BankAccount$-$transactionFee

anguage$/$Type: $,$ Java classes instance methods

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BankAccount, java

uppose that you are provided with a pre$-$written class BankAccount as shown below. $($The headings are shown, but not ne method bodies, to save space.$)$ Assume that the fields, constructor, and methods shown are already implemented. You tay refer to them or use them in solving this problem if necessary.

Vrite a method named transactionFee that will be placed inside the BankAccount class to become a part of each ankAccount object's behavior. The transactionFee method accepts a fee amount $($a real number$)$ as a parameter, and pplies that fee to the user's past transactions. The fee is applied once for the first transaction, twice for the second ransaction, three times for the third, and so on$.$ These fees are subtracted out from the user's overall balance. If the user's alance is large enough to afford all of the fees with greater than $$0\mathrm{.}00$ remaining, the method returns true. If the alance cannot afford all of the fees or has no money left, the balance is left as $0\mathrm{.}0$ and the method returns false.

$//$ A BankAccount keeps track of a user's money balance and ID$,$

$//$ and counts how many transactions $($deposits$/$withdrawals$)$ are made.

public class BankAccount $\{$

private String id;

private double balance;

private int transactions;

$//$ Constructs a BankAccount object with the given id$,$ and

$//$ balance and transactions.

public BankAccount $($String id$)$

$//$ returns the field values

public double getBalance$()$

public String getID$()$

public String getTransactions$()$

$//$ Adds the amount to the balance if it is between $8-500.$

$//$ Also counts as $1$ transaction.

public void deposit$($double amount$)$