Bank Account Management App

This project is a simple bank account management application built using Java with no external frameworks like Spring. The solution aims to manage bank account operations such as deposits, withdrawals, and generating account statements. All operations are recorded in an in-memory database, and the project includes unit tests and logging.

Features

• Deposit: Allows the user to deposit money into their account.
• Withdrawal: Allows the user to withdraw money from their account.
• Account Statement: Displays a history of all transactions (date, type of operation, amount).
• In-Memory Database: Transaction data is stored in an H2 in-memory database.
• Logging: Uses Log4j for logging important events (e.g., transactions, exceptions).
• Custom Exceptions: Handles invalid amounts and insufficient balance scenarios.
• Unit Tests: Includes unit tests for deposit and withdrawal operations using JUnit 5.

Structure

The project follows a simple structure with separation between different layers:

/src ├── /main │ ├── /java │ │ ├── /com │ │ │ ├── /bankapp │ │ │ │ ├── BankApp.java │ │ │ ├── /account │ │ │ │ ├── Account.java │ │ │ │ ├── User.java │ │ │ ├── /operation │ │ │ │ ├── Operation.java │ │ │ │ ├── Deposit.java │ │ │ │ ├── Withdrawal.java │ │ │ ├── /exceptions │ │ │ │ ├── InvalidAmountException.java │ │ │ │ ├── InsufficientBalanceException.java │ │ │ ├── /db │ │ │ │ ├── Database.java ├── /test ├── /java ├── /com │ ├── /bankapp │ ├── /operation ├── DepositTest.java ├── WithdrawalTest.java /pom.xml

How to Run the Project

1. Clone the repository: git clone https://github.com/Ta95/gitbank_app.git

2. Build and run the project using Maven: mvn clean install mvn exec:java -Dexec.mainClass="com.bankapp.BankApp"

3. To run the tests: mvn test

Technologies Used

Java 11: Main programming language JUnit 5: For unit testing H2 Database: In-memory database for storing transactions Log4j: For logging application events Project Structure com.bankapp: Contains the main application logic. com.bankapp.account: Contains the Account and User classes. com.bankapp.operation: Contains the Operation interface and its implementations (Deposit, Withdrawal). com.bankapp.db: Contains the Database class, which manages the in-memory database connection. com.bankapp.exceptions: Contains custom exceptions (InvalidAmountException, InsufficientBalanceException).