);

            staff();
        }

        break;

        case 8:

        title();

        gotoxy(15,10); printf("Are you sure you want to exit? <Y/N> : ");

        ex=getche();

        if (ex=='Y'||ex=='y')

        {
            _strtime(etime);

            fp=fopen("LOG.DAT","a");

            fprintf(fp,"%s %s %s %s\n",user.uid,date,stime,etime);

            fclose(fp);

            exit(0);

        }

        break;

        default://when entered characted is not between 1-8

        title();

        gotoxy(10,10); printf("Your input is out of range! Enter a choice between 1 to 8!");

        gotoxy(15,12); printf("Press any key to return to main menu...");

        getch();

    }

 }while(1);//infinite loop to return to main menu after execution of any function

 }

void add_ac()

{

     struct account ac;//structure variable ac created

     char acn[8],curr[35],ch;

     int i;

     float irate;

     fp=fopen("ACCOUNT.DAT","r");

     if(fp==NULL) strcpy(ac.ac_no,"AC00001");//for first time started from AC00001

     else //otherwise a/c no of last record is accessed and increased by unit value which becomes the new a/c no.

     {

        while(fscanf(fp,"%s %s %s %s %s %s %s %s %s %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF);//note the while statement is terminated without any statement inside it. This helps in geting the last rec. of the data file

        increase(ac.ac_no);
     }

     fclose(fp);

     title();

     gotoxy(8,8); printf("PERSONAL DETAILS");

     gotoxy(7,9); for(i=0;i<18;i++) printf("%c",205);

     gotoxy(10,11); printf("Full name        :    "); scanf("%s",ac.fname); scanf("%s",ac.lname);

     gotoxy(10,13); printf("Gender <M/F>     :    "); scanf("%s",ac.sex);

        int temp1,temp2;

     do

     {

        gotoxy(10,15); printf("DOB (dd/mm/yyyy) :    "); scanf(" %s",ac.dob);

        temp1=(ac.dob[6]-48)*1000+(ac.dob[7]-48)*100+(ac.dob[8]-48)*10+(ac.dob[9]-48);

        temp2=2000+(date[6]-48)*10+(date[7]-48);

        if(date_check(ac.dob)==0||temp1>temp2)//check DOB format

        {

            printf("\a");

            cls(10,15,60,15);

        }

     }while(date_check(ac.dob)==0||temp1>temp2);//asks date unless format is correct

     _strdate(date);

     date_input(ac.dob);

     gotoxy(10,17); printf("Address          :    "); scanf(" %[^\n]s",ac.address);

     for(i=0;i<strlen(ac.address);i++)
//replace space by +
        if (ac.address[i]==32) ac.address[i]='+';

        int err;

    do

    {

     gotoxy(10,19); printf("Contact number   :    "); scanf(" %s",ac.contact);

     err=0;

        for(i=0;i<strlen(ac.contact);i++)

        if(!((ac.contact[i]>='0'&&ac.contact[i]<='9'||ac.contact[i]=='-'||ac.contact[i]=='+')&&strlen(ac.contact)>=6)) err++;

    if (err!=0) {printf("\a"); cls(10,19,70,19);}

    } while(err!=0);

     title();

     gotoxy(8,8); printf("ACCOUNT DETAILS");

     gotoxy(7,9); for(i=0;i<17;i++) printf("%c",205);

     gotoxy(10,11); printf("A/C number                     :   %s",ac.ac_no);

     int flag;

     do {

     gotoxy(10,13); printf("A/C type <S/C>                 :   ");  scanf(" %c",&ac.ac_type);

     flag=0;

     cls(45,13,78,13); //clears screen partially to display full account type.

     if (ac.ac_type=='S'||ac.ac_type=='s')

     {

         irate=8; //interest rate 8% for saving a/c

         gotoxy(45,13); printf("Saving Account");

     }

     else if (ac.ac_type=='C'||ac.ac_type=='c')

      {

         irate=4; //interest rate 4% for current saving

         gotoxy(45,13); printf("Current Account");

     }

     else

     {

         printf("\a");

         flag=1;

     }

     } while(flag==1);

     date_output(date);

     gotoxy(10,15); printf("Account Opened Date            :   %s",date);

     _strdate(date);

     strcpy(ac.u_date,date);
     gotoxy(10,17); printf("Interest rate                  :   %.2f%c per annum", irate,37);
     do
     {

        gotoxy(10,19); printf("Opening Balance (in INRs.)      :   "); scanf("%f",&ac.c_bal);

        if (ac.c_bal<0) { printf("\a"); cls(10,19,70,19);}

     }while(ac.c_bal<0);
     ac.t_bal=ac.c_bal+ac.interest;
     ac.interest=0;

    title();

    gotoxy(3,9); printf("Full name      : %s %s",ac.fname,ac.lname);

    gotoxy(3,11); printf("Gender <M/F>   : %c",ac.sex);

    gotoxy(3,13); printf("DOB (mm/dd/yy) : %s",ac.dob);

    gotoxy(3,15); printf("Address        : ");

    for(i=0;i<strlen(ac.address);i++)

            if (ac.address[i]=='+') putchar(32);//ascii value for space

            else putchar(ac.address[i]);

    gotoxy(3,17); printf("Contact number : %s",ac.contact);

    gotoxy(43,9); printf("A/C number      : %s",ac.ac_no);

    gotoxy(43,11); printf("A/C type        : ");

    if (ac.ac_type=='S'||ac.ac_type=='s') printf("Saving Account");

    if (ac.ac_type=='C'||ac.ac_type=='c') printf("Current Saving");

    gotoxy(43,13); printf("Current Date    : %s",date);

    gotoxy(43,15); printf("Interest rate   : %.2f%c per annum", irate,37);

    currency(curr,ac.c_bal);

    gotoxy(43,17); printf("Opening Balance : %s",curr);

    gotoxy(2,19); for(i=0;i<75;i++) printf("%c",196);

    gotoxy(15,21); printf("Are the informations above all correct? <Y/N> ");

    ch=getche();

    if (ch=='Y'||ch=='y')//On confirmation, new a/c (in account.dat) + transaction showing "A/C Opened" is added (in transaction.dat)

    {

        fp=fopen("ACCOUNT.DAT","a");

        fp1=fopen("TRANSACTION.DAT","a");

        _strtime(ttime);

        fprintf(fp1,"%s %s %s %s %.2f %s\n",ac.ac_no,"A/C+Opened",date,ttime,ac.c_bal,user.name);

        fprintf(fp,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

        fclose(fp);

        fclose(fp1);

        title();

        gotoxy(20,10); printf("Record Added Successfully!");

        getch();

    }

}

void uptodate()
{

    struct account ac;

    int i,no_of_yr,no_of_month,no_of_days,n1,n2;

    float r;

    fp=fopen("ACCOUNT.DAT","r");

    if (fp!=NULL)//performs every thing only when file exists i.e. only wen pointer is not null

    {

        fp1=fopen("TEMP.DAT","w");

        i=0;

        while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

        {

        //extracting no of days, months and yr of system date

        no_of_yr=(date[6]-48)*10+(date[7]-48);

        no_of_month=(date[0]-48)*10+(date[1]-48);

        no_of_days=(date[3]-48)*10+(date[4]-48);

        n1=no_of_yr*365+no_of_month*30+no_of_days;//n1 is no. of days elapsed


        no_of_yr=(ac.u_date[6]-48)*10+(ac.u_date[7]-48);

        no_of_month=(ac.u_date[0]-48)*10+(ac.u_date[1]-48);

        no_of_days=(ac.u_date[3]-48)*10+(ac.u_date[4]-48);

        n2=no_of_yr*365+no_of_month*30+no_of_days;//n2 is no. of days elapsed on last updated date

        if (ac.ac_type=='S'||ac.ac_type=='s') r=8.0/365; else r=4.0/365;

        ac.t_bal=ac.c_bal*pow((1+r/100),n1-n2);//calculation of compound interest

        ac.interest+=ac.t_bal-ac.c_bal;//calculation and addition of interest

        ac.t_bal=ac.c_bal+ac.interest;//calculation of total balance

        strcpy(ac.u_date,date);

        fprintf(fp1,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

        }

        fclose(fp);

        fclose(fp1);

        system("del ACCOUNT.DAT");

        system("ren TEMP.DAT ACCOUNT.DAT");

    }
}
void deposit()

{

    title();

    struct account ac;

    char acn[10],curr[35],ch,csh[80],temp[80],nam[35];

    int c=0;

    float amt;

    gotoxy(5,10); printf("Deposit to A/C number            : "); scanf("%s",acn);

    strcpy(acn,strupr(acn)); //changing a/c no. to uppercase

    fp=fopen("ACCOUNT.DAT","r");

    while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

        if(strcmp(acn,ac.ac_no)==0) { c++; strcpy(nam,ac.fname); strcat(nam," "); strcat(nam,ac.lname); } //variable c counts if the given a/c no exist in data file or not. also if available, the full name is extracted


    fclose(fp);

    if(c==0)//c=0 means no given a/c no. in data file
    {

        title();

        gotoxy(20,12); printf("Given A/C number does not exits!");

        getch();

        return;

    }

    gotoxy(50,10); printf("[ %s ]",nam);

    gotoxy(5,12); printf("Amount to be Deposited (in INRs.) : "); scanf("%f",&amt);

    title();

    gotoxy(30,10); printf("Confirm Transaction");

    currency(curr,amt);

    gotoxy(3,12); printf("%s to be deposited in A/C number : %s [ %s ]",curr,acn,nam);

    num2word((double)amt,csh);

                strcpy(temp,"[In words : ");

                strcat(temp,csh);

                strcat(temp,"]");

    gotoxy(40-strlen(temp)/2,14); puts(temp);

    gotoxy(8,17);printf("Are you sure you want to perform this tranasction? <Y/N>");

    ch=getche();

    if (ch=='Y'||ch=='y')

    {

        fp=fopen("ACCOUNT.DAT","r");

        fp1=fopen("TEMP.DAT","a");

        while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

        {

            if (strcmp(ac.ac_no,acn)==0) ac.c_bal+=amt;//balance is increased

            ac.t_bal=ac.c_bal+ac.interest;

            fprintf(fp1,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

        }

        fclose(fp1);

        fclose(fp);

        system("del ACCOUNT.DAT");

        system("ren TEMP.DAT ACCOUNT.DAT");

        fp=fopen("TRANSACTION.DAT","a");//transaction is added

        _strtime(ttime);

        fprintf(fp,"%s %s %s %s %.2f %s\n",acn,"Cash+Deposited",date,ttime,amt,user.name);

        fclose(fp);

       title();

        gotoxy(20,12);printf("Transaction completed successfully!");

        getch();
    }
}

void withdraw()//exactly similar to deposit. only difference is amount is subtracted.

{

    title();

    struct account ac;

    char acn[10],ch,curr[35],csh[80],temp[80], nam[50];

    int c=0;

    float amt;

    gotoxy(5,10); printf("Withdraw from A/C number          : "); scanf("%s",acn);

    strcpy(acn,strupr(acn));

    fp=fopen("ACCOUNT.DAT","r");

    while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

        if(strcmp(acn,ac.ac_no)==0) { c++; strcpy(nam,ac.fname); strcat(nam," "); strcat(nam,ac.lname); }

    fclose(fp);

    if(c==0)

    {

        title();

        gotoxy(20,12); printf("Given A/C number does not exits!");

        getch();

        return;

    }

    gotoxy(50,10); printf("[ %s ]",nam);

    gotoxy(5,12); printf("Amount to be Withdrawn (in INRs.)  : "); scanf("%f",&amt);

    fp=fopen("ACCOUNT.DAT","r");
            c=0;

            while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

            {

                if (strcmp(ac.ac_no,acn)==0&&ac.t_bal<amt)// when given amount is higher than bank balance

                {

                    title();

                    gotoxy(20,12); printf("Sorry, the current balance is Rs. %.2f only!",ac.t_bal);

                    gotoxy(25,14); printf("Transaction NOT completed!");

                    c=1;

                    getch();

                    return;

                }

            }

            fclose(fp);
                title();

    gotoxy(30,10); printf("Confirm Transaction");

    currency(curr,amt);

    gotoxy(3,12); printf("%s to be Withdrawn from A/C number : %s [%s]",curr,acn,nam);

    num2word((double)amt,csh);

                strcpy(temp,"[In words : ");

                strcat(temp,csh);

                strcat(temp,"]");

    gotoxy(40-strlen(temp)/2,14); puts(temp);

    gotoxy(8,17);printf("Are you sure you want to perform this tranasction? <Y/N>");

    ch=getche();

            if (ch=='Y'||ch=='y')

            {

                fp=fopen("ACCOUNT.DAT","r");

                fp1=fopen("TEMP.DAT","w");

                c=0;

                while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

                {

                    if (strcmp(ac.ac_no,acn)==0) ac.c_bal-=amt;

                    if (ac.c_bal<0) { ac.interest+=ac.c_bal; ac.c_bal=0; }

                    ac.t_bal=ac.c_bal+ac.interest;

                    fprintf(fp1,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

                }

            fclose(fp1);

            fclose(fp);

            system("del ACCOUNT.DAT");

            system("ren TEMP.DAT ACCOUNT.DAT");

        fp=fopen("TRANSACTION.DAT","a");

        _strtime(ttime);

        fprintf(fp,"%s %s %s %s %.2f %s\n",acn,"Cash+Withdrawn",date,ttime,amt,user.name);

        fclose(fp);

        title();

        gotoxy(20,12);printf("Transaction completed successfully!");

       getch();
    }
}
void fund_transfer()
{

    char f_acn[8],t_acn[8],ch,curr[35],rem[25],csh[80]={0},temp[80]={0},fnam[35],tnam[35];

    struct account ac;

    float amt;

    int c=0;

    title();

        gotoxy(3,8); printf("Transferred from (A/C no. )        : "); scanf("%s",f_acn);

        strcpy(f_acn,strupr(f_acn));

        fp=fopen("ACCOUNT.DAT","r");

        c=0;

        while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

            if(strcmp(f_acn,ac.ac_no)==0) { c++; strcpy(fnam,ac.fname); strcat(fnam," "); strcat(fnam,ac.lname); }

        fclose(fp);

    if (c==0)
    {

        title();

        gotoxy(20,12); printf("Given A/C number does not exits!");

        getch();

        return;

    }

        gotoxy(50,8); printf("[ %s ]",fnam);

        gotoxy(3,10); printf("Transferred to  (A/C no. )         : "); scanf("%s",t_acn);

        strcpy(t_acn,strupr(t_acn));

        fp=fopen("ACCOUNT.DAT","r");

        c=0;

        while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

        if(strcmp(t_acn,ac.ac_no)==0) { c++; strcpy(tnam,ac.fname); strcat(tnam," "); strcat(tnam,ac.lname); }

        fclose(fp);

        if (c==0)

        {

            title();

            gotoxy(20,12); printf("Given A/C number does not exits!");

            getch();

            return;

        }

            gotoxy(50,10); printf("[ %s ]",tnam);

            gotoxy(3,12); printf("Amount to be transferred (in INRs.) : "); scanf("%f",&amt);

            fp=fopen("ACCOUNT.DAT","r");

            c=0;

            while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

            {

                if (strcmp(ac.ac_no,f_acn)==0)

                {

        	        if (ac.t_bal<amt)

    	            {

                    title();

                    gotoxy(15,12); printf("Sorry, the current balance is Rs. %.2f only!",ac.t_bal);

                    gotoxy(28,14); printf("Transaction NOT completed!");

                    getch();

                    return;

	                }

                }

            }

            fclose(fp);

                title();

                gotoxy(30,8); printf("Confirm Transaction");

                currency(curr,amt);

                gotoxy(25,10); printf("%s to be Transfered",curr);

                num2word((double)amt,csh);

                strcpy(temp,"[In words : ");

                strcat(temp,csh);

                strcat(temp,"]");

                gotoxy(40-strlen(temp)/2,12); puts(temp);

                gotoxy(18,14); printf("FROM A/C number %s [ %s ]",f_acn,fnam);

                gotoxy(18,16); printf("TO   A/C number %s [ %s ]",t_acn,tnam);

                gotoxy(12,19);printf("Are you sure you want to perform this tranasction? <Y/N>");

                ch=getche();

            if (ch=='Y'||ch=='y')

            {

                fp=fopen("ACCOUNT.DAT","r");

                fp1=fopen("TEMP.DAT","w");

                c=0;

                while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

                {

                    if (strcmp(ac.ac_no,f_acn)==0) ac.c_bal-=amt;

                    if (ac.c_bal<0) { ac.interest+=ac.c_bal; ac.c_bal=0; }

                    ac.t_bal=ac.c_bal+ac.interest;

                    fprintf(fp1,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

                }

            fclose(fp1);

            fclose(fp);

            system("del ACCOUNT.DAT");

            system("ren TEMP.DAT ACCOUNT.DAT");

            fp=fopen("ACCOUNT.DAT","r");

            fp1=fopen("TEMP.DAT","w");

            c=0;

            while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

            {

                if (strcmp(ac.ac_no,t_acn)==0) ac.c_bal+=amt;

                ac.t_bal=ac.c_bal+ac.interest;

                fprintf(fp1,"%s %s %s %s %s %s %c %s %c %.2f %.2f %.2f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,ac.sex,ac.u_date,ac.ac_type,ac.c_bal,ac.interest,ac.t_bal);

            }

            fclose(fp1);

            fclose(fp);

            system("del ACCOUNT.DAT");

            system("ren TEMP.DAT ACCOUNT.DAT");

            fp=fopen("TRANSACTION.DAT","a");

            _strtime(ttime);

            strcpy(rem,"Transfered+to+");

            strcat(rem,t_acn);

            fprintf(fp,"%s %s %s %s %.2f %s\n",f_acn,rem,date,ttime,amt,user.name);

            strcpy(rem,"Received+from+");

            strcat(rem,f_acn);

            fprintf(fp,"%s %s %s %s %.2f %s\n",t_acn,rem,date,ttime,amt,user.name);

            fclose(fp);

            title();

            gotoxy(20,12);printf("Transaction completed successfully!");

            getch();
            }
}
void ac_info()
{
    int i;

    char buffer[30]={0},curr[35],curr1[35],curr2[35];

    struct account ac,srh;//structure variable srh stores the matched data from data file

    float irate;

    char c,acn[8];



         	int pos = 0,n=0,m=0,cnt;

    title();

    gotoxy(27,8);printf("1. Search by A/C number");

    gotoxy(27,10);printf("2. Search by Name");

    gotoxy(27,12);printf("3. Return to main menu");

    gotoxy(25,16); printf("Press a choice between 1-3 ");

    c=getche();

    switch(c-48)

    {
        case 1:

        title();

        gotoxy(5,8); printf("Enter A/C number : ");

        scanf("%s",acn);

        strcpy(acn,strupr(acn));

        fp=fopen("ACCOUNT.DAT","r");

        cnt = 0;



           		while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

           		{

           		    if (strcmp(acn,ac.ac_no)==0) { srh=ac; cnt++; }// if a/c no matches, srh stores all values of ac

           		}

        if (cnt==0)

        {

            title();

            gotoxy(20,12); printf("Given A/C number does not exits!");

            getch();

            return;

        }

        ac=srh;

    title();

    gotoxy(3,9); printf("Full name      : %s %s",ac.fname,ac.lname);

    gotoxy(3,11); printf("Gender <M/F>   : %c",ac.sex);

    gotoxy(3,13); printf("DOB (mm/dd/yy) : %s",ac.dob);

    gotoxy(3,15); printf("Address        : ");

    for(i=0;i<strlen(ac.address);i++)

            if (ac.address[i]=='+') putchar(32);

            else putchar(ac.address[i]);

    gotoxy(3,17); printf("Contact number : %s",ac.contact);

    gotoxy(43,9); printf("A/C number      : %s",ac.ac_no);

    gotoxy(43,11); printf("A/C type <S/F>  : ");

    if (ac.ac_type=='S'||ac.ac_type=='s') { printf("Saving Account"); irate=8.0; }

    if (ac.ac_type=='C'||ac.ac_type=='c') { printf("Current Saving"); irate=4.0;  }

    gotoxy(43,13); printf("Interest rate   : %.2f%c per annum", irate,37);

    currency(curr,ac.c_bal);

    gotoxy(43,15); printf("Current Balance : %s",curr);

    currency(curr1,ac.interest);

    gotoxy(43,17); printf("Interset        : %s",curr1);

    currency(curr2,ac.t_bal);

    gotoxy(43,19); printf("Total Balance   : %s",curr2);

    gotoxy(2,21); for(i=0;i<75;i++) printf("%c",196);

    gotoxy(5,22); printf("Press ENTER to search again or ANY OTHER KEY to return to main menu");

    c=getch();

    if(c==13) ac_info();//13 ascii code of enter

    else return;

        break;

        case 2:

         	title();

         	gotoxy(5,6); printf("Enter first name : ");

           	do

            	{

            	    gotoxy(2,7); for(i=0;i<75;i++) printf("%c",196);

                    gotoxy(2,20); for(i=0;i<75;i++) printf("%c",196);

                    gotoxy(15,21); printf("Press ENTER to view detailed information of FIRST record");

                    gotoxy(18,22); printf(" or press ESCAPE to return to main menu");

            	    gotoxy(25+n,6);

                    c = getch();

            		if( isprint(c) )

            		{

            			buffer[ pos++ ] = c;

            			printf("%c", c);

            			n++;

            		}

            		else if( c == 8 && pos )

            		{

            			buffer[ pos-- ] = '\0';

            			printf("%s", "\b \b");

            			n--;
           		}

       cls(3,10,75,11+m);

       m=0;
                        gotoxy(3,8); printf("A/C no.");

           		        gotoxy(13,8); printf("Full name");

           		        gotoxy(43,8); printf("Contact no.");

                        gotoxy(60,8); printf("Net Balance");

                        gotoxy(2,9); for(i=0;i<75;i++) printf("%c",196);

fp=fopen("ACCOUNT.DAT","r");

           		while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)
           		{

           		    cnt=0;

           		    for(i=0;i<strlen(buffer);i++)

           		    {
           		        if(buffer[i]>='a'&&buffer[i]<='z') buffer[i]=buffer[i]-32;

           		        if(ac.fname[i]>='a'&&ac.fname[i]<='z') ac.fname[i]=ac.fname[i]-32;

           		    if(buffer[i]!=ac.fname[i]) cnt++;

           		    }
           		    if(cnt==0)
           		   {
           		        if(m==0) srh=ac;

                        if(m<=9)

                        {

           		        gotoxy(3,10+m); printf("%s",ac.ac_no);

           		        gotoxy(13,10+m); printf("%s %s",ac.fname,ac.lname);

           		        gotoxy(43,10+m); printf("%s",ac.contact);

           		        currency(curr,ac.t_bal);

                        gotoxy(55,10+m); printf("%20s",curr);

                        m++;
                        }
           		    }
           		    }
fclose(fp);
           		}while( c != 13&&c!=27 );
if (c==13)
{

    ac=srh;

    title();

    gotoxy(3,9); printf("Full name      : %s %s",ac.fname,ac.lname);

    gotoxy(3,11); printf("Gender <M/F>   : %c",ac.sex);

    gotoxy(3,13); printf("DOB (mm/dd/yy) : %s",ac.dob);

    gotoxy(3,15); printf("Address        : ");

    for(i=0;i<strlen(ac.address);i++)

            if (ac.address[i]=='+') putchar(32);//puts + in place of whitespaces

            else putchar(ac.address[i]);

   gotoxy(3,17); printf("Contact number : %s",ac.contact);

    gotoxy(43,9); printf("A/C number      : %s",ac.ac_no);

    gotoxy(43,11); printf("A/C type <S/F>  : ");

    if (ac.ac_type=='S'||ac.ac_type=='s') { printf("Saving Account"); irate=8.0; }

    if (ac.ac_type=='C'||ac.ac_type=='c') { printf("Current Saving"); irate=4.0;  }

    gotoxy(43,13); printf("Interest rate   : %.2f%c per annum", irate,37);

    currency(curr,ac.c_bal);

    gotoxy(43,15); printf("Current Balance : %s",curr);

    currency(curr1,ac.interest);

    gotoxy(43,17); printf("Interset        : %s",curr1);

    currency(curr2,ac.t_bal);

    gotoxy(43,19); printf("Total Balance   : %s",curr2);

    gotoxy(2,21); for(i=0;i<75;i++) printf("%c",196);

    gotoxy(5,22); printf("Press ENTER to search again or ANY OTHER KEY to return to main menu");

    c=getch();

    if(c==13) ac_info();

    else return;
}

break;

case 3:

    return;

break;

default:

title();

        gotoxy(10,10); printf("Your input is out of range! Enter a choice between 1 to 8!");

        gotoxy(15,12); printf("Press any key to return to main menu...");

        getch();

        ac_info();
    }
}
void transaction()
{

    char acn[8],mon[10],ch,camt[25],temp[40];

    int c,i,j,l,n,x,pg=1;

    int nr;

    nr=num_of_rec("TRANSACTION.DAT",6);

    struct trans t, *selected;

    selected=(struct trans *)malloc(sizeof(struct trans)*nr);

    struct account ac,sac;

    title();

    gotoxy(8,8); printf("A/C number         : "); scanf("%s",acn);

    strcpy(acn,strupr(acn));

    fp=fopen("ACCOUNT.DAT","r");

    c=0;

    while(fscanf(fp,"%s %s %s %s %s %s %c %s %c %f %f %f\n",ac.ac_no,ac.fname,ac.lname,ac.dob,ac.address,ac.contact,&ac.sex,ac.u_date,&ac.ac_type,&ac.c_bal,&ac.interest,&ac.t_bal)!=EOF)

    if(strcmp(acn,ac.ac_no)==0)

    {
        c++;

        sac=ac;
    }

    fclose(fp);

    if (c==0)

    {

        title();

        gotoxy(20,12); printf("Given A/C number does not exits!");

        getch();

    }

    else

    {
        fp=fopen("TRANSACTION.DAT","r");

        i=0;

        while(fscanf(fp,"%s %s %s %s %f %s\n",t.ac_no,t.ac_t,t._date,t._ttime,&t.amt,t.usr)!=EOF)

                if(strcmp(acn,t.ac_no)==0) selected[i++]=t;

        l=i;

        fclose(fp);

        strcpy(selected[l].ac_no,t.ac_no);

        strcpy(selected[l].ac_t,"Interest");

        strcpy(selected[l]._date,date);

        _strtime(ttime);

        strcpy(selected[l]._ttime,ttime);

        selected[l].amt=sac.interest;

        l++;

        strcpy(selected[l].ac_no,t.ac_no);

        strcpy(selected[l].ac_t,"Closing balance");

        strcpy(selected[l]._date,date);

        _strtime(ttime);

        strcpy(selected[l]._ttime,ttime);

        selected[l].amt=sac.c_bal+sac.interest;

        l++;

        n=0; c=0;

        float dr=0,cr=0;

        do

        {

        title();

        gotoxy(2,6);puts("Sr No.");

        gotoxy(6,6);puts("     Details");

        gotoxy(28,6); puts("Date");

        gotoxy(44,6); puts("Time");

        gotoxy(50,6);puts("   Dr. (INRs.)");

        gotoxy(65,6);puts("   Cr. (INRs.)");

        gotoxy(1,7); for(i=1;i<79;i++) printf("%c",196);

        gotoxy(1,21); for(i=1;i<79;i++) printf("%c",196);

        if(n>l) {n=0; pg=1;}

        i=n;

        gotoxy(2,22); printf("Page : %d out of %d",pg,(int)l/10+1);

        if (l>9)

            if (pg!=(int)l/10+1) { gotoxy(25,22); printf("Press SPACE BAR to view next page");}

            else { gotoxy(25,22); printf("Press SPACE BAR to view first page");}

        gotoxy(2,20); printf("A/C holder : %s %s",sac.fname,sac.lname);

        currency(camt,sac.t_bal);

        strcpy(temp,"Bank Balance : ");

        strcat(temp,camt);

        gotoxy(78-strlen(temp),20); printf("%s",temp);

        for(j=0;j<10;j++)

        {

        gotoxy(2,8+j); printf("%d.",i+1);

        for(x=0;x<strlen(selected[i].ac_t);x++) if(selected[i].ac_t[x]=='+') selected[i].ac_t[x]=32;

        gotoxy(6,8+j); puts(selected[i].ac_t);

        if (c==0) date_output(selected[i]._date);

        gotoxy(28,8+j); puts(selected[i]._date);

        selected[i]._ttime[5]='\0';

        gotoxy(44,8+j); printf("%s",selected[i]._ttime);

        if(selected[i].ac_t[0]=='T')

        {

            gotoxy(65,8+j);

            printf("%13.2f",selected[i].amt);

            cr+=selected[i].amt;

        }

        else if (selected[i].ac_t[0]=='C'&&(selected[i].ac_t[5]=='W'||selected[i].ac_t[1]=='l'))

            {

            gotoxy(65,8+j);

            printf("%13.2f",selected[i].amt);

            cr+=selected[i].amt;

            }

            else

            {
                gotoxy(50,8+j);

                printf("%13.2f",selected[i].amt);

                dr+=selected[i].amt;
            }

            i++;

            if(i>=l) break;

        }
        n+=10;
       if (i>=l)

       {

        gotoxy(1,9+j); for(x=1;x<79;x++) printf("%c",196);

        gotoxy(40,10+j); printf("TOTAL");

        gotoxy(50,10+j); printf("%13.2f",dr);

        gotoxy(65,10+j); printf("%13.2f",cr);

        dr=cr=0;

        gotoxy(1,11+j); for(x=1;x<79;x++) printf("%c",196);

        c++;
    }
       ch=getche();
        if (ch==32) pg++;
        } while(ch==32);
    }

}
void admin()
{

    char uname[30], pass[30]={0};

    int c=0,cnt=0;

    do

    {

    c=0;

    system("cls");

    gotoxy(7,5);printf("Only THREE attempts shall be allowed to enter username and password.");

    rectangle(10,8,70,15);

    gotoxy(23,10); printf("Enter User name : "); scanf("%s",uname);

    char pass[30]={0};

    gotoxy(23,12); printf("Password        : "); _password(pass);

    strcpy(uname,strupr(uname)); //Changes string uname into uppercase

    strcpy(pass,strupr(pass));

    cnt++;//This variable counts the number of times the password is asked. Note that if cnt==3 then the program terminates after displaying error message

    if (cnt==3)

    {

        title();

        gotoxy(25,8); printf("Invalid User name or Password!\a");

        gotoxy(22,11);printf("Press any key to exit the program...");

        getch();

        exit(0); //exits the program

    }

    if(strcmp(uname,"ADMIN")==0&&strcmp(pass,"MICROPRJCT")==0) c=1;//if user name and passpord matches, the value of c is changed from 0 to 1. The purpose of changing value of c is seen @line 77 where the password is asked again if c!=0 i.e. if given password is invalid

    else

    {

        title();

        gotoxy(25,10); printf("Invalid User name or Password!\a");

        getch();
    }

   } while(c!=1);

do

    {

    title();

    int ch,i;

    char ex,key;

    gotoxy(30,8);printf("1. Add User");

    gotoxy(30,10);printf("2. Delete User");

    gotoxy(30,12);printf("3. Edit User name / Password");

    gotoxy(30,14);printf("4. View User Log");

    gotoxy(30,16);printf("5. Exit");

    gotoxy(1,17); for(i=0;i<78;i++) printf("_");

    gotoxy(23,19);printf(" Press a number between the range [1 -5]  ");

    key=getche();

    ch=key-48;//changes char key into integer ch eg. '1'(ascii value 49)--->49-48=1
    switch(ch)

    {

        case 1: add_user();break;

        case 2: del_user();break;

        case 3: edit_user();break;

        case 4: view_log();break;

        case 5:title();

        gotoxy(15,10); printf("Are you sure you want to exit? <Y/N> : ");

        ex=getche();

        if (ex=='Y'||ex=='y') exit(0);
        break;

        default:

        title();

        gotoxy(10,10); printf("Your input is out of range! Enter a choice between 1 to 5!");

        gotoxy(15,12); printf("Press ENTER to return to main menu...");

        getch();

    }

    } while(1);//goes to main menu repeatedly unless user's choice is exit

    return;

}
void add_user()

{
        int err1=0,c=0;

        char passwrd1[30]={0};

        char passwrd2[30]={0};

        char nam[30],pass[30];

        do{

            title();

            err1=0;

            gotoxy(25,8);printf("User Name        : ");

            scanf("%s",user.name);

            fp=fopen("USER.DAT","r");//opens the datafile USER.DAT to check if the user name already exits or not
        c=0;

                while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF)

                {

                    strcpy(nam,strupr(nam));

                    strcpy(user.name,strupr(user.name));

                    if(strcmp(nam,user.name)==0) c++;//if given username and the username of datafile matches, c is increased by 1

                }

                fclose(fp);

                if(c!=0)//it is neccessary for c to be zero to avoid duplicate user name

                {

                    gotoxy(10,10);

                    printf("User name already exists! Please enter a new user name.\a");

                    getch();

                    err1++;//this is an error flag. its signigicance is observed @line 216

                    continue;// skips all the commands below and go for next loop of do..while @line 174

                }
            gotoxy(25,10);printf("Password         : ");

            _password(passwrd1);

            strcpy(user.password,passwrd1);

            gotoxy(25,12);printf("Confirm Password : ");

            _password(passwrd2);

            if (strcmp(user.password,passwrd2)!=0)//checking if password and confirm password match

            {

                title();

                gotoxy(10,10);

                printf("Password and confirm password does not match!\a");

                getch();

                err1++;

            }

        }while(err1!=0);

        fp=fopen("USER.DAT","r");//data file again opened to read the last user id
        char id[4];

        if (fp==NULL)  strcpy(user.uid,"U01");//if USER.DAT does not exists userid is set to first i.e. U01

        else

        {

                while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF);//last user id is read

                increase(user.uid);//userid is incread by 1. eg. U09-->U10. note that increase() is our user defined function

        }

        fclose(fp);

        fp=fopen("USER.DAT","a");//data file open to append (add) record

        fprintf(fp,"%s %s %s\n",user.uid,user.name,user.password); //record written in datafile

        fclose(fp);

        title();

        gotoxy(25,10); printf("Record ADDED successfully!");

        getch();

}
void del_user()

{

    char nam[30], pass[30],ch,id[5],passwrd[30]={0};

    int c=0;

    user_log log;

       title();

            gotoxy(25,8);printf("User Name  : ");

            scanf("%s",user.name);

            gotoxy(25,10);printf("Password  : ");

            _password(passwrd);

            strcpy(user.password,passwrd);

        fp=fopen("USER.DAT","r");//opening datafile to read in order to check if the given user name and password combination exists

         while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF)

         {

             strcpy(nam,strupr(nam));

             strcpy(pass,strupr(pass));

             strcpy(user.name,strupr(user.name));

             strcpy(user.password,strupr(user.password));

             if(strcmp(user.name,nam)==0&&strcmp(user.password,pass)==0) c++;
         }

        fclose(fp);

        title();

        if (c==0)//note that c must be 1 if given user name and password exists

        {
            gotoxy(10,10); printf("Cannot find the given combination of USER NAME and PASSWORD!\a");

            getch();

            return;

        }
            gotoxy(15,10); printf("Are you sure you want to DELETE this user? <Y/N> : ");

            ch=getche();

            if(ch=='Y'||ch=='y')

            {

                fp=fopen("USER.DAT","r");

                tfp=fopen("temp.dat","a");//creating a temporary datafile where all the contents of USER.DAT is copied except the one entered by user to delete. Note that @line 292 and 293 we have first deleted our old datafile USER.DAT and renamed the duplicate copy temp.dat into USER.DAT. This concept has been used to delete and edit records of data file

                while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF)

                {

                    strcpy(nam,strupr(nam));

                    strcpy(pass,strupr(pass));

                    if(strcmp(user.name,nam)!=0||strcmp(user.password,pass)!=0)

                       fprintf(tfp,"%s %s %s\n",user.uid,nam,pass);

                    else

                       strcpy(id,user.uid);

                }

                fclose(fp);

                fclose(tfp);

                system("del USER.DAT");

                system("ren temp.dat USER.DAT");

                fp=fopen("LOG.DAT","r");

                tfp=fopen("temp.dat","w");//creating a temporary datafile where all the contents of USER.DAT is copied except the one entered by user to delete. Note that @line 292 and 293 we have first deleted our old datafile USER.DAT and renamed the duplicate copy temp.dat into USER.DAT. This concept has been used to delete and edit records of data file

                while(fscanf(fp,"%s %s %s %s",log.id,log.date,log.stime,log.etime)!=EOF)

                {

                    strupr(log.id);

                    strupr(id);

                    if(strcmp(log.id,id)!=0)

                        fprintf(tfp,"%s %s %s %s\n",log.id,log.date,log.stime,log.etime);

                }

                fclose(fp);

                fclose(tfp);

                system("del LOG.DAT");

                system("ren temp.dat LOG.DAT");

                title();

                gotoxy(25,10); printf("Record DELETED successfully!");

                getch();

            }
}
void edit_user()

{

    char nam[30], pass[30],ch, n_nam[30], n_pass[30]={0},passwrd[30]={0},n_pass1[30]={0};

    int c=0,err=0;

        title();

            gotoxy(25,8);printf("User Name  : ");

            scanf("%s",user.name);

            gotoxy(25,10);printf("Password  : ");

            _password(passwrd);

            strcpy(user.password,passwrd);

        fp=fopen("USER.DAT","r");

         while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF)
         {

             strcpy(nam,strupr(nam));

             strcpy(pass,strupr(pass));

             strcpy(user.name,strupr(user.name));

             strcpy(user.password,strupr(user.password));

             if(strcmp(user.name,nam)==0&&strcmp(user.password,pass)==0) c++;

         }

        fclose(fp);

        title();

        if (c==0)

        {
            gotoxy(10,10); printf("Cannot find the given combination of USER NAME and PASSWORD!\a");

            getch();

        }

        else

        {

           gotoxy(8,10); printf("Are you sure you want to CHANGE user name and/or password? <Y/N> : ");

            ch=getche();

            if(ch=='Y'||ch=='y')

            {

                do

                {

                 title();

                    err=0;

                    gotoxy(25,8);

                    printf("NEW User Name        : ");

                    scanf("%s",n_nam);

                    gotoxy(25,10);

                    printf("NEW Password         : ");

                    _password(n_pass);

                    gotoxy(25,12);

                    printf("Confirm NEW Password : ");

                    _password(n_pass1);

                    if (strcmp(n_pass,n_pass1)!=0)

                    {

                        title();

                        gotoxy(10,10);

                        printf("Password and confirm password does not match!\a");

                        getch();

                        err++;

                    }
                } while(err!=0);

                fp=fopen("USER.DAT","r");

                tfp=fopen("temp.dat","a");

                while(fscanf(fp,"%s %s %s\n",user.uid,nam,pass)!=EOF)

                {

                    strcpy(nam,strupr(nam));

                    strcpy(pass,strupr(pass));

                    if(strcmp(user.name,nam)!=0||strcmp(user.password,pass)!=0)

                        fprintf(tfp,"%s %s %s\n",user.uid,nam,pass);

                    else

                        fprintf(tfp,"%s %s %s\n",user.uid,n_nam,n_pass);

                }

                fclose(fp);

                fclose(tfp);

                system("del USER.DAT");

                system("ren temp.dat USER.DAT");

                title();

                gotoxy(25,10); printf("Record has been EDITED successfully!");

                getch();

            }
        }
}
void view_log()
{

    int nr;

    nr=num_of_rec("LOG.DAT",4);

    user_log *log,*selected,*temp;

    log=(user_log *)malloc(sizeof(user_log)*nr);

    selected=(user_log *)malloc(sizeof(user_log)*nr);

    temp=(user_log *)malloc(sizeof(user_log)*nr);

    int i=0,l,j,c=0,n=0,l1,cnt=0;

    char uid[4],nam[30],pass[30],key,ch;

do {

        i=0;c=0;n=0;cnt=0;

        tfp=fopen("LOG.DAT","r");
        while(fscanf(tfp,"%s %s %s %s\n",log[i].id,log[i].date,log[i].stime,log[i].etime)!=EOF)

        {

            fp=fopen("USER.DAT","r");

            while(fscanf(fp,"%s %s %s\n",uid,nam,pass)!=EOF)

                if(strcmp(log[i].id,uid)==0) strcpy(log[i].name,nam);
            i++;

            fclose(fp);

        }

        l=i;

        fclose(tfp);

    title();

    gotoxy(30,8);printf("1. View by USER NAME");

    gotoxy(30,10);printf("2. View by DATE");

    gotoxy(30,12);printf("3. View ALL User history");

    gotoxy(30,14);printf("4. Return to main menu");

    gotoxy(1,15); for(i=0;i<78;i++) printf("_");

    gotoxy(23,17);printf(" Press a number between the range [1 -4]  ");

    key=getche()-48;

    j=0;

    title();

    switch(key)

    {

        case 1:

            gotoxy(30,10); printf("Enter user name : "); scanf(" %s",nam);

            strcpy(nam,strupr(nam));

            for(i=0;i<l;i++)

            {   strcpy(log[i].name,strupr(log[i].name));

                if(strcmp(log[i].name,nam)==0) selected[j++]=log[i];

            }

            l1=j;//l1 is number of selected (that are to be displayed) records

        break;

        case 2:
            do
            {

            gotoxy(30,10); printf("Enter Date (dd/mm/yyyy) : "); scanf(" %s",nam);

            if(date_check(nam)==0) { cls(30,10,70,10); printf("\a");}

            }while(date_check(nam)==0);

            date_input(nam);

            for(i=0,j=0;i<l;i++)

                  if(strcmp(log[i].date,nam)==0) selected[j++]=log[i];
            l1=j;
        break;
        case 3:

            for(i=0;i<l;i++)

                  selected[j++]=log[i];

            l1=j;

        break;

        case 4:

            return;
        break;
        default:

        title();

        gotoxy(10,10); printf("Your input is out of range! Enter a choice between 1 to 4!");

        gotoxy(15,12); printf("Press ENTER to return to main menu...");

        getch();

        c=1;

    }

    if(l1==0)//l1==0 means no supporing data available

    {

        title();

        gotoxy(27,12); printf("No related record(s) found!\a");

        getch();

        view_log();

    }
    if(c==0)

    {

        for(i=0,j=l1-1;i<l1;i++,j--)

            temp[i]=selected[j];

        for(i=0;i<l1;i++)

            selected[i]=temp[i];
        do

        {

        title();

            if (l1<12)

            {

                gotoxy(8,21); printf("Press S to toggle Sorting between ascending or descending order.");

            }
            else

            {

            gotoxy(15,21); printf("Press SPACE BAR to view more data");

            }

        gotoxy(5,8); printf("SN\t User Name\tDate\t\tStart time\tEnd Time");

        gotoxy(4,9); for(i=0;i<70;i++) printf("%c",196);

        if(cnt!=0)

            {

                for(i=l1-1;i>=0;i--)

                    temp[l1-i-1]=selected[i];

                for(i=0;i<l1;i++)

                    selected[i]=temp[i];

            }
        if(n>l1) n=0;
        for(i=n,j=0;i<l1;i++,j++)

        {

        gotoxy(5,10+j);printf("%d.",i+1);

        selected[i].stime[5]='\0';

        selected[i].etime[5]='\0';

        if (strlen(selected[i].date)<10)

        {

        date_output(selected[i].date);

        }

        gotoxy(9,10+j); printf("%s\t\t%s\t%s\t\t%s",selected[i].name,selected[i].date,selected[i].stime,selected[i].etime);

        if(i>=n+9) { n=n+10; break;}

        }

        ch=getche();

        if(ch=='S'||ch=='s')cnt=1;

      if(ch==32&&i==l1) n=0;

        } while(ch=='S'||ch=='s'||ch==32);
    }
  else c=0;
    } while(1);
}

void welcome()

{
	char a[22]="BANK MANAGEMENT SYSTEM";
    int i;

    system("cls");
    rectangle(0,0,80,23);

    gotoxy(27,4);
	for(i=0;i<22;i++){
		delay(20);
		printf("%c",a[i]);
	}


    gotoxy(25,5);
	 for(i=0;i<27;i++)
	{
	delay(30);
	printf("%c",205);
	}

    gotoxy(25,8); printf("Designed and Programmed by:");

    gotoxy(25,9);
	for(i=0;i<27;i++)
	{
	delay(30);
	printf("%c",205);
	}

	gotoxy(33,12);for(i=0;i<13;i++)
	{
	delay(30);
	printf("%c",249);
	}
    gotoxy(33,11);delay(50);printf("Omkar kadlag\n");
	gotoxy(33,14);for(i=0;i<13;i++)
	{
	delay(30);
	printf("%c",249);
	}
    gotoxy(33,13);delay(50); printf("Samarth Misal\n");
    gotoxy(33,16);for(i=0;i<13;i++)
	{
	delay(30);
	printf("%c",249);
	}
	gotoxy(33,15); delay(50);printf("Swapnil Londhe\n");
	{
	delay(30);
	printf("%c",249);
	}
	gotoxy(24,20);

    printf("Press Any key to continue...");
    getch();

}
void delay(unsigned int mseconds)
{

    clock_t goal = mseconds + clock();

    while (goal > clock());

}

void date_input(char date[]) // dd/mm/yyyy ----> mm/dd/yy

{

    char temp[15];

    temp[3]=date[0];

    temp[4]=date[1];

    temp[0]=date[3];

    temp[1]=date[4];

    temp[6]=date[8];

    temp[7]=date[9];

    temp[8]='\0';

    temp[2]=temp[5]='/';

    strcpy(date,temp);

}
void date_output(char date[]) //mm/dd/yy ---> dd MMM, yyyy

{

    struct

    {

        int dd;

        char mm[4];

        int yyyy;

    }_date;

    char temp[15];

    int mm,c,i;

    _date.dd=(date[3]-48)*10+(date[4]-48);

    mm=(date[0]-48)*10+(date[1]-48);

    _date.yyyy=2000+(date[6]-48)*10+(date[7]-48);

switch(mm)

    {

        case 1: strcpy(_date.mm,"Jan"); break;

        case 2: strcpy(_date.mm,"Feb"); break;

        case 3: strcpy(_date.mm,"Mar"); break;

        case 4: strcpy(_date.mm,"Apr"); break;

        case 5: strcpy(_date.mm,"May"); break;

        case 6: strcpy(_date.mm,"Jun"); break;

        case 7: strcpy(_date.mm,"Jul"); break;

        case 8: strcpy(_date.mm,"Aug"); break;

        case 9: strcpy(_date.mm,"Sep"); break;

        case 10: strcpy(_date.mm,"Oct"); break;

        case 11: strcpy(_date.mm,"Nov"); break;

        case 12: strcpy(_date.mm,"Dec"); break;

    }

    temp[0]=(int)(_date.dd/10)+48;

    temp[1]=(int)(_date.dd%10)+48;

    temp[2]=32;

    temp[3]='\0';

    strcat(temp,_date.mm);

    temp[6]=',';

    c=0;

    temp[7]=32;

    for(i=3;i>=0;i--)

    {

        temp[8+c]=(int)(_date.yyyy/pow(10,i))+48;

        c++;

        _date.yyyy%=(int)pow(10,i);

    }

    temp[12]='\0';

    strcpy(date,temp);

    }

int date_check(char _date[]) //_date[] is in format dd/mm/yyyy

{

    int err=0,mm,dd,yyyy;

    if(strlen(_date)!=10) err++;

    if(_date[2]!='/'||_date[5]!='/') err++;

    mm=(_date[3]-48)*10+(_date[4]-48);

    if (mm>12) err++;

    dd=(_date[0]-48)*10+(_date[1]-48);

    yyyy=(_date[6]-48)*1000+(_date[7]-48)*100+(_date[8]-48)*10+(_date[9]-48);

    switch(mm)

    {

        case 1: if (dd>31) err++; break;

        case 2:

            if (dd>28) err++;

            if (yyyy%4==0&&dd==29) err--;

            break;

        case 3: if (dd>31) err++; break;

        case 4: if (dd>30) err++; break;

        case 5: if (dd>31) err++; break;

        case 6: if (dd>30) err++; break;

        case 7: if (dd>31) err++; break;

        case 8: if (dd>31) err++; break;

        case 9: if (dd>30) err++; break;

        case 10: if (dd>31) err++; break;

        case 11: if (dd>30) err++; break;

        case 12: if (dd>31) err++; break;
   }

    if (err==0)

        return 1;

    else

        return 0;
}
void num2word(double n,char word[])
{
    long int num;

    int a[6],i;

    num=(int)n;

    a[5]=num%1000;

    num=num/1000;

    for(i=4;i>=0;i--)
    {

        a[i]=num%100;

        num=num/100;

    }
    int m,h,tt,t,o;

    m=a[5];

    h=m/100;

    tt=m%100;

    t=tt/10;

    o=tt%10;

    char one[10],ten[10],hh[20]={0};

    if(tt<20&&h!=0)

    {

        _one(h,one);

        strcpy(hh,one);

        strcat(hh,"Hundred ");

        _one(tt,one);

        strcat(hh,one);

    }

    else if(tt<20&&h==0)

    {

        _one(tt,one);

        strcpy(hh,one);
    }

    else if(tt>20&&h!=0)
    {

        _one(h,one);

        strcpy(hh,one);

        strcat(hh,"Hundred ");

        _ten(t,ten);

        strcat(hh,ten);

        _one(o,one);

        strcat(hh,one);

    }
    else
    {
        _ten(t,ten);

        strcpy(hh,ten);

        _one(o,one);

        strcat(hh,one);
    }
    char aa[5][30];

    for(i=4;i>=0;i--)

    {
        if (a[i]<20)
        {
            _one(a[i],one);

            strcpy(aa[i],one);
        }
       else
        {
            _ten(a[i]/10,ten);

            strcpy(aa[i],ten);

            _one(a[i]%10,one);

            strcat(aa[i],one);
        }
    }

    char x[10]={0},w[50]={0};

    int l;

    for(i=0;i<5;i++)
    {
        l=strlen(aa[i]);

        if(l!=0)
       {
            switch(i)
            {
                case 0: strcpy(x,"Trillon"); break;

                case 1: strcpy(x,"Billion "); break;

                case 2: strcpy(x,"Crore "); break;

                case 3: strcpy(x,"Lakh "); break;

                case 4: strcpy(x,"Thousand "); break;

            }

            strcat(w,aa[i]);

            strcat(w,x);

        }

    }

    strcpy(word,w);

    strcat(word,hh);

    word[strlen(word)-1]='\0';
}
void _ten(int n,char ten[])
{
    switch(n)
    {
        case 2: strcpy(ten,"Twenty "); break;

        case 3: strcpy(ten,"Thirty "); break;

        case 4: strcpy(ten,"Forty "); break;

        case 5: strcpy(ten,"Fifty "); break;

        case 6: strcpy(ten,"Sixty "); break;

        case 7: strcpy(ten,"Seventy "); break;

        case 8: strcpy(ten,"Eighty "); break;

        case 9: strcpy(ten,"Ninety "); break;

        default:
        strcpy(ten,"");
    }
}

void _one(int n, char one[])
{

    switch(n)
    {

        case 1: strcpy(one,"One "); break;

        case 2: strcpy(one,"Two "); break;

        case 3: strcpy(one,"Three "); break;

        case 4: strcpy(one,"Four "); break;

        case 5: strcpy(one,"Five "); break;

        case 6: strcpy(one,"Six "); break;

        case 7: strcpy(one,"Seven "); break;

        case 8: strcpy(one,"Eight "); break;

        case 9: strcpy(one,"Nine "); break;

        case 10: strcpy(one,"Ten "); break;

        case 11: strcpy(one,"Eleven "); break;

        case 12: strcpy(one,"Tweleve "); break;

        case 13: strcpy(one,"Thirteen "); break;

        case 14: strcpy(one,"Fourteen "); break;

        case 15: strcpy(one,"Fifteen "); break;

        case 16: strcpy(one,"Sixteen "); break;

        case 17: strcpy(one,"Seventeen "); break;

        case 18: strcpy(one,"Eighteen "); break;

        case 19: strcpy(one,"Nineteen "); break;

        default:

        strcpy(one,"");
    }
}
void currency(char cur[], float n)
{
    int num,i,x,c;

   char temp[30];

    num=(int)n;

    int a[6];

    a[5]=num%1000;

    num=num/1000;

    for(i=4;i>=0;i--)
    {
        a[i]=num%100;

        num=num/100;
    }
    for(i=0;i<6;i++)

        if (a[i]!=0) break;

        x=i;

        c=0;

        for(i=x;i<6;i++)

        {

            if(i==5)
            {

                if (a[i]>=100||i!=x) cur[c++]=(a[i]/100)+48;

                if (a[i]%100>=10||i!=x) cur[c++]=(a[i]%100)/10+48;

                if (a[i]%100<10&&i==x) cur[c++]=48;

                cur[c++]=(a[i]%100)%10+48;
            }

            else

            {

                if (a[i]>=10||i!=x) cur[c++]=(a[i]/10)+48;

                cur[c++]=(a[i]%10)+48;

                cur[c++]=',';

            }

        }

        cur[c++]='.';

        num=(n-(int)n)*100;

        cur[c++]=num/10+48;

        cur[c++]=num%10+48;

        cur[c]='\0';

        if (n==0) strcpy(cur,"0.00");

        strcpy(temp,"Rs. ");

        strcat(temp,cur);

        strcpy(cur,temp);

}
void cls(int x1,int y1,int x2, int y2)
{

    int i,j;

    for(i=y1;i<=y2;i++)

        for(j=x1;j<=x2;j++)

            {

                gotoxy(j,i); printf("%c",32);

           }
}

void increase(char i_id[])
{
    int l;
    l=strlen(i_id)-1;
    do
    {

        if(i_id[l]!='9') i_id[l]+=1;

        else i_id[l]='0';

        l--;

    }while(i_id[l+1]=='0');
}
int num_of_rec(char file[],int n)
{

    FILE *fptr;

    char dat[200];

    long int c=0;

    fptr=fopen(file,"r");

    while(fscanf(fptr,"%s",dat)!=EOF) c++;

    fclose(fptr);

    return c/n;



}
void _password(char buffer[])
	{
	     	char c;

         	int pos = 0;

           	do
            	{

           		 c = getch();

            		if( isprint(c) )

            		{
            			buffer[ pos++ ] = c;

            			printf("%c", '*');
            		}
           		else if( c == 8 && pos )
            		{

            			buffer[ pos-- ] = '\0';

           			printf("%s", "\b \b");
           		}
           	}while( c != 13 );
	}
void rectangle(int x,int y,int l,int b)
{
    int i,m;
    gotoxy(x,y); printf("%c",201);
    for(i=x+1;i<l-1;i++)
    {

        gotoxy(i,y);

        printf("%c",205);

    }

    gotoxy(i,y); printf("%c",187);

    for (m=y+1;m<b;m++)

    {

        gotoxy(x,m);

        for(i=x;i<l;i++)

        {

            if(i==x||i==l-1)

            {

                gotoxy(i,m); printf("%c",186);

            }
        }
    }
    gotoxy(x,m); printf("%c",200);

    for(i=x+1;i<l-1;i++)
    {

        gotoxy(i,m);

        printf("%c",205);
    }

    gotoxy(i,m); printf("%c",188);

}
void title()
{

    int i;
    system("cls");
    rectangle(0,0,80,23);
    gotoxy(25,1);

    printf("Banking Management System");

    gotoxy(5,3);

    if (strcmp(user.name,"Admin")==0) gbl_flag=1;

    if (gbl_flag) printf("Current User : Admin");

    else printf("Current User : %s",user.name);

    printf("\t\t\t\tDate : ");

    _strdate(date);

    date_output(date);

    printf("%s",date);

    _strdate(date);

    gotoxy(1,5);

      for(i=0;i<78;i++) printf("%c",196);

}
COORD coord = {0, 0};
void gotoxy (int x, int y)

        {

        coord.X = x+32;

        coord.Y = y+9; // X and Y coordinates

        SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);

        }

void Home(void)

{



   system("cls");

   char d[30]=" WELCOME TO OUR MICRO-PROJECT";
	char e[34]="Press any key to continue.........";

   char ch,pass[10];

   int i=0,j;
    gotoxy(15,10);
    for(j=0;j<25;j++)

    {

    delay(50);

    printf("%c",205);

    }
    for(j=0;j<30;j++)
   {
   delay(50);
   printf("%c",d[j]);
   }
 for(j=0;j<25;j++)
   {

   delay(50);

   printf("%c",205);

   }
   gotoxy(15,16);
   for(j=0;j<34;j++)

   {

   delay(50);

   printf("%c",e[j]);

   }
 getch();
}