ADT for BankAccount


	Members:

   private static long assignAccountNumber

   private double penalty
   private long acctNumber;  
   private double balance;  
   private String name;


	Methods:

Constructor:
PRECONDITIONS:  none
INPUT:		Accountname and OpeningBalance
PROCESS:	It creates the account and assigns name to be Accountname 
		and balance to be OpeningBalance. It assigns accNumber to be 
		assignAccountNumber and increments assignAccountNumber by one.
OUTPUT:		none
POSTCONDITIONS: The account is created and name, accNumber, and balance
		have been assigned.

Constructor:
PRECONDITIONS:  none
INPUT:		Accountname 
PROCESS:	It creates the account and assigns name to be Accountname
		and balance to be zero. It assigns accNumber to be 
		assignAccountNumber and increments assignAccountNumber by one.
OUTPUT:		none
POSTCONDITIONS: The account is created and name and  accNumber have been 
		assigned.  balance is set to zero.

deposit
PRECONDITIONS:  amount must be positive
INPUT:		amount to be deposited
PROCESS:	It adds the amount to the balance. If the amount is positive, a
		0 is returned, else a 1 is returned.
		of the outcome of the transaction.
OUTPUT:		int
POSTCONDITIONS:	balance is changed

withdraw
PRECONDITIONS:  amount be positive.  There must be sufficient funds to cover
		the withdrawal.
INPUT:		amount to be withdrawn
PROCESS:	It subtracts the amount from balance. If there is not 
		sufficient funds for withdrawal, a penalty is assessed. If the
		amount sent is negative, a 1 is returned. If insufficient
		funds for the withdrawal, a 2 is returned. If successful, a 0
		is returned.
OUTPUT:		int
POSTCONDITIONS:	balance is changed

transfer
PRECONDITIONS:  amount be positive.  There must be sufficient funds to cover
		the withdrawal.
INPUT:		amount to be transferred and acc to where transfer is to put
PROCESS:	It subtracts the amount. If there is not sufficient funds for
		withdrawal, a penalty is assessed.  It deposits the amount into
		the transfer account.  If the amount sent is negative, a 1 is 
		returned. If insufficient funds for the withdrawal, a 2 is 
		returned. If successful, a 0 is returned.
OUTPUT:		int
POSTCONDITIONS:	balance is changed

getBalance
PRECONDITIONS:  none
INPUT:		none
PROCESS:	It returns the current balance.
OUTPUT:		balance
POSTCONDITIONS:	none

getAccountNumber
PRECONDITIONS:  none
INPUT:		none
PROCESS:	It returns the acctNumber.
OUTPUT:		acctNumber
POSTCONDITIONS:	none

getName
PRECONDITIONS:  none
INPUT:		none
PROCESS:	It returns the name.
OUTPUT:		name
POSTCONDITIONS:	none

setName
PRECONDITIONS:  none
INPUT:		the new name
PROCESS:	It sets the name to its new value.
OUTPUT:		none
POSTCONDITIONS:	name has been changed

getPenalty
PRECONDITIONS:  none
INPUT:		none
PROCESS:	It returns the penalty.
OUTPUT:		penalty
POSTCONDITIONS:	none

setPenalty
PRECONDITIONS:  none
INPUT:		the new penalty
PROCESS:	It sets the penalty to its new value.
OUTPUT:		none
POSTCONDITIONS:	penalty has been changed

toString
PRECONDITIONS:  none
INPUT:		none
PROCESS:	It returns a string which is to be used in the System.out
		to generate output.
OUTPUT:		A String which is the output of printing the account.
POSTCONDITIONS:	none