50 Java Projects With Source Code in 2025: From Beginner to Advanced

20 In-Demand Java Projects For Beginners

The 20 Java projects in this section focus on core Java concepts without piling on excessive complexity. Choosing smaller assignments gives you enough room to learn basic syntax, understand object-oriented principles, and practice real problem-solving techniques.  

Working on these Java Projects With Source Code builds confidence in handling user interactions and managing data effectively. It prepares you to take on more advanced development tasks with ease.

Here are some key skills you can sharpen while exploring these projects:

• Object-Oriented Thinking: Deepen your understanding of classes, objects, and inheritance to structure your code more efficiently.
• Fundamental Problem-Solving: Break tasks into manageable steps and develop logical approaches to reach solutions.
• Data Handling and Storage: Use file I/O and simple database operations to track user input and application data.
• User Interaction: Build small interfaces or console-based menus that let you engage with your programs in practical ways.
• Basic Code Organization: Learn how to separate different parts of your application, making your code cleaner and easier to maintain.

Let’s get started with the projects now.

1. Currency Converter Application

The Currency Converter Application allows users to convert an amount from one currency to another using real-time or fixed exchange rates. It features a clean interface, input validation, and support for multiple global currencies. This is useful today for travelers, online shoppers, and businesses dealing with international transactions.

How to Build It?

What Will You Learn?

• Basic Java Programming: You’ll work with variables, data types, and conditional statements.
• User Input Handling: You’ll learn how to take input from users and process it efficiently.
• GUI Design (Optional): You’ll use Swing or JavaFX to build a simple, interactive interface.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Basic knowledge of Java programming concepts
• Understanding of arithmetic operations
• Ability to capture and validate user inputs
• Basic knowledge of GUI Design

Practical Applications Of The Project:

2. Brick Breaker Game

The Brick Breaker Game is a classic arcade-style Java game where a ball bounces off a paddle to break colored bricks. It includes score tracking, increasing difficulty levels, sound effects, and game-over detection. This game project is great for understanding object movement, collision detection, and event handling, which are vital in game development.

How to Build It?

What Will You Learn?

• Game Logic & Physics: You’ll learn how the ball moves and bounces off surfaces and how the paddle controls its direction.
• Java GUI Development: You’ll learn to use Java Swing or JavaFX to create a visual game interface.
• Event Handling: You’ll control the paddle using keyboard or mouse inputs and learn how to handle these actions in the game.
• Game Loop & Animation: You’ll learn how to keep the game running smoothly by updating the visuals regularly and checking for interactions between the ball, the paddle, and the bricks.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Strong understanding of Java basics
• Knowledge of event handling and user input processing
• Familiarity with Java's graphics and drawing libraries
• Ability to manage game states and object interactions

Practical Applications Of The Project:

3. Attendance Management System

This is a Java-based application that records, tracks, and manages students' or employees' attendance. It features login authentication, date-wise attendance entry, attendance reports, and automatic percentage calculation. This system is essential for educational institutions and organisations to maintain accurate attendance records and improve accountability.

How to Build It?

What Will You Learn?

• Database Handling: You’ll store and manage attendance records using a database instead of manual registers.
• CRUD Operations: You’ll learn how to Create, Read, Update, and Delete records to keep attendance data accurate.
• User Authentication: You’ll add login/logout features so only authorized users can access records.
• GUI Development: You’ll use Java Swing or JavaFX to design a simple interface and make the system easy to use.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of database management and SQL to handle records
• Familiarity with CRUD operations and data manipulation
• Experience with user authentication and security features

Practical Applications Of The Project:

4. Number Guessing Game

The Number Guessing Game is a simple Java project where the user tries to guess a randomly generated number within a set range. It includes features like user input, attempts tracking, hints for higher or lower guesses, and game restart options. This project is useful for beginners to understand basic logic, random number generation, and user interaction in Java.

How to Build It?

What Will You Learn?

• Random Number Generation: You’ll learn how to make the program pick a secret number each time the game starts.
• User Input Handling: You’ll take guesses from the player and check if they match the correct number.
• Conditional Statements: You’ll use if-else statements in Java to guide the player with hints like “Too High” or “Too Low.”
• Looping Concepts: You’ll limit the number of attempts and repeat the guessing process until the player wins or loses.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of random number generation in Java
• Ability to handle user input and display outputs
• Understanding of conditional statements (if-else) and loops

Practical Applications Of The Project:

Also Read: Control Statements in Java: What Do You Need to Know

5. Tic-Tac-Toe Game

The Tic-Tac-Toe Game is a two-player Java game where players take turns marking X or O on a 3x3 grid to win. It features a graphical or console-based interface, win/tie detection, and input validation. This project helps beginners grasp concepts like arrays, loops, condition checks, and game logic which are foundational for building interactive applications.

How to Build It?

What Will You Learn?

• Game Logic Implementation: You’ll write logic to check for a winner or a draw.
• User Input Handling: You’ll take player moves and update the board accordingly.
• 2D Arrays & Loops: You’ll use arrays to store and update the game board dynamically.
• Basic AI (Optional): If no second player is available, you can add a simple bot to play against.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Basic understanding of Java programming and object-oriented principles
• Knowledge of arrays or lists to represent the game grid
• Familiarity with event handling for user input and gameplay
• Ability to implement win conditions and manage game states

Practical Applications Of The Project:

6. Simple Banking Application

The Simple Banking Application is a Java project that simulates operations like creating accounts, checking balances, depositing, and withdrawing money. It includes user authentication, transaction history, and simple account management. This project reflects how real banking systems work at a basic level and is helpful in logic and secure data handling.

How to Build It?

What Will You Learn?

• Account Management: You’ll create and manage user accounts with unique details.
• Transaction Handling: You’ll implement deposit, withdrawal, and balance inquiry functions.
• File Handling & Databases: You’ll store user details securely in a file or database.
• Basic Security Concepts: You’ll learn how to keep transactions safe and prevent unauthorised access.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of data storage and file management for transaction history
• Understanding of basic security concepts (such as user authentication)
• Familiarity with handling user input, performing arithmetic operations, and managing accounts
• Ability to design simple user interfaces for a seamless banking experience

Practical Applications Of The Project:

7. Library Management System

The Library Management System is a Java project that manages book records, user registrations, and borrowing activities in a library. It features book search, issue/return tracking, fine calculation, and user account management. This system is widely used in schools, colleges, and public libraries to streamline operations and reduce manual work.

How to Build It?

What Will You Learn?

• Book & Member Management: You’ll create a system to store book details and track members.
• CRUD Operations: You’ll implement functions to add, update, delete, and search books.
• Database Handling: You’ll store and retrieve book and member records efficiently.
• User Authentication: You’ll add login features to ensure only librarians can manage records.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of database management and SQL for handling book and user data
• Familiarity with CRUD operations to manage library resources
• Experience with user authentication for secure access
• Ability to design user interfaces to interact with the system

Practical Applications Of The Project:

8. Word Counter Tool

The Word Counter Tool is a Java application that counts the number of words, characters, and lines in a text. It features real-time text analysis, input from files or the keyboard, and displays instant results. This tool is helpful for writers, editors, and students to analyse content quickly and improve writing efficiency.

How to Build It?

What Will You Learn?

• String Manipulation: You’ll break down text into words, characters, and sentences.
• Loops & Conditions: You’ll use loops to count words and apply logic to identify sentences.
• File Handling: You’ll allow users to upload text files to count words.
• GUI Development (Optional): You’ll create a simple interface using Java Swing or JavaFX.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of loops and control structures
• Ability to process user input and display results
• Understanding of text formatting and sentence recognition

Practical Applications Of The Project:

Also Read: Top 13 String Functions in Java | Java String [With Examples]

9. ATM Simulation System

The ATM Simulation System is a Java project that mimics the basic functions of an ATM, like withdrawals and balance checks. It features PIN authentication, transaction options, receipt generation, and account balance updates. This project helps beginners understand banking workflows and secure user interactions used in real ATM software.

How to Build It?

What Will You Learn?

• User Authentication: You’ll implement a PIN-based login for security.
• Transaction Handling: You’ll process withdrawals, deposits, and balance inquiries.
• File Handling/Database Basics: You’ll store and update user account details.
• Exception Handling: You’ll manage errors like insufficient balance or incorrect PIN entry.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of user authentication and encryption
• Understanding of database management
• Ability to handle input/output and arithmetic operations
• Experience with administrative features

Practical Applications Of The Project:

10. Simple Airline Reservation System

The Simple Airline Reservation System is a Java application that allows users to book, cancel, and view flight reservations. It features seat availability check, passenger details entry, booking ID generation, and reservation status. This project is important for understanding how practical booking systems handle user data and manage ticketing efficiently.

How to Build It?

What Will You Learn?

• Database Management: You’ll store and manage flight details, bookings, and user data.
• CRUD Operations: You’ll implement Create, Read, Update, and Delete functions for reservations.
• User Authentication: You’ll set up a login system to keep user bookings secure.
• GUI Development: You’ll design an easy-to-use interface for selecting and booking flights.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of Java and object-oriented programming
• Knowledge of database management for storing flight and user data
• Familiarity with user authentication systems
• Ability to design a simple booking interface
• Understanding of event handling and flight search functionality

Practical Applications Of The Project:

11. Smart City Management Project in Java

The Smart City Management Project in Java simulates managing various urban services like traffic, electricity, and waste through a single platform. It features modules for monitoring utilities, reporting issues, and data-driven service management.

How to Build It?

What Will You Learn?

• Database Management: You’ll store and manage information about hotels, restaurants, tourist spots, and transportation.
• CRUD Operations: You’ll add, update, delete, and retrieve city data dynamically.
• User Authentication: You’ll create login features so users can personalize their experience.
• Web Development: Learn how to build interactive pages for different user needs (tourists, businesses, students, etc.).

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of Java web development (using frameworks like Spring or JSP)
• Knowledge of database management to store city information
• Experience with user authentication and account management
• Familiarity with integrating APIs for real-time data (weather, transport)

Practical Applications Of The Project:

12. A Text-Based Adventure Game

A Text-Based Adventure Game is a Java project where players navigate through a story by making choices through text commands. It features branching storylines, player input handling, inventory management, and decision-based outcomes. This project is great for practicing control flow, string handling, and interactive storytelling used in basic game development.

How to Build It?

What Will You Learn?

• Object-Oriented Programming (OOP): You’ll track the player's journey using objects and classes.
• Conditional Logic: You’ll use if-else statements to create different story outcomes.
• Loops & Functions: BKeeps the game running smoothly by repeating actions and using reusable code (functions).
• Data Structures: You’ll learn how to store locations, items, and stats with Arrays and HashMaps.
• User Input Handling – Players will enter commands like Go, Look, Take, Drop, and Use to progress.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Using conditional statements (if/else) to guide the storyline based on user choices
• Understanding loops to repeat story sections and manage input
• Basic string manipulation for story interaction
• File handling for saving game data or progress
• Creativity in designing branching narratives and interactive storylines

Practical Applications Of The Project:

13. Student Grading System in Java

The Student Grading System in Java calculates and assigns grades based on the student scores the user enters. It features score input, automatic grade calculation, result summary, and performance categorisation. This project is helpful in educational settings for evaluating student performance quickly and maintaining academic records digitally.

How to Build It?

What Will You Learn?

• GUI Development: You’ll design a simple Graphical User Interface (GUI) using Java Swing.
• Database Management: You’ll store and manage student records in MySQL Database.
• Data Processing: You’ll calculate total marks, average scores, and student rankings.
• Event Handling: You’ll add buttons and actions to update and display student records.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java GUI frameworks (Swing, JavaFX) for UI design
• Understanding of conditional statements
• Familiarity with database handling
• Ability to create forms
• Experience with loops and arrays

Practical Applications Of The Project:

14. School Management System

The School Management System is a Java application designed to manage student, teacher, and administrative data in one platform. It features modules for attendance, grading, fee tracking, and timetable management. This project is widely used in schools to streamline operations and reduce paperwork.

How to Build It?

What Will You Learn?

• Database Handling: You’ll store student and staff records in MS Access.
• GUI Development: You’ll design an interactive Graphical User Interface (GUI) using Java Swing.
• Role-Based Access: You’ll create different modules for admin, teachers, students, and staff.
• Event Handling: You’ll add functionalities to add, update, and delete records.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java 
• Understanding of database management
• Ability to design a user-friendly interface
• Familiarity with CRUD operations (Create, Read, Update, Delete)
• Basic understanding of file handling

Practical Applications Of The Project:

15. Pharmacy Management System in Java

The Pharmacy Management System in Java helps manage medicine inventory, billing, and customer records efficiently. It features stock tracking, expiry alerts, sales reports, and prescription handling. This project is important for pharmacies to maintain accurate inventory, reduce manual errors, and ensure timely medicine availability.

How to Build It?

What Will You Learn?

• Database Management: You’ll manage and store medicine details, orders, and user records using MySQL.
• GUI Development: You’ll build a user-friendly interface using Java Swing & AWT.
• User Authentication: You’ll allow users to sign up, log in, and manage their profiles.
• Real-Time Features: You’ll integrate a chat system for doctor consultations and order tracking.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java for core functionality
• Understanding of database management
• Ability to implement user authentication 
• Familiarity with GUI frameworks 
• Understanding of e-commerce logic

Practical Applications Of The Project:

16. Supermarket Billing System

The Supermarket Billing System is a Java application that generates bills based on selected items and their quantities. It features product listing, price calculation, tax addition, and final invoice generation. This project is useful in retail settings for quick checkout processes and maintaining accurate sales records.

How to Build It?

What Will You Learn?

• Billing & Invoice Generation: You’ll automatically calculate totals, taxes, and discounts.
• Database Handling: You’ll store product details, prices, and transactions securely.
• GUI Development: You’ll build a user-friendly checkout system using Java Swing.
• Barcode Scanning (Optional): You’ll learn how to fetch product details using barcodes.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of core Java
• Understanding of database management 
• Ability to implement functions
• Familiarity with GUI design
• Basic understanding of file handling

Practical Applications Of The Project:

17. Online Quiz Management System

The Online Quiz Management System is a Java project that allows admins to create quizzes and users to take them online. It features question management, timer settings, automatic scoring, and result display. This project is valuable for e-learning platforms and institutions conducting online assessments efficiently and securely.

How to Build It?

What Will You Learn?

• Question Management: You’ll create, edit, and store quiz questions in a database.
• Real-Time Timer & Score Calculation: You’ll track time limits and auto-grade responses.
• User Authentication: You’ll set up logins for students and admins to keep things secure.
• GUI Development: You’ll design a clean, user-friendly quiz interface with Java Swing.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of core Java
• Understanding of database management 
• Ability to design an intuitive interface
• Familiarity with user authentication
• Ability to implement scoring logic and quiz evaluation

Practical Applications Of The Project:

18. Helpdesk management System

The Helpdesk Management System is a Java application that organises user complaints, support tickets, and service requests. It features ticket creation, status tracking, priority levels, and admin response management. This project is essential to provide efficient customer support and streamline issue resolution processes.

How to Build It?

What Will You Learn?

• Complaint Tracking System: You’ll learn how to build a system where users can submit complaints and get updates.
• User & Admin Roles: You’ll set up roles where users raise complaints, and admins are responsible for managing and resolving them.
• Real-Time Updates: You’ll set up notifications to keep users informed about the status of their complaints.
• Database Management: You’ll learn how to efficiently store and retrieve complaint records.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java 
• Understanding of database management
• Ability to create user interfaces
• Familiarity with user authentication
• Understanding of notification systems

Practical Applications Of The Project:

19. Notes and Password Managing Application

The Notes and Password Managing Application is a Java project that securely stores personal notes and passwords for users. It features encrypted storage, note organisation, password retrieval, and a login system for security. This project users manage sensitive information safely and access it easily when needed.

How to Build It?

What Will You Learn?

• Data Encryption: You’ll learn how to encrypt data for security. 
• User Authentication: You’ll develop a system that allows only authorised users to access stored data.
• Handling Files & Databases: You’ll learn how to store notes and passwords securely.
• GUI design: You’ll create a simple, easy-to-use interface with Java Swing.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java 
• Understanding of secure data storage and encryption techniques
• Ability to design a simple user interface
• Familiarity with database management
• Experience with user authentication

Practical Applications Of The Project:

Also Read: Top 30+ Java Web Application Technologies You Should Master in 2025

20. Supply Chain Management System

The Supply Chain Management System is a Java application that tracks the flow of goods from suppliers to customers. It features inventory management, order processing, shipment tracking, and supplier coordination. This project ensures efficient logistics, reduces delays, and maintains product availability.

How to Build It?

What Will You Learn?

• Inventory Management: You’ll track stock levels to avoid shortages or overstocking. 
• Order Processing: You’ll learn how to manage incoming and outgoing orders smoothly.
• Real-time Tracking: You’ll monitor shipments and deliveries.
• Automation: You’ll build a system to reduce manual work by automating updates and alerts.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Java for system logic and functionality
• Familiarity with Database management
• Knowledge of real-time tracking and status updates
• Experience with UI design for supply chain monitoring
• Understanding logistics and product tracking

Practical Applications Of The Project:

Now, let’s explore the 20 intermediate-level Java project topics

20 Intermediate-Level Java Project Topics

These intermediate-level Java projects build upon basics while introducing multi-layered tasks — such as networking, data retrieval, or more advanced game logic — that push you to think on a broader scale. 

Each idea helps you handle larger codebases and combine various concepts into a cohesive program. As a result, you’ll feel more prepared to tackle everyday coding challenges and stay motivated by practical, engaging goals.

Below are some of the core abilities you can strengthen by working on these Java project topics:

• Network Communication: Explore client-server architecture, socket programming, and secure data transmission.
• Data Retrieval and Persistence: Practice reading, writing, and managing data from different sources, such as local files or databases.
• Concurrency: Learn how to handle multiple threads efficiently, avoiding race conditions and deadlocks.
• UI/UX Elements: Experiment with graphical interfaces and user interactions that enhance the overall experience.
• Error Handling & Debugging: Develop strategies to identify, track, and resolve issues before they affect functionality.
• Project Organization: Integrate various components into a logical structure that remains clear and manageable.

Let’s get started with the projects now.

21. Virtual Private Network (VPN) using Java

This project creates a secure connection over the Internet for private data transfer. It features data encryption, IP masking, secure tunneling, and user authentication. This project is crucial today for protecting user privacy, securing online communication, and bypassing geographic restrictions.

How to Build It?

What Will You Learn?

• Network Security Basics: You’ll learn how VPNs protect data with encryption.
• Tunneling Protocols: You’ll implement secure communication channels.
• User Authentication: You’ll set up login credentials for secure access.
• Server-Client Communication: You’ll enable devices to connect privately over the internet.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java networking libraries
• Understanding of encryption techniques 
• Familiarity with VPN protocols (IPsec, SSL/TLS)
• Understanding of socket programming

Practical Applications Of The Project:

22. Flappy Bird Game

The Flappy Bird Game is a Java project that replicates the popular side-scrolling game where players control a bird through pipes. It features simple graphics, collision detection, score tracking, and increasing difficulty levels. This project is useful for learning game loops, event handling, and object movement in 2D game development.

How to Build It?

What Will You Learn?

• Game Loop & Frame Refreshing: You’ll learn how to implement a continuous game loop for smooth gameplay.
• Physics Simulation: You’ll apply gravity to make the bird fall naturally and handle jumps dynamically.
• Event Handling: You’ll use KeyListener to control the bird’s movement via keyboard inputs.
• Collision Detection: You’ll prevent the bird from passing through obstacles.
• Score Management: You’ll track scores, handle game-over conditions, and restart functionality.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Java for game logic and mechanics
• Java Swing for GUI creation
• Basic collision detection for obstacle interactions
• Game loop knowledge

Practical Applications Of The Project:

Also Read: What is Java API? Definition, Types, and Examples

23. Scientific Calculator in Java

The Scientific Calculator in Java is an application that performs advanced mathematical operations like trigonometry, logarithms, and exponentials. It features a user-friendly interface, real-time calculations, memory functions, and error handling. This project is important for students and professionals needing quick and accurate scientific computations.

How to Build It?

What Will You Learn?

• GUI Development: You’ll create an intuitive and user-friendly calculator interface using Java Swing.
• Event Handling: You’ll capture user input from buttons and process calculations dynamically.
• Mathematical Operations: You’ll implement functions like sin, cos, tan, log, and exponents.
• Error Handling: You’ll prevent division by zero and invalid inputs.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java Math library
• Understanding of GUI design 
• Experience in handling floating-point arithmetic

Practical Applications Of The Project

Also Read: Comprehensive Guide to Exception Handling in Java: Best Practices and Examples

24. Simple Search Engine in Java

The Simple Search Engine in Java allows users to search for keywords within text files or documents. It features keyword matching, result ranking, and highlighted search terms. This project is valuable for understanding basic search algorithms and is a stepping stone to building more advanced search tools.

How to Build It?

What Will You Learn?

• Text Searching Algorithms: You’ll learn how to scan through data using simple search methods.
• Data Handling: You’ll store and retrieve text efficiently from files or a database.
• File Processing: You’ll work with documents and text files to find relevant information.
• GUI Development: You’ll create a simple search bar where users can enter queries and see results.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of data structures (arrays, lists)
• Knowledge of indexing techniques for fast data retrieval
• Experience in ranking algorithms

Practical Applications Of The Project:

Also Read: Master Indexing: Clustered vs. Nonclustered Guide

25. Java-Based Online Voting System

This secure application enables users to vote electronically in elections or polls. It features voter authentication, vote casting, result tallying, and admin control panels. This project is essential for promoting transparent, efficient, and paperless voting in schools, organisations, and small communities.

How to Build It?

What Will You Learn?

• Spring: You’ll learn how to build scalable back-end apps.
• Hibernate: You’ll understand ORM for database management.
• MySQL: You’ll store and retrieve data in a relational database.
• JavaScript: You’ll add interactivity to the front-end.
• HTML/CSS: You’ll design a clean and user-friendly interface.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of user authentication
• Knowledge of encryption techniques
• Experience in creating secure database 

Practical Applications Of The Project:

26. Online Book Store In Java

The Online Book Store in Java is a web-based application that allows users to browse, search, and purchase books online. It features user registration, book catalog, shopping cart, and payment simulation. This project is useful in today’s digital market for understanding e-commerce systems and how online retail platforms function.

How to Build It?

What Will You Learn?

• User Authentication: You’ll implement sign-up and login features for customers.
• Database Management: You’ll store book details, user info, and order history.
• Search & Filter Features: You’ll develop a system that allows users to search books by title, author, or genre.
• Order Processing: You’ll handle book purchases and manage stock levels.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of core Java 
• Understanding of database management 
• Experience in creating simple UI design 
• Experience in payment gateway integration (simulated or real)

Practical Applications Of The Project:

27. CGPA Calculator in Java 

The CGPA Calculator in Java is a tool that computes the Cumulative Grade Point Average based on subjects and grade inputs. It features subject-wise entry, grade conversion, CGPA calculation, and result display. This project is helpful for students and institutions to accurately evaluate academic performance with minimal effort.

How to Build It?

What Will You Learn?

• Grade Calculation: You’ll implement logic to convert marks into GPA and CGPA.
• User Input Handling: You’ll take subject-wise grades and semester details from students.
• Database Management: You’ll store student records, grades, and past calculations.
• GUI Development: You’ll create an interactive interface for entering marks and displaying results.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of mathematical operations
• Knowledge of managing database 
• Familiarity with file handling

Practical Applications Of The Project:

28. Classic Snake Game in Java

The Classic Snake Game in Java is a simple arcade game where the player controls a snake to eat food and grow. It features real-time movement, collision detection, score tracking, and increasing speed. This project is great for learning game development basics like loops, key events, and grid-based logic.

How to Build It?

What Will You Learn?

• Game Mechanics: You’ll implement movement, collision detection, and score tracking.
• Event Handling: You’ll use keyboard controls to navigate the snake.
• Graphics & Animation: You’ll draw game elements and create smooth movements.
• Object-Oriented Programming: You’ll structure the game using classes and objects.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of Java
• Knowledge of event handling
• Experience working with Graphics rendering
• Understanding of Collision detection and scoring system implementation
• Familiarity with game loop experience 

Practical Applications Of The Project:

29. Online Cab Booking System 

The Online Cab Booking System in Java allows users to book cabs, choose routes, and track ride status. It features user registration, cab availability, fare calculation, and booking confirmation. This project reflects practical ride-hailing apps and is useful for understanding logistics, mapping, and service-based systems.

How to Build It?

What Will You Learn?

• User Authentication: You’ll build a system that allows passengers and drivers to log in securely.
• Ride Booking & Fare Calculation: You’ll implement dynamic pricing and trip tracking.
• Database Management: You’ll store user details, ride history, and driver availability.
• Live Status Updates: You’ll learn how to update ride status in real time.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of real-time data handling
• Familiarity with user authentication 
• Experience with database management
• Ability to design a user-friendly interface

Practical Applications Of The Project:

30. Job Portal in Java

This application connects job seekers with employers through an online platform. It features user registration, job posting, resume uploads, application tracking, and admin management. This project is essential today as it simulates how practical hiring platforms function and streamline recruitment processes.

How to Build It?

What Will You Learn?

• User Authentication: You’ll implement login and registration for job seekers and recruiters.
• MySQL: You’ll manage databases to store and retrieve job posting data.
• CSS & Bootstrap: You’ll design and style responsive front-end interfaces.
• Servlet & JSP Handling: You’ll manage dynamic web content using Java technologies.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of database management
• Familiarity with user authentication
• Experience with CRUD operations
• Basic understanding of dynamic web development and session management

Practical Applications Of The Project:

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SAAS Business – What is So Different?

31. Crime Records Management System in Java

The Crime Records Management System in Java helps manage and access crime data including cases, suspects, and investigation details. It features secure login, case entry, search functionality, and report generation. This project is important for modern policing, enabling quick access to records and improving investigation efficiency.

How to Build It?

What Will You Learn?

• Database Handling: You’ll store and retrieve crime records systematically.
• User Authentication: You’ll secure access for officers and administrators.
• Search & Filtering: You’ll quickly find cases by keywords, dates, or categories.
• Report Generation: You’ll generate detailed crime reports for analysis.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of database management
• Familiarity with security measures
• Experience with file management

Practical Applications Of The Project:

32. Color Hunt Gaming Project

The Color Hunt Gaming Project is a Java-based game where players identify and select specific colors within a time limit. It features a colorful interface, timer, score tracking, and increasing difficulty levels. This project is useful for improving concentration and is great for learning GUI handling and event-driven programming in Java.

How to Build It?

What Will You Learn?

• GUI Development: You’ll create an interactive color selection interface.
• Event Handling: You’ll detect and process user clicks on colors.
• Timer Implementation: You’ll set time-based challenges to make the game exciting.
• Randomization: You’ll generate different colors dynamically for each round.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Familiarity with event handling
• Experience with graphics and UI components
• Knowledge of timers and time-based actions
• Ability to implement scoring systems

Practical Applications Of The Project:

33. Online CV/Resume Builder in Java

The Online CV/Resume Builder in Java allows users to create professional resumes by entering personal, academic, and work details. It features customizable templates, data preview, PDF export, and user-friendly form inputs. This project is useful for job seekers and students to generate polished resumes quickly without design skills.

How to Build It?

What Will You Learn?

• Form Handling: You’ll build a system to create and manage user input fields for resumes.
• PDF Generation: You’ll convert user inputs into a structured resume format.
• GUI Development: You’ll design an intuitive interface for users.
• File Handling: You’ll save, retrieve, and manage multiple resumes.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Java for game logic and user interactions
• Familiarity with working with templates 
• Experience in file handling
• Understanding of string manipulation

Practical Applications Of The Project:

34. Weather Information System

The Weather Information System is a Java project that displays real-time weather data based on user-inputted locations. It features city search, temperature display, humidity, wind speed, and weather conditions using APIs. This project is useful for learning API integration and helps users stay informed about weather before travel or planning.

How to Build It?

What Will You Learn?

• API Integration: You’ll fetch live weather data using APIs like OpenWeatherMap.
• JSON Parsing: You’ll extract and display relevant weather details.
• GUI Development: You’ll build a simple, interactive interface for users.
• Networking in Java: You’ll handle HTTP requests and responses.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Java for application logic and UI
• Familiarity with working with APIs 
• Ability to handle and parse JSON or XML data 
• Knowledge of event handling

Practical Applications Of The Project:

Also Read: How to Open a JSON File? A Complete Guide to Creating and Managing JSON Files

35. Exam Seating Arrangement System

The Exam Seating Arrangement System assigns students to seats in examination halls based on predefined rules. It features student data input, hall mapping, auto seat allocation, and printable seating plans. This project is essential for educational institutions to organise exams smoothly and avoid seating conflicts.

How to Build It?

What Will You Learn?

• Data Management: You’ll store and retrieve student and room details.
• Algorithm Development: You’ll automatically assign seats without conflicts.
• GUI Design: You’ll create a user-friendly interface for administrators.
• Database Connectivity: You’ll manage seating records efficiently.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of algorithms
• Experience in working with databases 
• Understanding of sorting and filtering techniques

Practical Applications Of The Project:

36. Traffic Controller System

The Traffic Controller System simulates and manages traffic flow at intersections using signal logic. It features automatic signal timing, congestion detection, emergency overrides, and vehicle count tracking. This project is essential for understanding how smart traffic systems reduce jams and improve road safety in modern cities.

How to Build It?

What Will You Learn?

• Multithreading in Java: You’ll develop a system for simulating real-time traffic movement.
• Data Handling: You’ll store traffic patterns and signal timings.
• Algorithm Development: You’ll implement logic for dynamic signal control.
• GUI Design: You’ll create an interactive dashboard for traffic management.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of algorithms
• Ability to work with real-time data processing
• Familiarity with integrating external data sources

Practical Applications Of The Project:

37. Disaster Management System

The Disaster Management System is designed to coordinate relief efforts and manage information during natural or man-made disasters. It features incident reporting, resource allocation, rescue team coordination, and real-time updates. This project is vital for improving emergency response, minimising damage, and saving lives through organised disaster handling.

How to Build It?

What Will You Learn?

• Database Management: You’ll store disaster reports, resources, and affected areas.
• User Authentication: You’ll create different roles for admins, volunteers, and victims.
• Real-time Alerts: You’ll send notifications about disasters and safety measures.
• Map Integration: You’ll display affected areas for better response planning.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of data management
• Familiarity with decision-making algorithms
• Ability to handle real-time data from external sources (e.g., sensors, reports)

Practical Applications Of The Project:

38. ID Card Generator System

The ID Card Generator System is a Java project that creates digital or printable ID cards using user-provided details and images. It features data input forms, photo uploads, card previews, and PDF export options. This project is helpful for schools, companies, and events needing quick and customisable ID generation.

How to Build It?

What Will You Learn?

• Form Handling: You’ll collect user details and photos for ID creation.
• Image Processing: You’ll resize and place profile pictures on the ID card.
• Database Management: You’ll store employee/student records securely.
• QR Code & Barcode Generation: You’ll add security features to the ID card.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of database management 
• Ability to work with image handling
• Familiarity with document generation libraries (e.g., PDF generation)

Practical Applications Of The Project:

39. Memory Game – Flipping Tiles

The Memory Game – Flipping Tiles is a Java game where players flip cards to find matching pairs within limited attempts. It features a grid layout, score tracking, a timer, and randomised tile positions. This project helps enhance memory skills and teaches GUI design, event handling, and array manipulation in Java.

How to Build It?

What Will You Learn?

• Event Handling: You’ll detect user clicks and reveal tiles.
• Randomization Techniques: You’ll shuffle tiles for a unique game experience every time.
• GUI Design: You’ll create an interactive game board using Java Swing.
• Game Logic Development: You’ll implement win conditions and scoring mechanisms.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Experience with event handling
• Knowledge of timers or countdown mechanisms 
• Familiarity with randomization for shuffling tiles

Practical Applications Of The Project:

40. Chat Application in Java

The Chat Application in Java allows users to send and receive real-time text messages over a network. It features user login, private and group chats, message timestamps, and a simple GUI interface. This project is important for learning socket programming, client-server communication, and building real-time communication tools.

How to Build It?

What Will You Learn?

• Networking in Java: You’ll establish client-server communication using sockets.
• Multithreading: You’ll handle multiple chat users simultaneously.
• Graphical User Interface (GUI): You’ll design a user-friendly chat window.
• Message Encryption: You’ll secure chat data with basic encryption techniques.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of socket programming
• Experience with multithreading
• Understanding of Java I/O 
• Familiarity with handling user input

Practical Applications Of The Project:

Also Read: File Handling in Java: How to Work with Java Files?

Now, let us have a look at the 10 advanced-level java project ideas

10 Advanced-Level Java Project Ideas

Advanced-level Java Projects With Source Code challenge developers to push their skills beyond basic concepts by working on practical, complex systems. These projects often involve advanced topics like networking, multithreading, security, machine learning, and database management. 

By building such systems, developers gain hands-on experience in solving high-level problems, preparing them for professional software development and enterprise-level applications.

Here are key skills you can refine while working on these advanced Java projects:

• Scalability and Performance: Optimize applications to handle high loads and complex data sets, ensuring smooth operation even under pressure.
• Concurrency and Thread Management: Coordinate multiple threads effectively, preventing conflicts and deadlocks in large systems.
• Security and Encryption: Safeguard sensitive user data through authentication, authorisation, and cryptographic methods.
• Comprehensive Testing: Employ strategies for unit, integration, and stress testing to catch issues early and maintain reliability.
• Architectural Design Patterns: Apply solutions like MVC, Factory, or Singleton to build maintainable and modular code structures.
• Advanced Debugging: Diagnose and fix complicated errors that arise in multithreaded or distributed environments.

Let’s explore the projects now.

41. Social Networking Site in Java

This web-based platform allows users to create profiles, connect with friends, and share updates. It features user authentication, friend requests, messaging, posts, comments, and media sharing. This project is vital as it mimics practical social media platforms and teaches web development, database handling, and user interaction at scale.

How to Build It?

What Will You Learn?

• User Authentication & Profile Management: You’ll create secure login systems and user profiles.
• Database Management: You’ll store user data, posts, messages, and connections.
• Real-Time Interaction: You’ll implement chat, notifications, and friend requests.
• Web Development: You’ll work with front-end and back-end technologies for a smooth user experience.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of socket programming
• Experience with multithreading
• Understanding of Java I/O
• Basic knowledge of GUI design
• Familiarity with handling user input

Practical Applications Of The Project:

Also Read: A Guide to Spring Boot Annotations: 16 Annotations and Best Practices for 2025

42. Bug Tracking System

The Java bug Tracking System is a tool for recording, tracking, and managing bugs or issues in software projects. It features bug reporting, status updates, priority setting, user roles, and progress tracking. This project is crucial for software teams to ensure quality control, streamline development, and fix issues efficiently.

How to Build It?

What Will You Learn?

• Issue Logging & Categorization: You’ll track bugs based on priority, status, and type.
• User Role Management: You’ll assign roles (admin, developer, tester) for better workflow.
• Database Management: You’ll store and retrieve bug reports efficiently.
• Status Tracking & Updates: You’ll manage bug lifecycles (Open, In Progress, Resolved, Closed).

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of database management
• Knowledge of CRUD operations 
• Experience with user authentication
• Familiarity with workflow management and task assignment systems
• Ability to implement real-time updates 
• Basic report generation and exporting features

Practical Applications Of The Project:

43. Text Editor in Java

The Text Editor in Java is a desktop application that allows users to write, edit, and save plain or formatted text. It features file operations, text formatting, search functionality, and keyboard shortcuts. This project is valuable for learning GUI development and mimics practical editors like Notepad or WordPad.

How to Build It?

What Will You Learn?

• File Handling: You’ll create an application to open, save, and edit text files.
• Rich Text Formatting: You’ll implement bold, italic, underline, and font styles.
• GUI Development: You’ll build a user-friendly text editor interface.
• Keyboard Shortcuts & Event Handling: You’ll improve user experience with quick commands.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java Swing or JavaFX
• Understanding of file I/O operations
• Experience with event handling
• Familiarity with text manipulation and formatting
• Ability to implement undo/redo functionality using stacks
• Search functionality implementation

Practical Applications Of The Project:

44. Digital Steganography in Java

Digital Steganography in Java is a project that hides secret data within media files like images or audio. It features encryption, file embedding, data extraction, and password protection. This project is important for secure communication, as it conceals sensitive information without drawing attention.

How to Build It?

What Will You Learn?

• Image Processing: You’ll learn how to hide and extract messages from images.
• Bit Manipulation: You’ll modify pixel values to embed data without noticeable changes.
• Cryptography Basics: You’ll ensure secure data hiding and retrieval.
• GUI Development: You’ll create an interface for encoding and decoding messages.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of data encoding and decoding techniques
• Knowledge of encryption algorithms
• Experience with image, audio, or video file manipulation
• Familiarity with file I/O operations
• Basic knowledge of hashing 
• Understanding of steganography in media files

Practical Applications Of The Project:

45. Criminal Face Detection System

The Criminal Face Detection System in Java identifies and matches faces against a database of known criminals using image processing. It features facial recognition algorithms, database matching, alert generation, and real-time monitoring. This project is important for enhancing public security and assisting law enforcement in identifying suspects efficiently.

How to Build It?

What Will You Learn?

• Face Recognition Algorithms: You’ll learn how Eigenfaces, LBPH (Local Binary Patterns Histogram), and deep learning models recognize faces.
• Image Processing with OpenCV: You’ll work with real-time image and video processing.
• Machine Learning Basics: You’ll train models to differentiate between known and unknown individuals.
• Database Management with MySQL: You’ll store and manage criminal records efficiently.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java libraries (OpenCV, JavaCV) and AI concepts
• Familiarity with machine learning models
• Understanding of real-time image or video processing in Java
• Basic understanding of neural networks

Practical Applications Of The Project:

46. Airline Reservation System with Advanced Features

The Airline Reservation System with Advanced Features in Java allows users to book, cancel, and manage flights with enhanced functionality. It features real-time seat availability, dynamic pricing, loyalty points, multi-user roles, and e-ticket generation. This project is crucial for simulating practical airline systems and understanding complex data management and transaction workflows.

How to Build It?

What Will You Learn?

• Database Handling: You’ll store passenger details, bookings, and payments.
• User Authentication: You’ll secure login for passengers and admins.
• Payment Integration: You’ll implement online payment gateways.
• Real-Time Seat Selection: You’ll allow users to choose available seats dynamically.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of Java Swing 
• Familiarity with Java Servlets 
• Experience with MySQL 
• Understanding of e-ticketing systems and online payment integration
• Proficiency in implementing security protocols

Practical Applications Of The Project:

47. Advanced Chatting Application

This enables users to communicate in real time with enhanced messaging features over a network. It features private and group chats, file sharing, message encryption, online status, and chat history. This project is essential for understanding secure, scalable, and feature-rich communication systems used in modern messaging platforms.

How to Build It?

What Will You Learn?

• Socket Programming: You’ll establish client-server communication.
• Multithreading: You’ll handle multiple users in real time.
• Encryption & Security: You’ll secure messages using encryption.
• Database Handling: You’ll store chat history and user data.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of Java networking and socket programming
• Familiarity with multithreading
• Understanding of data encryption and security protocols
• Ability to implement file sharing and media transmission
• Experience with GUI design using Java Swing or JavaFX
• Knowledge of server-client architecture

Practical Applications Of The Project:

48. Customer-Relationship Manager System

The Customer-Relationship Manager System in Java helps businesses manage customer interactions, sales, and service-related data effectively. It features customer profiling, interaction tracking, lead management, follow-up reminders, and report generation. This project is important for improving customer satisfaction, boosting sales, and streamlining business communication and support processes.

How to Build It?

What Will You Learn?

• User Management: You’ll learn how to handle customer and sales representative data.
• Database Integration: You’ll store customer details, communication history, and transactions.
• Automated Task Management: You’ll schedule follow-ups and reminders.
• Data Visualization: You’ll generate reports on sales and customer interactions.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of database management
• Familiarity with CRUD operations
• Understanding of data analytics 
• Experience in report generation and data visualisation

Practical Applications Of The Project:

49. Email System

The Email System in Java is a project that allows users to send, receive, and manage emails over a network. It features user authentication, inbox and outbox management, file attachments, and spam filtering. This project is essential for understanding how real email services operate, including server-client communication and message handling.

How to Build It?

What Will You Learn?

• Email Transmission Protocols: You’ll learn how emails are sent using SMTP and retrieved via POP3 or IMAP.
• User Authentication & Security: You’ll implement login, password encryption, and access control.
• Attachment Handling: You’ll support sending and receiving files via email.
• Email Storage & Management: You’ll save emails in a structured database for easy retrieval.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Knowledge of SMTP and POP3 for email handling
• Java Mail API for email management
• Handling attachments and email formatting (HTML, plain text)
• User authentication and security (SSL/TLS)
• UI design for email interface with inbox, compose, and search features

Practical Applications Of The Project:

50. Advanced Sudoku Game

The Advance Sudoku Game in Java is a logic-based puzzle in which users fill a 9x9 grid following Sudoku rules. It features multiple difficulty levels, a timer, hint system, error detection, and an auto-solve option. This project is essential for learning algorithm design, backtracking, and creating interactive puzzle games with a strong UI.

How to Build It?

What Will You Learn?

• Sudoku Grid Generation: You’ll learn how to use backtracking algorithms to create solvable puzzles.
• Game Logic Implementation: You’ll validate user inputs and ensure proper Sudoku rules are followed.
• Graphical User Interface (GUI): You’ll design an interactive and visually appealing Sudoku board.
• Hint System & Auto-Solver: You’ll implement an AI-powered solver to assist players.

Tech Stack And Tools Needed For The Project

Skills Needed For The Project

• Understanding of Sudoku rules and solving algorithms
• Java Swing/JavaFX for interactive UIs
• Auto-validation and hint system implementation
• Puzzle generation using AI or randomisation
• Event handling and game logic development

Practical Applications Of The Project:

How to Choose the Best Java Projects?

With so many Java Projects With Source Code ideas available, choosing the right one can feel overwhelming. Should you build a game, a web app, or perhaps something powered by AI? Choose a project that matches your skills while pushing you to learn something new.

Here are a few tips to help you make the best choice:

• Start with Your Interests: Love gaming? Try building a Java-based game. Interested in AI? Worked on machine learning projects in Java. When you enjoy the topic, coding becomes more fun!
• Consider Your Skill Level: If you're a beginner, start with simple Java projects like a library management system or a currency converter. If you’re experienced, go for advanced Java project topics like an AI-powered chatbot or a social networking site.
• Think About Real-World Applications: Projects that solve real problems or mimic industry use cases (like an Online Voting System or Job Portal) will make your portfolio stand out.
• Prioritise Learning Over Complexity: You don’t have to build the most complex project. Focus on learning important concepts like OOP, databases, and frameworks while keeping things manageable.
• Choose a Scalable Project: Start small and add more features later. For example, a basic chat app can evolve into a fully encrypted messaging system with video calls!

Remember, the best project is one that challenges you, teaches you something new, and keeps you engaged. So, pick wisely and start coding!

How Can upGrad Help You?

Building Java projects is one of the best ways to strengthen your programming skills and gain hands-on experience. Practical Java projects helps you understand concepts like object-oriented programming and database integration. 

But how can you learn these concepts effectively and build industry-level projects?

This is where upGrad comes in. With 500+ courses in software development, AI, and cloud computing, upGrad offers hands-on learning and expert mentorship.

Here’s a list of courses offered by upGrad that will help you in your journey:

• Java Object-oriented Programming
• ChatGPT for Developers
• Learn Basic Python Programming
• Fundamentals of Cybersecurity
• JavaScript Basics from Scratch
• Advanced SQL: Functions and Formulas

Not sure where to start? Book a free career counseling demo call with upGrad’s experts! You can also visit upGrad’s offline centers to explore more learning opportunities.

Boost your career with our popular Software Engineering courses, offering hands-on training and expert guidance to turn you into a skilled software developer.

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Source Codes:

1.  Currency Converter Application
2. Brick Breaker Game
3. Attendance Management System
4. Number Guessing Game
5. Tic-Tac-Toe Game
6. Simple Banking Application
7. Library Management System
8. Word Counter Tool
9. ATM Simulation System
10. Simple Airline Reservation System
11. Smart City Management Project in Java
12. A Text-Based Adventure Game
13. Student Grading System in Java
14. School Management System
15. Pharmacy Management System in Java
16. Supermarket Billing System
17. Online Quiz Management System
18. Helpdesk management System
19. Notes and Password Managing Application
20. Supply Chain Management System
21. Virtual Private Network (VPN) using Java
22. Flappy Bird Game
23. Scientific Calculator in Java
24. Simple Search Engine in Java
25. Java-Based Online Voting System
26. Online Book Store In Java
27. CGPA Calculator in Java 
28. Classic Snake Game in Java
29. Online Cab Booking System 
30. Job Portal in Java
31. Crime Records Management System in Java
32. Color Hunt Gaming Project
33. Online CV/Resume Builder in Java
34. Weather Information System
35. Exam Seating Arrangement System
36. Traffic Controller System
37. Disaster Management System
38. ID Card Generator System
39. Memory Game – Flipping Tiles
40. Chat Application in Java
41. Social Networking Site in Java
42. Bug Tracking System
43. Text Editor in Java
44. Digital Steganography in Java
45. Criminal Face Detection System
46. Airline Reservation System with Advanced Features
47. Advanced Chatting Application
48. Customer-Relationship Manager System
49. Email System
50. Advanced Sudoku Game