Assignment's Objective:

The objective of this assignment is to test the student's understanding and mastery of object$-$oriented

programming concepts such as abstraction$,$ encapsulation, polymorphism, inheritance, association,

aggregation, and composition which they have learnt throughout the semester. There are no restrictions

in the assignment as what data type you have to use i$.$e vectors, strings or char arrays. However, you

must make sure that there is no hardcoding in this assignment and it uses the concepts of OOP.

Assignment's Description:

In this assignment, you need to develop a banking management system that can help ABC Bank to

manage their customers data efficiently. The system should be able to handle the requirements of the

following stakeholders:

User Client: An ordinary single user account which can only be opened by a person.

Company Client: A multiple user account which can be opened by a Company's CEO.

Banking Employee: An Employee of the bank who will be able to manage the User and

Company's bank accounts.

Assignment's Requirements:

There are $3$ types of accounts that a customer can open in the bank. The information is provided in the

table below for more details:

There are $3$ types of transactions in your banking app:

Deposit

Withdraw

Transfer to another User Client

Refer to $4^{th}($Other Requirements$)$ Section for detailed explanation of these types.

User Client A user client can open a new bank account by providing the following information:

a$.$ Full Name

i$.$ Address

ii$.$ Phone

iii. CNIC

iv$.$ Login ID

v$.$ Password

vi$.$ Estimated Daily Withdrawal Limit

You have to employee proper checks here in order to verify the information is not

fraudulent. Once the banking employee approves the account, then assign the new

customer a randomly generated $16$ Digit Card Number and Prompt them to enter the

PIN Number.

You also need to assign an appropriate account type according to the customer's

estimated daily withdrawal limit$.$

All of this information will be saved in a file "users.txt$"$ in the following format:

The file format is saved as: userid, username, user address, user cnic, user id$,$ user password, account

balance

b$.$ The user client should be able to do the following:

i$.$ They should be able to deposit and withdraw funds from their account.

ii$.$ They should be able to view their account balance and transaction history.

iii. They should be able to transfer funds to other accounts within the bank.

c$.$ Please note that you have to employee proper checks here i$.$e the user cannot withdraw

amount greater than their balance or daily max limit is reached.

d$.$ Account balance will be $0$ for a new account

Company Client:

A company's CEO can open a shared bank account on behalf of their company, whose access

will be available to all of that company's employees. It is assumed that all of the company's

employees already have an User Client account with the bank, i$.$e exist in the file "users.txt$".$

a$.$ Therefore, to open the Company Client's Account, the CEO has to provide the

following:

i$.$ Company's Name

ii$.$ Company's Address

iii. Company's Tax Number

iv$.$ Estimated Daily Withdrawal Limit

v$.$ Account's ID

vi$.$ Account's Password

Upon entering valid information for all of the above, you can save the

information in a file named "companies.txt$".$ The format of the file is as

follows: b$.$ The Company Client can do the following:

i$.$ They should be able to deposit and withdraw funds from their account.

ii$.$ They should be able to view their account balance and transaction history.

iii. They should be able to transfer funds to only user client's accounts within the

bank.

iv$.$ They should be able to request loans from bank.

Remember that multiple user's can access this account via their Bank's User ID

as well if they are the part of the company. Therefore, you will have to maintain

the data in another file named "companies$\_$employees.txt$"$ which will contain

the following information:

The file format is saved as: user client id$,$ company id

This file depicts that User Client with ID Number $1,5,6$ are employees

of company with ID $1.$

Similarly, User Client with ID $7$ is employee of Company $4.$

If the user client ID does not exist in this file, it means that user is not an

employee of any company.

In order to give a choice to user, you can ask them which account would

they like to access whether the company's or their personal.

A User client & Company's Client ID should be unique

Banking Employee:

The banking employee can simply login to the system using their user id and password which

is stored in the file named "admin txt$"$ and can do the following: Banking Employee$-$ i$.$ They should be able to view the list of all client's accounts.

ii$.$ They should be able to approve or reject new account applications.

iii. They should be able to approve or reject loan requests of companies.

iv$.$ They should be able to view transaction history for a specific account.

v$.$ They should be able to freeze or close an account if necessary.