Package bank

Class Account

java.lang.Object

bank.Account

All Implemented Interfaces:

Serializable, Comparable<Account>

public class Account
extends Object
implements Comparable<Account>, Serializable

This class represents the relationship between a bank and its customers (account holders). An account belongs to one or more holders. Each account has one current account and 0 (zero) or more savings accounts.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Account(int id, double amount)

Method Summary

Modifier and Type	Method	Description
void	addHolder(Client holder)	Add an account holder.
void	addSavingsAccount(double amount, double rate, int time)
boolean	canBeRemoved()	Verifies whether an account can be removed.
int	compareTo(Account account)	Compares account ids.
void	createSavingsAccount(double amount, double rate, int time)
double	currentAccountBalance()
void	deposit(double amount)	Makes a deposit in the current account.
boolean	equals(Object obj)	Two accounts are considered equal when they have the same account number.
int	getId()
List<Client>	holders()	Returns the holders of the account.
void	removeSavingsAccount(Savings account)	Remove a given savings account.
Savings	savingsAccount(int id)	Returns the savings accounts associated with the bank account.
Collection<Savings>	savingsAccounts()	Returns the savings accounts associated with the bank account.
String	toString()	String representation of the account: presents the account number and the total balance.
double	totalBalance()	Returns the total balance for the account.
void	withdraw(double amount)	Performs a withdrawal.

Methods inherited from class java.lang.Object

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

Constructor Details

Account

public Account(int id,
 double amount)

Parameters:

id - account id

amount - initial amount for the current account.

Method Details

getId

public final int getId()

Returns:

the account number.

compareTo

public int compareTo(Account account)

Compares account ids.

Specified by:

compareTo in interface Comparable<Account>

equals

public boolean equals(Object obj)

Two accounts are considered equal when they have the same account number.

Overrides:

equals in class Object

deposit

public void deposit(double amount)
             throws InvalidDepositException,
NegativeAmountException

Makes a deposit in the current account.

Parameters:

amount - the amount to be deposited.

Throws:

InvalidDepositException - if it is not possible to make the deposit.

NegativeAmountException - if the amount is not positive.

withdraw

public void withdraw(double amount)
              throws InvalidWithdrawalException,
NegativeAmountException,
BalanceTooLowException

Performs a withdrawal.

Parameters:

amount - the amount to be withdrawn.

Throws:

InvalidWithdrawalException - if it is not possible to withdraw the intended amount.

NegativeAmountException - if the amount is not positive.

BalanceTooLowException

currentAccountBalance

public double currentAccountBalance()

Returns:

the amount in the current account.

totalBalance

public double totalBalance()

Returns the total balance for the account. This balance includes the current account balance and the balances of all the savings accounts. The following implementation uses an implicit iterator, but the same actions could be performed using an explicit one.

Returns:

the account balance.

holders

public List<Client> holders()

Returns the holders of the account.

Returns:

a list with the holders of the account.

addSavingsAccount

public final void addSavingsAccount(double amount,
 double rate,
 int time)
                             throws InvalidWithdrawalException,
NegativeAmountException,
BalanceTooLowException

Parameters:

amount -

rate -

time -

Throws:

BalanceTooLowException

NegativeAmountException

InvalidWithdrawalException

createSavingsAccount

public void createSavingsAccount(double amount,
 double rate,
 int time)
                          throws InvalidWithdrawalException,
NegativeAmountException,
BalanceTooLowException

Parameters:

amount -

rate -

time -

Throws:

BalanceTooLowException

NegativeAmountException

InvalidWithdrawalException

savingsAccount

public Savings savingsAccount(int id)
                       throws NoSuchSavingsAccountException

Returns the savings accounts associated with the bank account.

Parameters:

id -

Returns:

the savings account

Throws:

NoSuchSavingsAccountException

savingsAccounts

public Collection<Savings> savingsAccounts()

Returns the savings accounts associated with the bank account.

Returns:

a list of savings deposits or null (if there are no savings deposits.

removeSavingsAccount

public void removeSavingsAccount(Savings account)

Remove a given savings account.

Parameters:

account - the savings account to be removed.

addHolder

public void addHolder(Client holder)

Add an account holder.

Parameters:

holder - the holder to be added.

canBeRemoved

public final boolean canBeRemoved()

Verifies whether an account can be removed. An account can be removed only when its total balance is 0 (zero).

Returns:

true, if the account can be removed; false, otherwise.

toString

public String toString()

String representation of the account: presents the account number and the total balance.

Overrides:

toString in class Object

Returns:

a string representation of the account.