MEPCO SCHLENK ENGINEERING COLLEGE, SIVAKASI

(An Autonomous Institution affiliated to Anna University, Chennai)

DEPARTMENT OF INFORMATION TECHMOLOGY

MINI PROJECT REPORT

13IT351 - OBJECT ORIENTED PROGAMMING USING C++

RAKHAV KRISHNA.G- <201406050>PAVITHRAN.S -<201406044>

KALYANA SUNDAR.G-<201406252>II – IT

1

MEPCO SCHLENK ENGINEERING COLLEGE, SIVAKASI

(An Autonomous Institution affiliated to Anna University, Chennai)VIRUDHUNAGAR DISTRICT, TAMILNADU

DEPARTMENT OF INFORMATION TECHMOLOGY

BONAFIDE CERTIFICATE

This is certify that it is the bonafide work done by RAKHAV KRISHNA.G, PAVITHRAN.S and KALYANA SUNDAR.G for mini project entitled ATM SYSTEM in object oriented programming(cs9) laboratory for the academic year 2015-2016

………………………………….. …………………………..

Mrs.Angela jennifa sujana Dr.Revathi

(Guide) (HOD/IT)

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TABLE OF CONENTS

S.NO TITLE PAGE NO

1 PROBLEM STATEMENT 5

2

2.1

2.2

2.2.1

2.2.2

2.2.3

2.2.4

2.3

2.3.1

2.3.1.1

2.3.1.2

2.3.1.3

2.3.1.4

2.3.1.5

2.3.1.6

SYSTEM MODEL

LIST OF MODELS

MODULE DESCRIPTION

INSERT

WITHDRAW

BALANCE ENQUIRY

DEPOSIT

CLASS DESCRIPTION

CLASS NOTATIONS

CLASS NAME 1

DATA MEMBER 1

MEMBER FUNCTION 1CLASS NAME 2

DATA MEMBER 2

MEMBER FUNCTION 2

6

6

6

6

6

6

6

7

7

7

7

8

8

8

8

3.

3.1

3.1.1

SYSTEM IMPLEMENTATION

CONCEPT

FILES

9

9

9

3

3.1.2

3.1.3

FRIEND FUNCTION

EXCEPTION HANDLING

10

10

4 CODING 11

5. OUTPUT 18

6. CONCLUSION 24

1.PROBLEM STATEMENT:

4

To write a project for ATM System in oops using C++. It should contain all the basic

transaction that occur in the ATM day to day life. The program must contain ten user accounts.

The user can use our ATM to withdraw money, check balance enquiry and deposit cash to his

account. Implement this using various C++ concepts like inheritance, files, exception handling,

friend function.

2.SYSTEM MODEL:

2.1 LIST OF MODULES: INSERTION WITHDRAW

5

BALANCE ENQUIRY DEPOSIT

2.2 MODULE DESCRIPTION:

2.2.1 INSERT:This function is used to insert the account details into the file. we will store the user name, user

PIN number for 10 user accounts. Then we will read it from the file to check the password for the

respective user.

2.2.2 WITHDRAW:

This function is used to withdraw the cash form the account. In this function we get the

amount to withdraw from the user account. Then we will deduce the withdrawn amount from the

balance of the account and current balance is shown. If anyone enter random value which is

other than multiples of 10 then it will deliver the message that the user should enter the

withdrawal amount in multiples of 10.

2.2.3 BALANCE ENQUIRY:

This function is used to display the balance in a account. In this function we will print the

user account number and account balance.

2.2.4 DEPOSIT:

This function is used to deposit cash in user account. In this function we will ask the

amount to be deposited. Then the amount will be credited in the account and the current balance is

shown.

2.3 CLASS DESCRIPTION:

2.3.1 CLASS NOTATIONS:

6

user

string nameint pin

User(string,int)Printdetails()

Friend int finding(user,user,int)

atm

int accntnoint balance

Void readdetails()Void checkbalance(int)Void withdrawcash()Void depositcash()

2.3.1.1 CLASS NAME 1:

user

2.3.1.2 DATA MEMBER 1:

name : It is used to store the name of the user

pin : It is used to store the pin number of the account

2.3.1.3 MEMBER FUNCTION 1:

User(string,int): It is a parameterized constructor

printdetails() : It is used to print account holder name and password “*”

Friend finding : It is used to check the user name and password

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2.3.1.4 CLASS NAME 2:

atm

2.3.1.5 DATA MEMBER 2:

accntno : It is used to represent the account number

balance : It is used to represent the balance

2.3.1.6 MEMBER FUNCTION 2:

Readdetails() : It is used to read the account details

Checkbalance() : It is used to check

withdrawcash() : It is used to debit cost from the balance

depositcash() : It is used to credit cost to the balance

3.SYSTEM IMPLEMENTATION

3.1 CONCEPT:

FILES

8

FRIEND FUNCTION

EXCEPTION HANDLING

3.1.1 FILES

File handling is the unique identification to describe the file. It is an index to the

array where the file related information is stored. One will be able to manipulate the content of

that file with such a file object handle ,which in our case, we will not directly operating.

To open a text file : ofstream object(“filename”);

Eg: ofstream entryfile(“linear.dat”);

To read a text file : ifstream object(“filename”);

Eg: ifstream disfile(“linear.dat”);

To open binary file : ofstream object(“filename”,modes);

To close binary file : filename.close();

The reading and writing operation in binary files are

Ofstream object.write((datatype *)&<the object>,sizeof(<the object>));

Eg: Ofstream outfile.write((char *) &b, sizeof(student));

Ifstream object.read((datatype *)&<the object>,sizeof(<the object>));

Eg: Ifstream outfile.read((char *) &b, sizeof(student));

3.1.2 FRIEND FUNCTION:

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Friend function can access private data members of class. The friend function are special

function. The class grants these function a special privilege to access it private variables.the

privilege must be give by the class itself.

SYNTAX:

Friend somefunction(list of argument);

EXAMPLE:

Friend display(person t);

3.1.3 EXCEPTION HANDLING

Exception handling is a method to reduce to error on input time. When exception

handling is in place, instead of providing normal means of execution when an exception occurs,

an alternative path of execution need to be provided. Exception handling is a mechanism to

generate and handle exceptions. In exception has three block

Try

Catch

Throw

3.1.3.1 TRY:

It indicates the program area where exception may arise or may be thrown

3.1.3.2 CATCH:

It is used to take an action path inspecific exception

3.1.3.3 THROW

It is used to throw exception

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4.CODING:

/*PROGRAM NAME: ATM system

PURPOSE: To maintain the bank account*/

#include<iostream>

#include<fstream>

#include<string>

#include<cstdio>

#include<exception>

#include<stdlib.h>

using namespace std;

class user

{

public:

string name;

int pin;

user(string tname="",int tpin='0')

{

name=tname;

pin=tpin;

}

void printdetails()

{

cout<<"\nAccount Holder Name is "<<name;

cout<<"\nPassword is ****";

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}

friend int finding(user u[10],user b,int n);

};

class atm:public user

{

public:

int accntno;

int balance;

void readdetails()

{

cout<<"\nEnter the Account Number";

cin>>accntno;

cout<<"\nEnter the Balance Initially";

cin>>balance;

}

void checkbalance(int e)

{

user u[10];

cout<<"\nBalance in the Account is "<<balance;

cout<<"\nAccount Number of Yours is"<<accntno;

}

void withdrawcash()

{

int withdraw;

cout<<"\nEnter the amount to be withdrawn";

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cin>>withdraw;

if(withdraw%100!=0)

cout<<"\nPlease Enter the amount to be withdrawn in multiples of 100";

else if(withdraw>balance)

cout<<"\nInsufficient Balance in your account";

else

{

balance=balance-withdraw;

cout<<"\nPlease collect the cash";

cout<<"\nYour Current Balance is "<<balance;

}

}

void depositcash()

{

int deposit;

cout<<"\nEnter the Amount To be Deposited";

cin>>deposit;

balance=balance+deposit;

cout<<"\nYour Current Balance is "<<balance;

}

};

int finding(user u[10],user b,int n)

{

int i;

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

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{

if(u[i].name==b.name && u[i].pin==b.pin)

{

return i;

break;

}

}

return -1;

}

int menu()

{

int i;

cout<<"\n\t\tWelcome to RAPASU ATM\t\t";

cout<<"\nEnter Your Choice\n\t1.Check Balance \n\t2.Withdraw Cash\n\t3.Deposit Cash \n\t4.To exit and to switch to other user\n\t5.To Exit Totally";

cin>>i;

return i;

}

main()

{

fstream file1("details.txt",ios::in|ios::out|ios::binary|ios::trunc);

int i,tpin,k=0,e,d,r=0;

int n=10;

char s;

atm c[10];

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string na;

int j[10];

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

{

j[i]=0;

}

user u[10]={

user("Rakhav",1234),user("Krishna",1235),user("Keshav",1236),user("Hari",1237),user("Riya",1238),user("Pavithran",1239),user("Sundhar",1240),user("Balan",1241),user("Karthik",1242),user("Vignesh",1243)};

user a[10];

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

{

file1.write((char *) &u[i],sizeof(user));

}

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

{

file1.seekg(i*sizeof(user),ios::beg);

file1.read((char *) &a[i],sizeof(user));

}

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

{

a[i].printdetails();

}

Rakhav:

15

cout<<"\nEnter the UserName";

cin>>na;

cout<<"\nEnter the pin";

cin>>tpin;

user b(na,tpin);

k=finding(a,b,n);

e=k;

try

{

if(k==-1)

throw 21;

}

catch(int)

{

cout<<"\nINVALID PASSWORD";

exit(0);

}

if(j[e]==0)

{

c[e].readdetails();

j[e]=j[e]+1;

}

do

{

loop: d=menu();

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switch(d)

{

case 1:

cout<<"\nAccount Holder Name is "<<na;

cout<<"\nPassword is ****";

c[k].checkbalance(e);

break;

case 2:

c[k].withdrawcash();

break;

case 3:

c[k].depositcash();

break;

case 4:

cout<<"\n\n\t\tThank You!!! for using our ATM\n\n";

goto Rakhav;

break;

case 5:

exit(0);

default:

cout<<"\nInvalid Entry!!";

goto loop;

break;

}

cout<<"\nDo you wish to have another transaction? (1/0)";

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cin>>r;

}while(r);

}

5.OUTPUT:SCREENSHOT :

18

19

20

21

22

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6.CONCLUSIONThus the project for ATM System in C++ using oops was implemented. It contains all the

basic transaction that occurred in atm day to day life. The program must contain ten user accounts.

The user can use our ATM to withdraw money, check balance enquiry and deposit cash to his

account. Implement this using various C++ concepts like inheritance, files, exception handling,

friend function.

24