Contact person: Business Client

Phone:Show

Email:Show

Location: HYDERABAD, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Project Description: Sales and Invoice Management System

Overview

This project is a **student-level demo application** developed using **Java** in **NetBeans IDE**, primarily utilizing the **drag-and-drop GUI builder** (JavaFX ).
The goal is to create a **desktop-based Sales and Invoice Management System** for a small retail business, helping automate billing, product tracking, and sales reporting.

The application replaces the manual process of using notebooks or spreadsheets by providing a **centralized, digital platform** to manage invoices, products, and clients efficiently.

---

## **Key Features**

1. **Login System**

* User authentication using username and password.
* Different roles (Admin and Staff).
* Admin can view analytics and reports, while staff can only create invoices.

2. **Dashboard**

* Displays key metrics such as:

* Number of products
* Total invoices
* Total monthly revenue

3. **Product Management**

* Add, update, and delete product details (name, price, stock).
* Input validation for each field (e.g., correct type and non-empty).

4. **Invoice Management**

* Create new invoices with:

* Unique system-generated invoice ID.
* Client name and date.
* Select products and input quantity.
* Automatically calculate:

* Subtotal
* Discounts (fixed or percentage)
* Tax
* Final total

5. **Invoice Storage and Tracking**

* Save invoices using **file I/O** (text files).
* View list of all invoices — filter by date or payment status.
* Option to mark invoices as **paid** or **unpaid**.
* Edit or update invoices if errors are found.

6. **Reporting and Analytics**

* Monthly sales summary (total revenue per month).
* View unpaid invoices sorted by due date.
* Generate bar chart visualization of monthly sales (using **JFreeChart** or JavaFX chart library).
* Export monthly reports to text files.
* Optionally generate printable **PDF receipts** for customers.

---

## **Technical Details**

* **Technology:** Java (JDK 21 preferred)
* **IDE:** NetBeans (latest version)
* **UI Method:** Drag-and-Drop GUI Builder (JavaFX or Swing)
* **Data Storage:** File I/O (text file storage for products, invoices, and clients)
* **Libraries Used:**

* `JFreeChart` – for visual reports (bar charts)
* `[login to view URL]` – for file handling (save/load data)
* `javafx` or `[login to view URL]` – for the user interface
* **Structure:**

* `[login to view URL]` – application entry point
* `[login to view URL]`
* `[login to view URL]`
* `[login to view URL]`
* `[login to view URL]`
* `[login to view URL]`
* `[login to view URL]` – handles file I/O for products and invoices

---

## **Expected Output**

* A **fully functional demo application** that can:

* Log in users.
* Manage products and invoices.
* Calculate totals, discounts, and taxes automatically.
* Save and load all data persistently from files.
* Show monthly analytics visually.
* Export reports and optionally print receipts.

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## **User Roles**

| Role | Permissions |
| ----------------- | ------------------------------------------------- |
| **Admin** | Full access (create, view analytics, manage data) |
| **Staff/Cashier** | Create and update invoices only |

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## **Development Notes**

* Keep the interface clean and simple for demonstration.
* Use **drag-and-drop components** for layout design (labels, text fields, buttons, tables, charts).
* Implement **basic validation** for all fields (e.g., price must be numeric).
* Use clear and well-commented code for student-level readability." (client-provided description)