Demo this program
to the instructor or upload the .java file to Ecampus.
Write a program named bank.java that allows you to set up checking accounts
and loan accounts. It should contain 3 classes: Customer,
CheckingAccount, LoanAccount. The CheckingAccount and LoanAccount classes inherit
from the Customer class.
Create an ArrayList of 5 Checking Account customers and
an ArrayList of 5 Loan Account customers.The program should be set up in a
loop with the following menu options:
(1) Bank Information (show BankBalance, Bank Transactions, Number
Customers)
(2) Print all Checking accounts
(3) Deposit Money (ask user for the Record# and Amount)
(4) Withdraw Money (ask user for the Record# and Amount)
(5) Print all Loan accounts
(6) Make Loan (ask user for the Record# and Amount of Loan)
(7) Make Payment (ask user for the Record# and Payment Amount)
(8) Exit
Extra Credit: Have options to add and delete customers.
|
|
|
Customer
Class |
| Variable Names |
Variable Description |
| String FName,
LName |
Customer's first and last name. |
| String Email |
Customer's e-mail address. |
| int
CustomerTransactions |
The total number of transactions
(deposits and withdrawals) made by the customer. |
| static double BankBalance |
The bank's total balance (static).
You should change this variable when customers make deposits, withdrawals,
take loans, and make loan payments. |
| static int
NumberCustomers |
The total number of customers at the bank
(static). Increment this variable in the CheckAccount and LoanAccount
constructors. |
|
CheckingAccount Class |
| Variable Names |
Variable Description |
| private double
CheckingBalance |
The customer's checking account balance. |
| Methods
Names |
Methods Description |
|
CheckingAccount(String theLName, String theFName, String theEmail, double
OpeningDeposit) |
The constructor should (1)
initialize the name and email variables, (2) set CheckingBalance to
OpeningDeposit, (3) add the OpeningDeposit to the BankBalance,
(5) increment NumberCustomers. |
| getCheckingBalance() |
The Get method is needed
since CheckingBalance is Private. |
|
Deposit(Amount) |
Deposit money into the
customer's account (include the amount as a parameter). Remember to
increment CustomerTransactions and add Amount to BankBalance. |
|
Withdraw(Amount) |
Withdraw money from the
customer's account (include the amount as a parameter). If the
customer overdrafts, charge a $25 fee. Remember to increment CustomerTransactions and
subtract Amount from BankBalance. |
|
LoanAccount
Class |
| Variable Names |
Variable Description |
| private double
LoanBalance |
The customer's remaining loan principle. |
| Methods Names |
Methods Description |
|
LoanAccount(String theLName, String theFName, String theEmail, double
OpeningLoan) |
The constructor should: (1)
initialize the name and email, (2) set LoanBalance to OpeningLoan *
1.25 for a 25% interest premium, (3) subtract the OpeningLoan from
BankBalance, (4) increment NumberCustomers. |
| getLoanBalance() |
Get method since LoanBalance
is private |
| MakeLoan(Amount) |
Add this amount and a 25%
interest premium to the LoanBalance. Remember to increment
CustomerTransactions and subtract Amount from BankBalance. |
| MakePayment(Amount) |
Subtract Amount from
the LoanBalance. If LoanBalance <= 0, output a message (e.g.
"Customer X just payed off his/her loan!"). Remember to
increment CustomerTransactions and add Amount to BankBalance. |
How to Declare an ArrayList of Objects
In your main program, declare two ArrayLists
- one for CheckingAccount and one for LoanAccount. You can use the data below to get started.
ArrayList<CheckingAccount> Check = new ArrayList<CheckingAccount>();
Check.add(new CheckingAccount("Kirk","David","dkirk@dcccd.edu",10000.0));
Check.add(new CheckingAccount("Spock","Mister","tribbles@starfleet.gov",500.0));
Check.add(new CheckingAccount("Scott","Hulu","hulu@aol.com",75.0));
ArrayList<LoanAccount> Loan = new ArrayList<LoanAccount>();
Loan.add(new LoanAccount("Zeus","Apollo","apollo@gmail.com",5000));
Loan.add(new LoanAccount("Einstein","Amy","amy@yahoo.com",1000));
Loan.add(new LoanAccount("Caesar","Julie","julie@hotmail.com",500));
Printing all Accounts
To print all accounts you can use a for loop
to step through each ArrayList element.
for (int i=0; i<Check.size(); i++)
{
System.out.println (i + "\t" + Check.get(i).GetLName() + ", " + Check.get(i).GetFName()
+ "\t" + Check.get(i).getCheckingBalance() + "\t" +
Check.get(i).CustomerTransactions);
}
Retrieving (static) Bank Information
For the static variables, remember that you
can use any of the array elements and either the Check class or Loan class -
they all point to the same variable. The following two lines give you the
same answer:
System.out.println( Check.get(0).BankBalance
);
System.out.println( Loan.get(0).BankBalance
);
Example Output
//Option 1 to print bank information
====================================================
| Bank of Eastfield Information
|
| Total Bank Balance: 4075.0
| Total Bank Customers: 6
====================================================
//Option 2 to print
checking accounts
====================================================
| Checking Accounts
| Rec Name Balance
Transactions
| -----------------------------------------
| 0 Kirk, David 10000.0 3
| 1 Spock, Mister 500.0 0
| 2 Scott, Hulu 75.0
2
//Option 3 to deposit
money
====================================================
Enter checking record number:
2
Amount to deposit:
100
Scott Hulu now has $175.0
|