cse1030

Class AbstractBankAccount

java.lang.Object

cse1030.AbstractBankAccount

Direct Known Subclasses:

SavingsAccount

public abstract class AbstractBankAccount
extends Object

A simple abstract class for representing bank accounts. The balance is stored as an integer amount (presumably in cents for a North American bank account).

Author:

CSE1030Z

Field Summary

Fields

Modifier and Type	Field and Description
protected long	balance

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractBankAccount(long balance) Create a bank account with the given starting balance.

Method Summary

Methods

Modifier and Type	Method and Description
void	deposit(long amount) Deposit an amount of currency into the account.
long	getBalance() Return the account balance.
abstract void	update() Update the account balance to reflect specific policies on the account; for example, a savings account might add interest to the account balance.
void	withdraw(long amount) Withdraw an amount of currency from the account.

Methods inherited from class java.lang.Object

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

Field Detail

balance

protected long balance

Constructor Detail

AbstractBankAccount

protected AbstractBankAccount(long balance)

Create a bank account with the given starting balance.

Parameters:

balance - the starting balance of the account

Method Detail

deposit

public void deposit(long amount)

Deposit an amount of currency into the account.

Exactly how the balance of the account is affected by the deposit is determined by the subclasses; the default behavior supplied by AbstractBankAccount is to add the deposit amount to the balance.

Throws:

IllegalArgumentException - if amount < 0

Parameters:

amount - the amount of currency to deposit into the account

withdraw

public void withdraw(long amount)

Withdraw an amount of currency from the account.

Exactly how the balance of the account is affected by the withdrawal is determined by the subclasses; the default behavior supplied by AbstractBankAccount is to subtract the withdrawal amount from the balance.

Throws:

IllegalArgumentException - if amount < 0

Parameters:

amount - the amount of currency to withdraw from the account

getBalance

public long getBalance()

Return the account balance.

Returns:

the account balance

update

public abstract void update()

Update the account balance to reflect specific policies on the account; for example, a savings account might add interest to the account balance.

Parameters:

d - the date when the update is performed