Team 4 Banking Project

Project Overview: Banking Application

1. Customer Class

• Fields:

 int customerId;
 String firstName;
 String lastName;
 String city;

• Constructors:

... Customer(){...}; 
... Customer(int customerId, String firstName, String lastName, String city){...}; 

• Getter and Setter Methods

2. AccountType Enum Class

• toString(){...}; method

• Constants:

  • CHECKING (Checking Account),
  • SAVINGS (Savings Account),
  • CREDIT (Credit Account)

3. Account Class

• Fields:

    int accountId;
    int customerId;
    double balance;
    AccountType accountType;

• Constructors:

... Account(){...};
... Account(int accountId, int customerId, AccountType accountType){};

• Getter and Setter Methods
• depositToAmount(double amount) method (Deposit Money)
• withdrawFromAmount(double amount) method (Withdraw Money)
• toString() method

4. BankSimulation Class

• Fields:

  Map<Integer, Customer> customers;
  List<Account> accounts;
  Scanner scanner;

• Constructors:

  BankSimulation() { 
     customers = new HashMap<>(); 
     accounts = new ArrayList<>(); 
     scanner = new Scanner(System.in); 
 }

• Main Method

    public static void main(String[] args){
    ...
}

• run() method
• listCustomers() method
• listCustomerAccounts(Customer customer) method
• addCustomer() method
• customerOperationsMenu() method
• customerOperations(Customer customer) method
• openNewAccount(Customer customer) method
• depositToAccount(Customer customer) method
• withdrawFromAccount(Customer customer) method
• checkBalance(Customer customer) method
• getAccountById(int accountId) method

Project Structure:

BankingSystem
├── src
│ ├── Customer.java
│ ├── AccountType.java
│ ├── Account.java
│ └── BankSimulation.java
└── README.txt (Optional)

Tasks

1. Create the project structure and place the given classes in their respective files.
2. Implement getter and setter methods in the "Customer" class.
3. Implement depositToAmount() and withdrawFromAmount() methods in the "Account" class.
4. Complete the customer addition and listing functions in the "BankSimulation" class.
5. Complete the new account creation and account transaction functions in the "BankSimulation" class.
6. Start the application in the main method and handle user interactions through the user interface.

Notes

• Implement appropriate error handling for invalid inputs (optional).

Additional Information

• The BankSimulation class manages banking operations and provides the main user interface. The main method is located in this class and starts the banking simulation. The run method creates the main menu and directs operations based on user inputs.
• The Customer class represents bank customers and contains customer details.
• The Account class represents bank accounts and contains account-related information. It also includes transaction methods such as withdrawFromAmount (withdraw money) and depositToAmount (deposit money).
• The AccountType enum represents different types of accounts: checking, savings, and credit.
• The BankSimulation class utilizes customers and accounts variables as final to prevent reference changes, ensuring better security and control. However, while the reference itself cannot be modified, the contents of the HashMap and List can still be updated as needed.

Author

• Zafer Atakli

License

This project is open-source and available under the MIT License.