by using javaScript ,

1) Create BankAccount class with the following properties: accountNo, balance. This class should have a constructor to initialize these 2 properties. This class should have these methods:

- deposit(amount): this method adds the amount to the balance

-withdraw(amount): this method subtracts the amount from the balance

- toString(): this method return Account # accountNo has $ balance. e.g., Account #123 has $1000.

Export the BankAccount class module as an object.

2) Create app.js program. Declare accounts variable array and initialize it with the following accounts:

accountNo	balance
123	1000
234	4000
345	3500

Display the content of the accounts array.

3) Create SavingAccount class that extends BankAccount with an extra property: minBalance and an extra method distributeBenefit(benefitPercentage). This method computes the monthly benefit using the balance += (balance * benefitPercentage). The constructor should extend BankAccount to initialize the minBalance. Also, Override the toString() to indicate that this is a Saving Account. e.g., e.g., Saving Account #123 has QR1000. '

Test savingAccount in app.js using the same table above and use a minimum balance of 500 for all accounts.

4) Create CurrentAccount class that extends BankAccount with an extra property: monthlyFee and an extra method deductFee(). This method subtracts the monthlyFee from the account balance only if the current balance is less than the minimum balance. The constructor should extend BankAccount to initialize the monthlyFee. Also, Override the toString() to indicate that this is a Current Account. e.g., e.g., Current Account #123 has $1000.

Test currentAccount in app.js using the same table above and use a monthly fee of 15 for all accounts.

5) Create Bank class to manage accounts. It should have a property accounts to store the accounts. Also, it should have the following methods:

add(account) Add account (either Saving or Current) to accounts array.

getAccount(accountNo) Return an account by Id

deleteAccount(accountNo) Delete an account by Id

avgBalance() Get the average balance for all accounts

sumBalance() Get the sum balance for all accounts

serialize() Return accounts as a JSON string d

eserialize(accountsJson) Takes JSON string representing accounts and returns an array of accounts.

6) Create app.js program. Declare an instance of Bank class then add the following accounts

accountNo balance type minimumBalance monthlyFee

123 500 Saving 1000 -

323 4000 Current - 15

345 35000 Current - 25

456 60000 Saving 1000 -

- Test all the bank methods described above.

- Display the total balance of all accounts.

- Go through all the Current accounts and charge the monthly fee

- Display the total balance of all accounts after charging the monthly fee.

- Go through all the Saving accounts and distribute the benefit using a 5% benefit.

- Display the total balance of all accounts after distributing the benefits.