POS System

This is a Point of Sale (POS) system developed using Java Swing for the frontend and MySQL for data management. It provides a complete workflow for managing retail operations, including inventory tracking, sales processing, and analytics.

Main Features

Manager Operations

Manager accounts have full control over the store's data:

• Inventory Management: Full CRUD operations for products and categories.
• Stock Monitoring: Automatic tracking of inventory levels with custom alert thresholds.
• Expiration Tracking: System filters and alerts for products past their shelf life.
• Sales Analytics: Visual dashboard showing revenue, order counts, top-selling products, and general trends.
• System Configurations: Global settings for store name, currency, and tax rates.

Sales Assistant Operations

Designed for speed and ease of use during checkout:

• Product Discovery: Fast search by name or category.
• Cart Management: Interactive cart with quantity adjustments.
• Real-time Alerts: Visible low stock warnings directly in the search results.
• Quick View: Detailed product specifications and descriptions accessible with a double-click.
• Order Processing: Complete checkout flow with payment validation and change calculation.

User Experience

• Theme Support: Switch between light and dark modes at any time.
• Modern Interface: Clean, card-based layout inspired by professional dashboards.
• Dynamic Feedback: Status colors and icons that change based on system state.

Technical Details

• Language: Java 17
• Framework: Java Swing
• Database: MySQL 8
• Build Tool: Maven

Getting Started

Prerequisites

You need Java JDK 17, MySQL Server, and Maven installed on your machine.

Database Installation

Import the provided SQL schema into your MySQL instance:

sudo mysql < pos_system.sql

Configuration

Credentials and connection details can be updated in: src/main/java/jdbc/DbConnection.java

Running the App

Use Maven to compile and launch the application:

mvn clean compile exec:java -Dexec.mainClass="main.Main"

Default Login Credentials

Role	Username	Password
Manager	admin	admin
Assistant	staff	staff

Project Structure

src/main/java/
├── main/              # Application entry point
├── modal/             # Business logic
│   ├── process_order/
│   ├── products/
│   └── users/
├── jdbc/              # Database access
├── ui/                # Swing GUI
│   ├── assistant/
│   └── manager/

Future Features

• Sales reports and analytics dashboard
• Export data to PDF/Excel

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/new-feature)
3. Commit your changes (git commit -m 'Add new feature')
4. Push to the branch (git push origin feature/new-feature)
5. Open a Pull Request