Payroll Management System – Java + Swing UI + JDBC + SQLite

Build and understand a simple Payroll Management System desktop application using Java 17, Java Swing, JDBC and SQLite.

This project is suitable for BCA, BSc, BTech, B.E., MCA and other Computer Science students who need a simple and practical Java project for college submission, project demonstration and viva preparation.

The project is designed with a simple interface and easy-to-understand Java code, making it suitable for students who are learning Java, OOP, JDBC, Swing and database concepts.

🚀 Project Features

✅ Employee Management

✅ Add New Employee

✅ Update Employee Details

✅ Delete Employee

✅ View All Employees

✅ Full-Time Employee Support

✅ Part-Time Employee Support

✅ Automatic Salary Calculation

✅ Payroll Management

✅ Generate Payroll

✅ View Payroll History

✅ View Payslip

✅ Delete Payroll Record

✅ Input Validation

✅ SQLite Database Storage

✅ JDBC Database Connectivity

✅ CRUD Operations

✅ Simple Java Swing GUI

💰 Salary Calculation

The system supports salary calculation for both Full-Time and Part-Time employees.

Full-Time Employee

For a Full-Time employee, the basic salary is based on the monthly salary.

Formula:

Monthly Salary = Basic Salary

Part-Time Employee

For a Part-Time employee, the basic salary is calculated using hours worked and hourly rate.

Formula:

Hours Worked × Hourly Rate = Basic Salary

Example:

30 Hours × ₹500 = ₹15,000

Payroll Calculation

Gross Salary = Basic Salary + Allowance + Overtime

Net Salary = Gross Salary − Deduction

🛠 Technologies Used

• Java 17
• Java Swing
• JDBC
• SQLite
• IntelliJ IDEA

The project uses a local SQLite database, so a separate database server is not required.

📂 Project Structure

The project is organized into simple Java classes:

Payroll Management System

│

├── Main.java

├── Database.java

├── Employee.java

├── FullTimeEmployee.java

├── PartTimeEmployee.java

├── EmployeeDAO.java

├── PayrollDAO.java

├── Validation.java

└── PayrollFrame.java

The classes are organized according to their responsibilities, making the project easier to understand and study.

🗄 Database

The project uses SQLite for storing data.

Database File:

payroll.db

Main Tables

employees

Stores employee information such as:

• Employee ID
• Name
• Employee Type
• Monthly Salary
• Hours Worked
• Hourly Rate

payroll

Stores payroll information such as:

• Payroll ID
• Employee ID
• Payroll Month
• Basic Salary
• Allowance
• Overtime
• Deduction
• Gross Salary
• Net Salary

The application automatically creates the required tables when it is started for the first time.

📚 OOP Concepts Demonstrated

This project demonstrates important Java Object-Oriented Programming concepts:

• Abstraction
• Encapsulation
• Inheritance
• Method Overriding

The project uses an abstract Employee class with:

• FullTimeEmployee
• PartTimeEmployee

Both employee classes provide their own implementation of the salary calculation method.

📋 Main Modules

1. Employee Management

Manage employee records using:

• Add
• Update
• Delete
• View

2. Payroll Management

Manage payroll using:

• Select Employee
• Enter Payroll Month
• Add Allowance
• Add Overtime
• Add Deduction
• Calculate Salary
• Generate Payroll
• View Payslip
• View Payroll History

3. View Database

View the stored:

• Employee records
• Payroll records

📄 Included with the Project

You will receive:

✅ Complete Java Source Code

✅ Java Swing GUI

✅ JDBC Database Code

✅ SQLite Database Setup

✅ Project Report

✅ How to Run Guide

✅ PPT Presentation Content

✅ Viva Questions & Answers

All files are organized to help students understand the project, run it on their computer and prepare for their college project demonstration and viva.

🎓 Suitable For

This project is suitable for:

• BCA Students
• BSc Computer Science Students
• BTech Students
• B.E. Students
• MCA Students
• Java Beginners
• College Mini Projects
• Java Swing Practice
• JDBC Practice
• SQLite Database Practice
• OOP Practice

💻 Requirements

Before running the project, you need:

• Java JDK 17
• IntelliJ IDEA / Eclipse / VS Code
• SQLite JDBC Driver
• The provided project ZIP file

No separate MySQL server or MySQL Workbench is required.

⚡ Why This Project?

The project uses:

Java 17 + Swing + JDBC + SQLite

This keeps the application simple and suitable for students who want to understand Java desktop application development without setting up a separate database server.

The project also demonstrates practical concepts such as:

• Java OOP
• GUI Development
• Database Connectivity
• CRUD Operations
• Salary Calculation
• Input Validation
• DAO Pattern
• SQLite Database Operations

⭐ What You Will Learn

By working with this project, you can understand:

• How to create a Java Swing desktop application
• How to connect Java with SQLite using JDBC
• How to perform CRUD operations
• How to use OOP concepts in a real project
• How inheritance and method overriding are used
• How to calculate employee salary
• How to validate user input
• How to store and retrieve data from SQLite
• How DAO classes handle database operations
• How to organize a Java project

📦 Project File

You will receive the complete project as a ZIP file, along with project documentation, setup instructions, PPT content and viva preparation material.

Download the project and start learning Java desktop application development with a practical Payroll Management System.

Project ZIP size: Approximately 12 MB

Note

This is an educational/college project intended for learning, demonstration, and academic submission purposes. Students may customize the project according to their college requirements.

Keywords:

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