cse1030

Class SavingsAccount

java.lang.Object

cse1030.AbstractBankAccount

cse1030.SavingsAccount

public class SavingsAccount
extends AbstractBankAccount

A class that represents a savings account that pays interest on the account balance. Withdrawals from the account are penalized by a withdrawal fee that is debited from the balance.

Author:

CSE1030

Field Summary

Fields inherited from class cse1030.AbstractBankAccount

balance

Constructor Summary

Constructors

Constructor and Description
SavingsAccount(long balance, double interestRate, long withdrawalFee) Create a savings account given the amounts of the starting balance, the daily interest rate, and withdrawal fee.

Method Summary

Methods

Modifier and Type	Method and Description
double	getInterestRate() Get the interest rate
long	getWithdrawalFee() Get the withdrawal fee.
void	setInterestRate(double interestRate) Set the interest rate.
void	setWithdrawalFee(long withdrawalFee) Set the withdrawal fee.
void	update() Update the account balance to add interest earned on the account balance.
void	withdraw(long amount) Withdraw an amount of currency from the account.

Methods inherited from class cse1030.AbstractBankAccount

deposit, getBalance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SavingsAccount

public SavingsAccount(long balance,
              double interestRate,
              long withdrawalFee)

Create a savings account given the amounts of the starting balance, the daily interest rate, and withdrawal fee.

Parameters:

balance - the starting balance

interestRate - the daily interest rate

withdrawalFee - the fee associated with each withdrawal

Method Detail

getInterestRate

public final double getInterestRate()

Get the interest rate

Returns:

the interest rate

setInterestRate

public final void setInterestRate(double interestRate)

Set the interest rate.

Throws:

IllegalArgumentException - if interestRate < 0

Parameters:

interestRate - the new interest rate

getWithdrawalFee

public final long getWithdrawalFee()

Get the withdrawal fee.

Returns:

the withdrawal fee

setWithdrawalFee

public final void setWithdrawalFee(long withdrawalFee)

Set the withdrawal fee.

Throws:

IllegalArgumentException - if withdrawalFee < 0

Parameters:

withdrawalFee - the new withdrawal fee

withdraw

public void withdraw(long amount)

Withdraw an amount of currency from the account. The amount is subtracted from the balance and the withdrawal fee is subtracted from the balance.

Overrides:

withdraw in class AbstractBankAccount

See Also:

AbstractBankAccount.withdraw(long)

Parameters:

amount - the amount to withdraw from the account

update

public void update()

Update the account balance to add interest earned on the account balance. Assume that this is called once each day, and that the interest earned is calculated based on the current balance.

The interest earned is calculated using floating point arithmetic and then rounded to the nearest integer before being added to the balance.

Specified by:

update in class AbstractBankAccount

See Also:

AbstractBankAccount.update()