ATM Management System

Version: 1.0
Developed by: Ahmed Abdalla El-Tahan
Date: February 2024

Overview

The ATM Management System is a standalone Java application that facilitates basic banking functionalities. It includes account management, deposits, withdrawals, transfers, and PIN management through a user-friendly graphical user interface (GUI) built with Swing.

Features

• Account Management:

  • Account creation (Savings and Checking).
  • Account login and authentication.
  • PIN change functionality with validation.

• Transactions:

  • Deposits and withdrawals with constraints.
  • Transfers between accounts.
  • Transaction history view.

• GUI Interface:

  • Login screen with validation.
  • Main menu for transaction handling.
  • Numeric keypad for user input.

• Account Types:

  • Savings Account: Up to three free withdrawals, with fees applied thereafter.
  • Checking Account: Allows overdraft up to a predefined limit.

Technologies

• Programming Language: Java (Java SE 8+)
• Framework: Swing (for GUI)
• Storage: Local HashMap (for account management)

System Requirements

• Java Version: 8 or higher
• Operating System: Any desktop environment supporting Java Runtime Environment (JRE)

How to Run

1. Compile the code:

   javac Main.java

2. Run the application:

   java Main

Classes and Responsibilities

• Account: Manages core account functionalities (balance management, transaction history, etc.).
• SavingsAccount & CheckingAccount: Extend account functionality with specific rules (e.g., withdrawal limits).
• AccountManager: Handles account creation and lookup.
• ATMService: Implements transaction logic and user authentication.
• LoginGUI: Provides a login interface.
• MenuGUI: Facilitates interaction with account services post-login.

Project Structure

src/
├── Account.java
├── AccountManager.java
├── ATMService.java
├── CheckingAccount.java
├── LoginGUI.java
├── Main.java
├── MenuGUI.java
└── SavingsAccount.java

Key Functional Requirements

• Validate user login credentials.
• Enforce withdrawal limits and fees.
• Allow seamless transfers between accounts.
• Ensure secure PIN change with validation.

Documentation

For detailed requirements, refer to the Software Requirements Specification. The class structure is illustrated in the Class Diagram.