# Checkbook-OldStyle

Create a simple Checkbook class that adheres to java Collections interface.

A new company, ZipMintyFreshness, needs a checkbook account object inside their new mobile offering.

You need to create a class, and 3 tests for every method.

Maybe you'll get paid.


Checkbook
 needs to organize and track a series of Transaction objects. See the Transaction class file.
 Transaction needs to use a few Payee objects for your tests.
 
 * int size()
 * boolean isEmpty()
 * boolean contains(Transaction element)
 * boolean add(Transaction element)
 * boolean remove(Transaction element)
 * Iterator<Transaction> iterator()
 
 AND
 
 * Transaction[] toArray()
 * <Transaction> Transaction[] toArray(Transaction[] a)
 
 * double checkbookValue() // sum of all Transactions (both Debits and Credits)
 * Transaction getTransactionsForDate(LocalDate aDate)
 * Transaction[] getAllTransactionsForPayee(Payee payee)
 
 Special Constructors:
 * Checkbook(double cashAmount)
 * Checkbook(Payee owner, double cashAmount)
 
 
 PLUS (For Extra Points, 10 million extra, to be precise)
 
 * containsAll(Collection<Transaction> c) 
 * boolean addAll(Collection<Transaction> c)
 * boolean removeAll(Collection<Transaction> c)
 * void clear()