A simple banking system implementation following Domain-Driven Design (DDD) principles that allows deposits, withdrawals, and statement printing.

• Account Management:

  • Deposit money
  • Withdraw money
  • View transaction history

• Core Banking Operations:

  • Maintain account balance
  • Record all transactions
  • Generate formatted statements

• Domain Layer: Contains all business logic and rules
• Application Layer: Coordinates operations and handles use cases
• Infrastructure Layer: Provides implementations for repositories and printers

• Account: The aggregate root managing all transactions
• AccountService: Application service handling banking operations
• InMemoryAccountRepository: Simple repository implementation
• ConsoleStatementPrinter: Displays formatted statements

When running the application, you'll see a menu with these options:

=== Banking Application ===
1. Deposit
2. Withdraw
3. Print Statement
4. Exit

• Select an option by entering the corresponding number
• Follow prompts to enter amounts when making deposits or withdrawals
• Statements show transactions in format: Date || Amount || Balance

• Domain-Driven Design: Clear separation of domain, application, and infrastructure layers
• Immutable Objects: Value objects are immutable for thread safety
• Clean Architecture: Dependencies point inward toward domain logic
• SOLID Principles: Each class has single responsibility

=== BANK STATEMENT ===
Account: ACC123
Date: 2023-05-20

Date || Amount || Balance
============================
2023-05-20 || 1000 || 1000
2023-05-21 || 2000 || 3000
2023-05-22 || -500 || 2500
============================
Current Balance: 2500
============================