ERROR CALCULATER IN C++

COPY THIS AND PASTE NOTEPADE FILE AND SAVE AS Bank.CPP AND RUN IT IN DEVC++ OR DOS BOX (FOR EINDOW 7 )
MS DOS FOR XP USER AND VISTA ALSO

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>

/* function prototype */
void xat(int x, int y);

/* horizontal text justification settings */
char *hjust[] = { "LEFT_TEXT",
 "CENTER_TEXT",
 "RIGHT_TEXT"
};

/* vertical text justification settings */
char *vjust[] = { "LEFT_TEXT",
 "CENTER_TEXT",
 "RIGHT_TEXT"
};

int main(void)
{
   /* request auto detection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy, hj, vj;
   char msg[80];

   /* initialize graphics and local variables */
   initgraph(&gdriver, &gmode, "");

   /* read result of initialization */
   errorcode = graphresult();
   if (errorcode != grOk)  /* an error occurred */
   {
      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to halt:");
      getch();
      exit(1); /* terminate with an error code */
   }

   midx = getmaxx() / 2;
   midy = getmaxy() / 2;

   /* loop through text justifications */
   for (hj=LEFT_TEXT; hj<=RIGHT_TEXT; hj++)
      for (vj=LEFT_TEXT; vj<=RIGHT_TEXT; vj++)
      {
cleardevice();
/* set the text justification */
settextjustify(hj, vj);

/* create a message string */
sprintf(msg, "%s  %s", hjust[hj], vjust[vj]);

/* create cross hairs on the screen */
xat(midx, midy);

/* output the message */
outtextxy(midx, midy, msg);
getch();
      }

   /* clean up */
   closegraph();
   return 0;
}

/* draw an "x" at (x, y) */
void xat(int x, int y)
{
  line(x-4, y, x+4, y);
  line(x, y-4, x, y+4);
}

A BIG BANK PROGRAMME IN C++ WITH GRAPHICS

COPY THIS AND PASTE NOTEPADE FILE AND SAVE AS Bank.CPP AND RUN IT IN DEVC++ OR DOS BOX (FOR EINDOW 7 )
MS DOS FOR XP USER AND VISTA ALSO









// Declaration of header files
#include <iostream.h>
#include <fstream.h>
#include <process.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <iomanip.h>
#include <graphics.h>


typedef char option[15];
const int ROW = 10,COL = 10;

int scan; // To hold the special characters for moving the prompt in menu
int ascii;

// To display the main menu options
option a[]= {
 "NewAccount",
"ListofAccounts",
"IndAccount",
"DailyTrans",
"MonthlyReport",
"EditAccount",
"Exit"};

// Displays the modify menu options
option b[] = {
"Modify Account",
"Closeaccount",
"Quit"
};

// Function used to do screening
class main_menu
{
int i,done;

public:
void normalvideo(int x,int y,char *str);
void reversevideo(int x,int y,char *str);
void box(int x1,int y1,int x2,int y2);
char menu();
void control_menu();
char e_menu();
void edit_menu();
void help(void);
};

/* Class member functions for drawing boxes */
class shape
{
public:
void line_hor(int, int, int, char);
void line_ver(int, int, int, char);
void box(int, int, int, int, char);
};


// Class contains the initial deposit of customers
class initial
{
public:
void add_to_file(int, char t_name[30], char t_address[30], float); // For initial deposits in customers account
void display_list(void); // Displaying customers account list
void delete_account(int); // Deleting customers account
void update_balance(int, char t_name[30], char t_address[30], float); // For updating the customer account
void modify(void);   // To modify the customer account information
int last_accno(void); // To know the last account number
int found_account(int); // To found the account is in "INITIAL.dat" or not

char *return_name(int); // Function for validation entry of customer name
char *return_address(int); // Function for validation entry of customer address
float give_balance(int); // To print the balance amount of a particular customer
int recordno(int);
void display(int); // To display the customer account

private:
void modify_account(int, char t_name[30], char t_address[30]); // Function to modify the customer account
int accno;
char name[30], address[30];
float balance;
};

// Class contains the customers daily transaction entry

class account
{
public:
void new_account(void);  // Function to create a new account
void close_account(void); // Function to close an account
void display_account(void); // Function to display the accounts
void transaction(void); // To display the transaction process
void clear(int, int); // Function to perform a clear screen function
void month_report(void); // Function to list monthWise transaction report

private:
void add_to_file(int, int, int, int, char, char t_type[10], float, float, float); // Function to add transaction records
void delete_account(int); // Function to delete a transaction record
int no_of_days(int, int, int, int, int, int); // Function to find the total days
float calculate_interest(int, float); // Function for calculating interest of an account
void display(int); // Function to display a transaction account
void box_for_display(int); // Function for displaying box
int accno;
char type[10]; // Account type as Cheque or Cash
int dd, mm, yy; // To store the system date/ Enter date
char tran; // As the account type is Deposit or Withdraw
float interest, amount, balance;
};

// Function to displays all the menu prompt messages from the pointer array of option a[]
void main_menu::normalvideo(int x,int y,char *str)
{
   gotoxy(x,y);
   cprintf("%s",str);
}

// Function to move the cursor on the menu prompt with a reverse video color
void main_menu::reversevideo(int x,int y,char *str)
{
textcolor(5+143);
textbackground(WHITE);
gotoxy(x,y);
cprintf("%s",str);
textcolor(GREEN);
textbackground(BLACK);
}

void main_menu::box(int x1,int y1,int x2,int y2)
{
for(int col=x1;col<x2;col++)
{
  gotoxy(col,y1);
  cprintf("%c",196);
  gotoxy(col,y2);
  cprintf("%c",196);
}

for(int row=y1;row<y2;row++)
{
  gotoxy(x1,row);
  cprintf("%c",179);
  gotoxy(x2,row);
  cprintf("%c",179);
}
gotoxy(x1,y1);
cprintf("%c",218);
gotoxy(x1,y2);
cprintf("%c",192);
gotoxy(x2,y1);
cprintf("%c",191);
gotoxy(x2,y2);
cprintf("%c",217);
}

char main_menu::menu()
{
clrscr();

textcolor(22);
box(20, 6, 65, 20);
box(18, 4, 67, 22);
textcolor(5+143);
gotoxy(36, 5);
textbackground(BLUE);
cprintf("B A N K I N G");
textbackground(BLACK);
textcolor(22);
for(i = 1; i < 7; i++)
normalvideo(32, i+10, a[i]);
reversevideo(32, 10, a[0]);
i = done = 0;
_setcursortype(_NOCURSOR);
do
{
int key = getch();
switch (key)
{
case 00:
key = getch();
switch (key)
{
case 72:
normalvideo(32, i+10, a[i]);
i--;
if (i == -1)
i = 6;
reversevideo(32,i+10,a[i]);
break;
case 80:
normalvideo(32, i+10, a[i]);
i++;
if (i == 7)
i = 0;
reversevideo(32, i+10, a[i]);
break;
}
break;
case 13:
done = 1;
}
}
while (!done);
_setcursortype(_NOCURSOR);
return(i+49);
}

void main_menu::control_menu()
{

char choice;
account a;

do
{
choice = menu();
clrscr();
switch (choice)
{
case '1':
_setcursortype(_NORMALCURSOR);
box(3, 1, 75, 24);
box(5, 2, 73, 23);

a.new_account(); // New account member function
break;
case '2':
box(3, 1, 75, 24);
box(5, 2, 73, 23);
initial ini;
ini.display_list(); // Glogal list of account function
break;
case '3':
box(3, 1, 75, 24);
box(5, 2, 73, 23);

_setcursortype(_NORMALCURSOR);
a.display_account(); // Displaying individual accounts all transactions
break;
case '4':
box(3, 1, 75, 24);
box(5, 2, 73, 23);

account a;
_setcursortype(_NORMALCURSOR);
a.transaction(); // Daily transaction for individual account
break;
case '5':
box(3, 1, 75, 24);
box(5, 2, 73, 23);

_setcursortype(_NORMALCURSOR);
a.month_report(); // Monthly report for any account
break;
case '6':
box(3, 1, 75, 24);
box(5, 2, 73, 23);
gotoxy(10,10);
edit_menu(); // Sub menu for modifying or deleting any account
break;
case '7' :exit(0);
  }
 } while (choice != 6);
}


char main_menu::e_menu()
{
clrscr();

textcolor(22);
box(25,6,60,15);
box(23,4,62,17);
textcolor(5+143);

gotoxy(34,5);
textbackground(GREEN);
cprintf("E D I T  -  M E N U");
textcolor(22);
textbackground(BLACK);
for (i = 1;i < 3; i++)
normalvideo(32, i+10, b[i]);

reversevideo(32, 10, b[0]);
i = done = 0;

_setcursortype(_NOCURSOR);
do
{
int key = getch();
switch (key)
{
case 00:
key = getch();
switch (key)
{
case 72:
normalvideo(32, i+10, b[i]);
i--;
if (i == -1)
i = 2;
reversevideo(32, i+10, b[i]);
break;
case 80:
normalvideo(32, i+10, b[i]);
i++;
if (i == 3)
i=0;
reversevideo(32, i+10, b[i]);
break;
}
break;
case 13:
done = 1;
}
}
while (!done);
_setcursortype(_NOCURSOR);
return(i+49);
}


void main_menu::edit_menu()
{

char choice;
account a;

do
{
choice = e_menu();
clrscr();
switch (choice)
{
case '1':
box(3, 1, 75, 24);
box(5, 2, 73, 23);
initial ini;
_setcursortype(_NORMALCURSOR);
ini.modify();
break;

case '2':
box(3, 1, 75, 24);
box(5, 2, 73, 23);
account a;
_setcursortype(_NORMALCURSOR);
a.close_account();
break;
case '3':
return;
}
} while (choice != 6);
}

void shape::line_hor(int column1, int column2, int row, char c)
{
for (column1; column1 <= column2; column1++)
{
gotoxy(column1, row);
cout << c;
}
}

/* Function to draw vertical line
 This public function draws one vertical line at a time */
void shape::line_ver(int row1, int row2, int column, char c)
{
for (row1; row1 <= row2; row1++)
{
gotoxy(column, row1);
cout << c;
}
}

/* Function for drawing box
 This function draws a box for menus */
void shape::box(int column1, int row1, int column2, int row2, char c)
{
char ch = 218;
char c1, c2, c3, c4;
char l1 = 196, l2 = 179;
if (c == ch)
{
c1 = 218;
c2 = 191;
c3 = 217;
c4 = 217;
l1 = 196;
l2 = 179;
}
else
{
c1 = c;
c2 = c;
c3 = c;
c4 = c;
l1 = c;
c2 = c;
}
gotoxy(column1, row1);
cout << c1;
gotoxy(column2, row1);
cout << c2;
gotoxy(column1, row2);
cout << c3;
gotoxy(column2, row2);
cout << c4;
column1++;
column2--;
line_hor(column1, column2, row1, l1); //Horizontal line
line_hor(column1, column2, row2, l1);
column1--;
column2++;
row1++;
row2--;
line_ver(row1, row2, column1, l2); // Vertical line
line_ver(row1, row2, column2, l2);
}


void main_menu::help(void)
{
clrscr();

setbkcolor(7);
settextstyle(7,HORIZ_DIR,5);
outtextxy(70,20,"Welcome to Banking Project");
settextstyle(2,HORIZ_DIR,5);
outtextxy(60,100, "This project your can keep record of daily banking transaction");
delay(2);
outtextxy(60,130, "This program is capable of holding any no. of account.");
delay(2);
outtextxy(60,160, "-In first option you can open new account");
delay(2);
outtextxy(60,190, "-In second option you can see the list of all the accounts");
delay(2);
outtextxy(60,220,"-In third option you can see all the transaction of individual account");
delay(2);
outtextxy(60,250, "-Through fourth optiion you can do banking transactions");
delay(2);
outtextxy(60,280, "(Deposit/Withdraw)");
delay(2);
outtextxy(60,310, "-In fifth option you can take monthWise individual account report");
delay(2);
outtextxy(60,340,"-In sixth option you can modify or delete any account");
delay(2);
outtextxy(60,370, "Note-: Opening amount should not less that Rs. 500/-");
delay(2);
outtextxy(60,400, "-And last option is Quit (Exit to Window)");
delay(2);

settextstyle(7,HORIZ_DIR,4);
outtextxy(80,420,"Press any key to continue...");
getch();

}

void initial::modify(void)
{
clrscr();
int j;
char t_acc[10];
int t, t_accno;
gotoxy(17, 1);
cout << "<0>=Exit";
gotoxy(5,5);
cout << "Enter the account no. ";
gets(t_acc);
t = atoi(t_acc);
t_accno = t;
if (t_accno == 0)
return;
clrscr();
if (!found_account(t_accno))
{
gotoxy(5, 5);
cout << "\7Account not found";
getch();
return;
}
gotoxy(71, 1);
cout << "<0>=Exit";
textbackground(WHITE);
gotoxy(3, 3);
for (j = 1; j<= 76; j++)
cprintf(" ");
textbackground(BLACK);
textcolor(BLACK+BLINK);
textbackground(WHITE);
gotoxy(30, 3);
cprintf("Modify Account Screen");
textcolor(LIGHTGRAY);
textbackground(BLACK);
int d1, m1, y1;
struct date d; // For extracting system date
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
gotoxy(4, 2);
cout << "Date: " << d1 << "/" << m1 << "/" << y1;
char ch;
display(t_accno);
account a;
do
{
a.clear(5, 13);
gotoxy(5, 13);
cout << "Modify this account <y/n>: ";
ch = getche();
if (ch == '0')
return;
ch = toupper(ch);
}while (ch != 'N' && ch != 'Y');
if (ch == 'N')
return;
int modified = 0, valid;
char t_name[30], t_address[30];
gotoxy(5, 15);
cout << "Name : ";
gotoxy(5, 16);
cout << "Address : ";

do
{
a.clear(15, 15);
a.clear(5, 23);
gotoxy(5, 23);
cout << "Enter Name or Press Enter for No Change";
valid = 1;
gotoxy(15, 15);
gets(t_name);
strupr(t_name);
if (t_name[0] == '0')
return;
if (strlen(t_name) > 25)
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Name should not greater than 25");
getch();
}
} while (!valid);

do
{
a.clear(15, 16);
a.clear(5, 23);
gotoxy(5, 23);
cout << "Enter Address or press enter for no Change";
valid = 1;
gotoxy(15, 16);
gets(t_address);
strupr(t_address);
if (t_address[0] == '0')
return;
if (strlen(t_address) > 25)
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Address should not greater than 25");
getch();
}
}while (!valid);

if (strlen(t_address) > 0)
modified = 1;
if (!modified)
return;
// clears the screen at 23rd row and from 5th column
a.clear(5,23);

do
{
a.clear(5, 23);
gotoxy(5, 18);
cout << "Do you want to save Changes <Y/N>: ";
ch = getche();
if (ch == '0')
return;
ch = toupper(ch);
}while (ch != 'N' && ch != 'Y');

if (ch == 'N')
return;

// Passes the parameter to add in data file
modify_account(t_accno, t_name, t_address);
gotoxy(5, 21);
cout << "\7Record modified";
gotoxy(5, 23);
cout << "Press any key to continue...";
getch();
}


void initial::display(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);

// Displays the record contents matching with t_accno from INITIAL.dat data file
while (file.read((char *)this, sizeof(initial)))
{
if (t_accno == accno)
{
gotoxy(8, 5);
cout << "Account no. " << accno;
gotoxy(10, 8);
cout << "Name : ";
puts(name);
gotoxy(10, 9);
cout << "Address : ";
puts(address);
gotoxy(10, 10);
cout << "Balance : " << setw(15)    // setwidth
<< setprecision(2)    // set position of decimal point
<< setiosflags(ios::left)   // set left justified output
<< setiosflags(ios::showpoint)  // always show decimal point
<< setiosflags(ios::fixed)    // set fixed notation for display
<< balance;
break;
}
}
file.close();
}


void initial::modify_account(int t_accno, char t_name[30], char t_address[30])
{
int recno;
recno = recordno(t_accno);
fstream file;
file.open("INITIAL.dat", ios::out|ios::ate);
strcpy(name, t_name);
strcpy(address, t_address);
int location;
// finds the position in data file

location = (recno-1) * sizeof(initial);
file.seekp(location);

// Overwrites the modified record into INITIAL.dat data file
file.write((char *)this, sizeof(initial));
file.close();
return;
}

int initial::last_accno(void)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
int count = 0;

// Founds the last account no.
while (file.read((char *)this, sizeof(initial)))
count = accno;
file.close();
return count;
}

void initial::add_to_file(int t_accno, char t_name[30], char t_address[30], float t_balance)
{
accno = t_accno;
strcpy(name, t_name);
strcpy(address, t_address);
balance = t_balance;
fstream file;

// Appends new account record with the balance into INITIAL.dat data file
file.open("INITIAL.dat", ios::out|ios::app);
file.write((char *)this, sizeof(initial));
file.close();
}
// Function for deleting a account from INITIAL.dat file
// This function is used to delete any account from data file. By this function
void initial::delete_account(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
fstream temp;
temp.open("TEMP.dat", ios::out);
file.seekg(0,ios::beg);

// Uses a copy method to delete the account from INTITAL.dat data file
while (!file.eof())
{
file.read((char *)this, sizeof(initial));
if (file.eof())
break;
if (accno != t_accno)
temp.write((char *)this, sizeof(initial));
}
file.close();
temp.close();
file.open("INITIAL.dat", ios::out);
temp.open("TEMP.dat", ios::in);
temp.seekg(0, ios::beg);

// Copy the TEMP.dat contents into INTITAL.dat data file
while (!temp.eof())
{
temp.read((char *)this, sizeof(initial));
if (temp.eof())
break;
if (accno != t_accno)
file.write((char *)this, sizeof(initial));
}
file.close();
temp.close();
}

void account::add_to_file(int t_accno, int d1, int m1, int y1, char t_tran, char t_type[10], float t_interest, float t_amount, float t_balance)
{
fstream file;
file.open("BANKING.dat", ios::app);
accno = t_accno;
getch();
dd = d1;
mm = m1;
yy = y1;
tran = t_tran;
strcpy(type, t_type);
interest = t_interest;
amount = t_amount;
balance = t_balance;

// Appends the transaction record into BANKING.dat data file
file.write((char *)this, sizeof(account));
file.close();
}


void account::delete_account(int t_accno)
{
fstream file;
file.open("BANKING.dat", ios::in); // Open to read records
fstream temp;
temp.open("TEMP.dat", ios::out); // Open to write records
file.seekg(0, ios::beg); // Positioned from begining of the file

// Uses the copy method for deleting the transaction record from BANKING.dat data file
while (!file.eof())
{
file.read((char *)this, sizeof(account));
if (file.eof())
break;
if (accno != t_accno)
temp.write((char *)this, sizeof(account));
}
file.close();
temp.close();
file.open("BANKING.dat", ios::out);
temp.open("TEMP.dat", ios::in);
temp.seekg(0, ios::beg);

// Uses copy method to transfer the record from TEMP.dat file to BANKING.dat data file
while (!temp.eof())
{
temp.read((char *)this, sizeof(account));
if (temp.eof())
break;
if (accno != t_accno)
file.write((char *)this, sizeof(account));
}
file.close();
temp.close();
}

void initial::display_list(void)
{
clrscr();
int flag;
float t_bal = 0.0;
fstream file;
gotoxy(25,2);

cout << "Accounts List in Bank";
gotoxy(25, 3);
cout << "=====================";
int d1, m1, y1;
struct date d; // For extracting system date
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
gotoxy(62, 3);
cout << "Date: " << d1 << "/" << m1 << "/" << y1;
gotoxy(1, 4);
for (int j = 1; j <= 79; j++)
cout << "=";

gotoxy(1, 5);
cout << "Accno#";
gotoxy(10,5);
cout << "Name";
gotoxy(30,5);
cout << "Address";
gotoxy(65,5);
cout << "Balance";
gotoxy(1, 6);
for (j = 1; j <= 79; j++)
cout << "=";
file.open("INITIAL.dat", ios::in);
file.seekg(0,ios::beg);
int row = 7;

// Reads all the records to display on the screen
while (file.read((char *)this, sizeof(initial)))
{
flag = 0;
delay(2);
gotoxy(3, row);
cout << accno;
gotoxy(10, row);
puts(name);
gotoxy(30, row);
puts(address);
gotoxy(65, row);

cout <<  setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< balance;
t_bal = t_bal + balance;
row++;
if (row > 23)
{
flag = 1;
row = 6;
gotoxy(4, 24);
cout << "Press any key to continue.... ";
getch();
clrscr();
}
}

gotoxy(1, row);
for (j = 1; j <= 79; j++)
cout << "=";
row++;
gotoxy(3, row);
cout << "Total Balance in Bank is : ";
gotoxy(65, row);

cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< t_bal;

file.close();
if (!flag)
{
gotoxy(4, 24);
cout << "Press any key to continue...";
getch();
}
}

void account::clear(int col, int row)
{
for (int j = col; j <= 79; j++)
{
gotoxy(j, row);
cout << " ";
}
}

int initial::found_account(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
int found = 0;

// Searches the specified record in INITIAL.dat data file
while (file.read((char *)this, sizeof(initial)))
{
if (accno == t_accno)
{
found = 1;
break;
}
}
file.close();
return found;
}

char *initial::return_name(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
char t_name[30];

// Return the name to display at report screen if found
while (file.read((char *)this, sizeof(initial)))
{
if (accno == t_accno)
{
strcpy(t_name, name);
break;
}
}
file.close();
return t_name;
}

char *initial::return_address(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
char t_address[30];

// Return the address to display at report screen if found
while (file.read((char *)this, sizeof(initial)))
{
if (accno == t_accno)
{
strcpy(t_address, address);
break;
}
}
file.close();
return t_address;
}

void account::box_for_display(int t_accno)
{
int d1, m1, y1;
struct date d;
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
gotoxy(63, 2);
cout << "Date: " << d1 << "/" << m1 << "/" << y1;
gotoxy(4, 2);
cout << "Account No. " << t_accno;

initial ini;

char t_name[30];
strcpy(t_name, ini.return_name(t_accno));

char t_address[30];
strcpy(t_address, ini.return_address(t_accno));

gotoxy(25, 2);
cout << t_name;
gotoxy(25, 3);
cout << t_address;
gotoxy(4, 5);
cout << "Global Report of Account";
textbackground(WHITE);
textcolor(BLACK);
textbackground(WHITE);
gotoxy(1, 6);
for (int i = 1; i <=79; i++)
cout << "=";
gotoxy(4, 7);
cprintf("Date       Particular   Deposit      Withdraw                Balance");
gotoxy(1, 8);
for (i = 1; i <=79; i++)
cout << "=";
textcolor(LIGHTGRAY);
textbackground(BLACK);
}

void account::display_account(void)
{
clrscr();
char t_acc[10];
int j;
int tamt = 0, damt = 0, wamt = 0;
int t, t_accno;
gotoxy(71, 1);
cout << "<0>=Exit";
gotoxy(5, 5);
cout << "Enter account no. ";
gets(t_acc);
t = atoi(t_acc);
t_accno = t;
if (t_accno == 0)
return;
clrscr();
initial ini;
if (!ini.found_account(t_accno))
{
gotoxy(5, 5);
cout << "\7Account not found";
getch();
return;
}

// Display the heading from this function
box_for_display(t_accno);

int row = 9, flag;
fstream file;
file.open("BANKING.dat", ios::in);
while (file.read((char *)this, sizeof(account)))
{
if (accno == t_accno)
{
flag = 0;
delay(2);
gotoxy(4, row);
cout << dd << "-" << mm << "-" << yy;
gotoxy(16, row);
puts(type);
if (tran == 'D')
{
damt = damt + amount;
tamt = tamt + amount;
gotoxy(30, row);
}
else
{
wamt = wamt + amount;
tamt = tamt - amount;
gotoxy(42, row);
}

cout <<  setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< amount;

gotoxy(66, row);
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< balance;

row++;
if (row > 23)
{
flag = 1;
row = 7;
gotoxy(4, 24);
cout << "Press any key to continue";
getch();
clrscr();
box_for_display(t_accno);
}
}
}
file.close();
gotoxy(1, row);
for (j = 1; j <= 79; j++)
cout << "=";
row++;
gotoxy(4, row);
cout << "Total-->:";
gotoxy(30, row);
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< damt;
gotoxy(42, row);
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< wamt;
gotoxy(66, row);
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< tamt;
if (!flag)
{
gotoxy(4, 24);
cout << "Press any key to continue...";
getch();
}
}


void account::month_report(void)
{

int dd1, mm1, yy1;
clrscr();
gotoxy(10, 5);
cout << "Enter any date of a month ";
gotoxy(38, 5);
cin >> dd1;
gotoxy(40, 5);
cout << "-";
gotoxy(41, 5);
cin >> mm1;
gotoxy(43, 5);
cout << "-";
gotoxy(44, 5);
cin >> yy1;
clrscr();
char t_acc[10];
int j;
int tamt = 0, damt = 0, wamt = 0;
int t, t_accno;
gotoxy(71, 1);
cout << "<0>=Exit";
gotoxy(5, 5);
cout << "Enter account no. ";
gets(t_acc);
t = atoi(t_acc);
t_accno = t;
if (t_accno == 0)
return;
clrscr();
initial ini;
if (!ini.found_account(t_accno))
{
gotoxy(5, 5);
cout << "\7Account not found";
getch();
return;
}
box_for_display(t_accno);
gotoxy(4, 5);
cout << "Statement Month: " << dd1 << "/" << mm1 << "/" << yy1;
getch();

int row = 9, flag;
fstream file;
file.open("BANKING.dat", ios::in);
float pre_balance = 0.0; // Previous balance amount

// The loop finds the last months balance
while (file.read((char *)this, sizeof(account)))
{
// Checks the account no. and till the previous month and till current year
if ((accno == t_accno) && ((mm < mm1 && yy <= yy1) || (mm1 < mm && yy < yy1)))
{
pre_balance = balance;
}
}

file.close();
file.open("BANKING.dat", ios::in);
gotoxy(54, row);

cout << "B/F ....    " << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< pre_balance;
row++;

// The loop displays the current months transaction after previous month
while (file.read((char *)this, sizeof(account)))
{
if ((accno == t_accno) && (mm1 == mm && yy1 <= yy))
{
flag = 0;
delay(2);
gotoxy(4, row);
cout << dd << "-" << mm << "-" << yy;
gotoxy(16, row);
puts(type);
if (tran == 'D')
{
damt = damt + amount;
tamt = tamt + amount;
gotoxy(30, row);
}
else
{
wamt = wamt + amount;
tamt = tamt - amount;
gotoxy(42, row);
}

cout <<  setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< amount;

gotoxy(66, row);
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< balance;
row++;

// If row increases 23 then the next screen continues
if (row > 23)
{
flag = 1;
row = 7;
gotoxy(4, 24);
cout << "Press any key to continue";
getch();
clrscr();
box_for_display(t_accno);
}
}
}
file.close();
gotoxy(1, row);
for (j = 1; j <= 79; j++)
cout << "=";
row++;

gotoxy(4, row);
cout << "Total-->:";
gotoxy(30, row);

// Deposited amount
cout << setw(15)    // setwidth
<< setprecision(2)    // set position of decimal point
<< setiosflags(ios::left)   // set left justified output
<< setiosflags(ios::showpoint)  // always show decimal point
<< setiosflags(ios::fixed)    // set fixed notation for display
<< damt;

gotoxy(42, row);
// Withdraw amount
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< wamt;

gotoxy(66, row);
tamt = tamt + pre_balance;
// Balance amount
cout << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< tamt;

if (!flag)
{
gotoxy(4, 24);
cout << "Press any key to continue...";
getch();
}

}


void account::new_account(void)
{
char ch;
int i, valid;
clrscr();
initial ini;

shape s;
s.box(2, 1, 79, 25, 218);
s.box(25, 2, 54, 4, 219);

gotoxy(65, 2);
cout << "<0>=Exit";
gotoxy(3,3);
for (i = 1; i<= 76; i++)
cprintf(" ");
textbackground(BLACK);
textcolor(BLACK+BLINK);
textbackground(WHITE);
gotoxy(30, 3);
cprintf("Open New Account");
textcolor(LIGHTGRAY);
textbackground(BLACK);
int d1, m1, y1;
struct date d; // For extracting system date
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
int t_accno;
t_accno = ini.last_accno();
t_accno++;

// Appends and deletes a false record to create primary position in data files
if (t_accno == 1)
{
ini.add_to_file(t_accno, "abc", "xyz", 1.1);
ini.delete_account(t_accno);
add_to_file(t_accno, 1, 1, 1997, 'D', "INITIAL", 1.1, 1.1, 1.1);
delete_account(t_accno);
}
char t_name[30], t[10], t_address[30];
float t_bal = 0.0, t_balance = 0.0;
gotoxy(5, 6);
cout << "Date: " << d1 << '/' << m1 << '/' << y1;
gotoxy(5, 8);
cout << "Account No # " << t_accno;
gotoxy(5, 10);
cout << "Name : ";
gotoxy(5, 11);
cout << "Address : ";
gotoxy(5, 12);
cout << "Name of verifying Person : ";
gotoxy(5, 14);
cout << "Initial Deposit : ";

do
{
clear(15, 10);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter Name of the Person";
valid = 1;
gotoxy(15, 10);
gets(t_name);
strupr(t_name);
if (t_name[0] == '0')
return;
if (strlen(t_name) == 0 || strlen(t_name) > 25)
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Name should not greater than 25");
getch();
}
}while (!valid);

do
{
clear(25, 15);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter Address of the Person ";
valid = 1;
gotoxy(15, 11);
gets(t_address);
strupr(t_address);
if (t_address[0] == '0')
return;
if (strlen(t_address) == 0 || strlen(t_address) > 25)
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Address should not greater than 25");
getch();
}
}while (!valid);

do
{
char vari[30];
clear(13, 12);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter name of the varifying Person ";
valid = 1;
gotoxy(31, 12);
gets(vari);
strupr(vari);
if (vari[0] == '0')
return;
if (strlen(vari) == 0 || strlen(vari) > 25)
{
valid = 0;
gotoxy(5, 23);
cprintf("Should not blank or greater than 25");
getch();
}
}while (!valid);

do
{
clear(13, 12);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter initial amount to be deposit ";
valid = 1;
gotoxy(23, 14);
gets(t);
t_bal = atof(t);
t_balance = t_bal;
if (t[0] == '0')
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Should not less than 500");
getch();
}
}while (!valid);
clear(5, 23);

do
{
clear(5, 17);
valid = 1;
gotoxy(5, 17);
cout << "Do you want to save the record <Y/N>: ";
ch = getche();
if (ch == '0')
return;
ch = toupper(ch);
}while (ch != 'N' && ch != 'Y');

if (ch == 'N')
return;
float t_amount, t_interest;
t_amount = t_balance;
t_interest = 0.0;
char t_tran, t_type[10];
t_tran = 'D';
strcpy(t_type, "INITIAL");

// Appends the records contents into both INITIAL.dat and BANKING.dat data files
ini.add_to_file(t_accno, t_name, t_address, t_balance);
add_to_file(t_accno, d1, m1, y1, t_tran, t_type, t_interest, t_amount, t_balance);
}


float initial::give_balance(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
float t_balance;

// Gives the last balance of an individual account
while (file.read((char *)this, sizeof(initial)))
{
if (accno == t_accno)
{
t_balance = balance;
break;
}
}
file.close();
return t_balance;
}

int initial::recordno(int t_accno)
{
fstream file;
file.open("INITIAL.dat", ios::in);
file.seekg(0, ios::beg);
int count = 0;

// Finds the record position in INITIAL.dat data file
while (file.read((char *)this, sizeof(initial)))
{
count++;
if (t_accno == accno)
break;
}
file.close();
return count;
}

void initial::update_balance(int t_accno, char t_name[30], char t_address[30], float t_balance)
{
int recno;
recno = recordno(t_accno);
fstream file;
file.open("INITIAL.dat", ios::out|ios::ate);
strcpy(name, t_name);
strcpy(address, t_address);
balance = t_balance;
int location;
location = (recno-1) * sizeof(initial); // Find the location in file
file.seekp(location); // Searches the insertion position in data file

// Updates the balance amount in INITIAL.dat data file
file.write((char *)this, sizeof(initial));
file.close();
}


int account::no_of_days(int d1, int m1, int y1, int d2, int m2, int y2)
{
static int month[] = {31, 28, 31, 30, 31, 30, 31, 30, 31, 30, 31, 30};
int days = 0;
while (d1 != d2 || m1 != m2 || y1 != y2)
{
days++;
d1++;
if (d1 > month[m1-1])
{
d1 = 1;
m1++;
}
if (m1 > m2)
{
m1 = 1;
y1++;
}
}
return days;
}


float account::calculate_interest(int t_accno, float t_balance)
{
fstream file;
file.open("BANKING.dat", ios::in);
file.seekg(0, ios::beg);
int d1, m1, y1, days;
while (file.read((char *)this, sizeof(account)))
{
if (accno == t_accno)
{
d1 = dd;
m1 = mm;
y1 = yy;
break;
}
}
int d2, m2, y2;
struct date d;
getdate(&d);
d2 = d.da_day;
m2 = d.da_mon;
y2 = d.da_year;
float t_interest = 0.0;
if ((y2 < y1) || (y2 == y1 && m2 < m1) || (y2 == y1 && m2 == m1) && (d2 < d1))
return t_interest;
days = no_of_days(d1, m1, y1, d2, m2, y2);
int months = 0;
if (days > 30)
{
months = days / 30;
t_interest = ((t_balance*2)/100 * months);
}
file.close();
return t_interest;
}


void account::transaction(void)
{
clrscr();
char t_acc[10];
int t, t_accno, valid;
gotoxy(71,1);
cout << "<0>=Exit";
gotoxy(5, 5);
cout << "Enter the account no. ";
gets(t_acc);
t = atoi(t_acc);
t_accno = t;
if (t_accno == 0)
return;
clrscr();
initial ini;
if (!ini.found_account(t_accno))
{
gotoxy(5, 5);
cout << "\7Account not found";
getch();
return;
}
gotoxy(71, 1);
cout << "<0>=Exit";
gotoxy(3, 3);
for (int i = 1; i <= 76; i++)
cprintf(" ");
textbackground(BLACK);
textcolor(BLACK+BLINK);
textbackground(WHITE);
gotoxy(29, 3);
cprintf ("Transaction in Account");
textcolor(LIGHTGRAY);
textbackground(BLACK);
int d1, m1, y1;
struct date d;
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
gotoxy(5, 6);
cout << "Date: " << d1 << "/" << m1 << "/" << y1;
gotoxy(5, 8);
cout << "Accnount no. " << t_accno;
char t_name[30];
char t_address[30];
float t_balance;
strcpy(t_name, ini.return_name(t_accno));
strcpy(t_address, ini.return_address(t_accno));
t_balance = ini.give_balance(t_accno);
gotoxy(27, 11);
cout << "Name : " << t_name;
gotoxy(27, 12);
cout << "Address : " << t_address;

gotoxy(5, 15);
cout << "Last balance Rs. " << setw(15)
<< setprecision(2)
<< setiosflags(ios::left)
<< setiosflags(ios::showpoint)
<< setiosflags(ios::fixed)
<< t_balance;

char t_tran, t_type[10], tm[10];
float t_amount, t_amt;

do
{
clear(5, 10);
valid = 1;
gotoxy(5, 10);
cout << "Deposit or Withdraw (D/W) : ";
t_tran = getch();
if (t_tran == '0')
return;
t_tran = toupper(t_tran);
}while (t_tran != 'D' && t_tran != 'W');

do
{
clear(5, 19);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter Transaction by Cash or Cheque ";
valid = 1;
gotoxy(5, 19);
cout << "Cash/Cheque : ";
gets(t_type);
strupr(t_type);
if (t_type[0] == '0')
return;
if (strcmp(t_type, "CASH") && strcmp(t_type, "CHEQUE"))
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Enter correctly");
getch();
}
}while (!valid);

do
{
clear(5, 21);
clear(5, 23);
gotoxy(5, 23);
cout << "Enter Amount for Transaction ";
valid = 1;
gotoxy(5, 21);
cout << "Amount Rs. ";
gets(tm);
t_amt = atof(tm);
t_amount = t_amt;
if (tm[0] == '0')
return;
if ((t_tran == 'W' && t_amount > t_balance) || (t_amount < 1))
{
valid = 0;
gotoxy(5, 23);
cprintf("\7Invalid Data entered");
getch();
}
}while (!valid);

char ch;
clear(5, 23);
do
{
clear(20, 23);
valid = 1;
gotoxy(40, 20);
cout << "Save Transaction <Y/N> : ";
ch = getche();
if (ch == '0')
return;
ch = toupper(ch);
}while (ch != 'N' && ch != 'Y');
if (ch == 'N')
return;
float t_interest;

t_interest = calculate_interest(t_accno, t_balance);

if (t_tran == 'D')
t_balance = t_balance + t_amount + t_interest;
else
t_balance = (t_balance - t_amount) + t_interest;

// Modified records are updated in data bases.
ini.update_balance(t_accno, t_name, t_address, t_balance);
add_to_file(t_accno, d1, m1, y1, t_tran, t_type, t_interest, t_amount, t_balance);
}


void account::close_account(void)
{
clrscr();
char t_acc[10];
int t, t_accno;
gotoxy(71, 1);
cout << "<0>=Exit";
gotoxy(5, 5);
cout << "Enter the account no. ";
gets(t_acc);
t = atoi(t_acc);
t_accno = t;
if (t_accno == 0)
return;
clrscr();
initial ini;
if (!ini.found_account(t_accno))
{
gotoxy(5, 5);
cout << "\7Account not found ";
getch();
return;
}
gotoxy(71, 1);
cout << "<0>=Exit";
gotoxy(3, 3);
textbackground(WHITE);
for (int i = 1; i <= 76; i++)
cprintf(" ");
textbackground(BLACK);
textcolor(BLACK+BLINK);
textbackground(WHITE);
gotoxy(30, 3);
cprintf("Close account screen");
textcolor(LIGHTGRAY);
textbackground(BLACK);
int d1, m1, y1;
struct date d;
getdate(&d);
d1 = d.da_day;
m1 = d.da_mon;
y1 = d.da_year;
gotoxy(5, 6);
cout << "Date: " << d1 << "/" << m1 << "/" << y1;
char ch;
ini. display(t_accno);
do
{
clear(5, 15);
gotoxy(5, 15);
cout << "Close this account <y/n?? ";
ch = getche();
if (ch == '0')
return;
ch = toupper(ch);
}while (ch != 'N' && ch != 'Y');
if (ch == 'N')
return;

// Function calls to delete the existing account no.
ini.delete_account(t_accno);
delete_account(t_accno);
gotoxy(5, 20);
cout << "\7Account Deleted";
gotoxy(5, 23);
cout << "Press any key to continue...";
getch();
}

// Main program logic which control the class members and member functions.
void main(void)
{
main_menu  m_menu;
int gdriver = DETECT, gmode, errorcode;
initgraph(&gdriver, &gmode, "");

m_menu.help();
closegraph();
m_menu.control_menu();
}