Class SavingsAccount

java.lang.Object

SavingsAccount

public class SavingsAccount
extends java.lang.Object

This class encapsulates a savings account, with a balance calculated from posted transactions.

Constructor Summary

Constructors

Constructor and Description
SavingsAccount() Initializes this object with no posted transactions and a balance of $0.00.

Method Summary

Methods

Modifier and Type	Method and Description
double	getBalance() Returns the balance of this account.
java.util.Set<Transaction>	getTransactions() Returns a set of transactions, sorted by natural ordering.
void	post(Transaction t) Posts the specified transaction to this account.

Methods inherited from class java.lang.Object

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

Constructor Detail

SavingsAccount

public SavingsAccount()

Initializes this object with no posted transactions and a balance of $0.00.

Method Detail

getBalance

public double getBalance()

Returns the balance of this account.

Returns:

The balance of this account.

post

public void post(Transaction t)
          throws java.lang.NullPointerException

Posts the specified transaction to this account.

Parameters:

t - The Transaction to post.

Throws:

java.lang.NullPointerException - if the specified Transaction is null.

getTransactions

public java.util.Set<Transaction> getTransactions()

Returns a set of transactions, sorted by natural ordering.

Returns:

A set of transactions, sorted by natural ordering.

See Also:

Transaction.compareTo(Transaction)