Java Minor Projects for Hands-On Learning

Discover a curated list of Java minor projects designed for beginners and intermediate learners. Build real-world applications using core Java, OOPs, file handling, and more.

Project 1: Smart Inventory and Order Management System

Overview: Build a robust system to manage inventories, supplier stocks, and customer orders for a small-to-medium business. Industry Relevance: Retail, e-commerce, logistics, warehouse management.

Key Features

  • Admin login with full access
  • Add/update/delete products
  • Manage suppliers and purchase orders
  • Real-time inventory tracking
  • Low-stock alerts using scheduled threads
  • Order management (add/edit/remove orders)
  • Invoice generation
  • Export reports to PDF/Excel
  • Role-based access control (Admin/Manager/Staff)

Tech Stack

  • Core Java, JDBC, Java Swing for UI
  • MySQL/PostgreSQL
  • Multithreading for stock updates
  • Java IO/File Handling for reports
  • Collection Framework for data manipulation
  • Stream API for sorting/filtering

Learning Outcomes

  • Real-world product CRUD operations
  • Thread management for concurrent stock updates
  • Working with I/O, JDBC, UI, and security
  • Industry-grade architecture
 

Project 2: Job Portal System (Mini-Naukri.com)

Overview: Create a job portal where employers post jobs and candidates apply. Industry Relevance: HR, recruitment platforms, freelancing marketplaces.

Key Features

  • User registration/login (Employer/Candidate/Admin)
  • Post jobs (by employer)
  • Apply to jobs (by candidate)
  • Search/filter jobs (by role, location, salary, experience)
  • Resume upload and management (File Handling)
  • Admin panel for moderation and analytics
  • Email alerts for job matches (Scheduled Tasks)

Tech Stack

  • Core Java + JDBC
  • Spring Boot (optional for advanced learners)
  • MySQL
  • JavaMail API (optional for alerts)
  • Regex for validation
  • Stream API & Lambda for filtering and job sorting

Learning Outcomes

  • Large scale CRUD system
  • File handling with resume storage
  • Real-world data filtering and search logic
  • Role-based authentication and multithreaded scheduling
 

Project 3: Online Examination System with Proctoring (Mini Exam Portal)

Overview: Develop a secure, interactive online exam portal with MCQs, timer, user tracking, and result analysis. Industry Relevance: EdTech, LMS, colleges, online assessments.

Key Features

  • Student and admin login
  • Add exams, questions, and topics
  • Exam code-based access
  • Timer-controlled exams
  • Auto-evaluation and result publishing
  • View attempts, correct/incorrect answers
  • Store results with timestamp
  • Export reports (PDF/CSV)

Tech Stack

  • Java Core Concepts, & Swing
  • JDBC + MySQL
  • Multithreading for timers and submissions
  • Java IO for exporting reports
  • Collections and Streams for evaluation
  • Exception Handling for timeouts and invalid input

Learning Outcomes

  • Time-based application logic
  • Dynamic UI building with concurrency
  • MVC design pattern
  • Real-world examination workflow implementation
 

Project 4: Personal Finance Tracker & Budget Planner

Project Overview: A system to help users plan their expenses, track income, generate monthly reports, and visualize spending trends. Industry Relevance: Fintech, expense tracking apps, personal utility software.

Key Features

  • User login and secure access
  • Add daily expenses and income
  • Categorize transactions (Food, Rent, Travel, etc.)
  • Set monthly budgets
  • Visual analytics using Java charts/graphs
  • Expense alerts (multithreading)
  • Export financial summary to PDF
  • Search/filter transactions

Tech Stack

  • Core Java, JavaFX UI or Java Swing UI
  • JDBC + MySQL
  • Java IO for logs
  • Multithreading for alerts
  • Regex for input validation
  • Collections/Streams for transaction filtering
  • Chart Libraries (e.g., JFreeChart)

Learning Outcomes

  • Daily utility app development
  • Financial recordkeeping
  • Advanced UI and multithreading
  • Budget-based logical problem solving
 

Project 5: Hotel Booking & Management System

Overview: Build a complete booking system for a hotel to manage rooms, reservations, customers, billing, and staff. Industry Relevance: Hospitality, travel, real estate, ERP systems.

Key Features

  • Admin and Reception login
  • Room categories (AC/Non-AC, Suite, Deluxe)
  • Check-in / Check-out system
  • Room availability search
  • Customer details management
  • Bill generation with tax and service charge
  • Date-wise room allocation using concurrency
  • Report generation and archiving

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Multithreading for concurrent room booking
  • Java IO for customer log archiving
  • Collection Framework for room mapping
  • Stream API for filtering/search
  • Regex for date validation

Learning Outcomes

  • System-level application
  • Booking algorithms
  • Time/date-based operations
  • End-to-end data flow design
 

Project 6: E-Learning Management System (LMS)

Overview: Develop a complete LMS where admins upload courses, students enroll, and trainers conduct exams. Industry Relevance: EdTech platforms, university LMS, corporate training.

Key Features

  • Admin: Manage users, courses, trainers, content
  • Trainer: Upload course materials (PDFs, videos), create tests
  • Student: Enroll in courses, take exams, download certificates
  • MCQ-based quizzes with auto-evaluation
  • Certificate generation using PDF export
  • Dashboard for each role

Tech Stack

  • Java Core Concepts, JavaFX or JSP/Servlets
  • JDBC + MySQL
  • Java File IO for study materials
  • Scheduled tasks for exam reminders
  • Stream API for ranking, sorting scores

Learning Outcomes

  • Complex role-based access
  • Real-time data handling
  • Certificate/document generation
  • Modular application design
 

Project 7: Centralized Library Management System

Overview: Create a centralized digital system to manage book borrowing, return, stock, and member records. Industry Relevance: Schools, colleges, public libraries, digital content platforms.

Key Features

  • Librarian/Admin Login
  • Add/Update/Delete books and categories
  • Borrowing and return tracking with due dates
  • Fine calculation for late returns
  • Book search with filters (regex & streams)
  • Member registration & history

Tech Stack

  • Java Core Concepts
  • JavaFX or Spring Boot
  • JDBC + MySQL
  • Multithreading for due date reminders
  • File Handling for logs
  • Collections for book history tracking

Learning Outcomes

  • Complete CRUD operations
  • Date/time handling
  • Concurrency for task reminders
  • Custom input validations with regex
 

Project 8: Vehicle Rental System (Car/Bike Rentals)

Overview: Design a rental platform where customers can search and book vehicles, and the admin manages bookings and inventory. Industry Relevance: Travel, tourism, urban mobility apps (like Zoomcar, Drivezy)

Key Features

  • Customer registration/login
  • Vehicle categories and filtering
  • Booking with date range and time slots
  • Availability management using concurrency
  • Payment summary generation
  • Admin panel with reports and earnings

Tech Stack

  • Java Core Concepts
  • Spring Boot
  • JDBC + MySQL
  • Java Date/Time API
  • Concurrency for availability handling
  • I/O for rental agreement logs

Learning Outcomes

  • Industry-grade booking system logic
  • Concurrency in booking flow
  • Date/time complexity handling
  • MVC structure and data validation
 

Project 9: Student Result Management System (SRMS)

Project Overview: Build a system for entering, analyzing, and reporting student marks, grades, and overall performance. Industry Relevance: Schools, colleges, coaching centers, academic ERP.

Key Features

  • Admin and Teacher login
  • Create students and subjects
  • Enter marks for multiple subjects
  • Grade generation logic
  • Class-wise rank list using streams
  • Export report cards to PDF
  • Performance graphs (optional: JFreeChart)

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Stream API for ranking and filtering
  • I/O for exporting data
  • Collections for sorting student records

Learning Outcomes

  • Real-world grading systems
  • Excel/PDF exports
  • Stream-based analysis
  • Reusable code using OOP
 

Project 10: Hospital Management System

Overview: Create a hospital ERP for managing patients, doctors, appointments, and billing. Industry Relevance: Healthcare clinics, hospitals, telemedicine platforms.

Key Features

  • Admin, Doctor, and Receptionist logins
  • Manage patients and medical records
  • Book/cancel appointments
  • Prescription management
  • Doctor schedules and availability
  • Bill generation with service breakdown

Tech Stack

  • Java Core Concepts, JavaFX or JSP/Spring Boot
  • JDBC + MySQL
  • Multithreading for doctor availability and reminders
  • File I/O for prescriptions
  • Collections for patient record management

Learning Outcomes

  • Complex object relationships (Patient, Doctor, Visit)
  • Real-world scheduling algorithms
  • Report and billing generation
  • Full-stack data-driven system
 

Project 11: Crime Record & Criminal Tracking System

Overview: Design a centralized system to track FIRs, criminal records, police station jurisdiction data, and case status updates. Industry Relevance: Used in law enforcement, public safety, and surveillance software systems.

Key Features

  • Role-based login (Admin, Police Officer, Inspector)
  • Register FIRs with timestamp and complaint details
  • Add/view criminal records with biometrics (photo, fingerprint reference)
  • Track open and closed cases
  • Search by name, date, location, status (using Regex, Streams)
  • Generate crime reports monthly/yearly

Tech Stack

  • Java Core Concepts
  • JavaFX or Spring Boot
  • JDBC + MySQL
  • Java I/O for crime logs and report backups
  • Multithreading for report generation and notifications
  • Advanced search using Streams and filters

Learning Outcomes

  • Complex data modeling (cases, criminals, FIRs)
  • Filtering, data summarization
  • Multi-role authentication
  • File logging and I/O-based record keeping
 

Project 12: Employee Payroll Management System

Overview: Build a software that automates payroll generation, tax calculations, and salary slips.  Industry Relevance: HR systems, enterprise software, startups.

Key Features

  • Admin & HR logins
  • Add/edit employee profiles
  • Calculate salary with components (basic, HRA, DA, bonus, deductions, taxes)
  • Attendance tracking
  • Auto-generate payslips (PDF)
  • Monthly report for management

Tech Stack

  • Java Core Concepts, JavaFX or JSP
  • JDBC + MySQL
  • Java I/O for payslip and payroll exports
  • Collections and Stream API for tax computations
  • Threading for scheduled payslip creation

Learning Outcomes

  • Real-world HR logic and salary calculations
  • Integration with file export (PDF/text)
  • Date-wise record management
  • Exception handling for tax slabs & invalid deductions
 

Project 13: Online Movie Ticket Booking System (Mini BookMyShow)

Overview: Create a system where users can view movie listings, check seat availability, and book tickets.  Industry Relevance: Entertainment industry, online ticket platforms.

Key Features

  • User login/registration
  • View movie shows by city, date, screen
  • Real-time seat selection (handle concurrency)
  • Book, cancel tickets with confirmation
  • Admin panel for show timings and pricing
  • Ticket PDF generation or confirmation code via File I/O

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Multithreading for concurrent booking
  • File handling for ticket logs
  • Stream API for seat availability filtering

Learning Outcomes

  • Seat selection logic
  • Concurrent booking handling
  • Real-world booking workflow
  • Admin-user access control
 

Project 14: Event Management & Registration System

Overview: Build a system to manage events, conferences, seminars, with attendee registration and slot management. Industry Relevance: Corporate, college fests, government exhibitions.

Key Features

  • Create events (webinars, fests, job fairs)
  • Register participants with ticket type
  • Time slot allocation with conflict check
  • Print entry passes with QR or ticket ID
  • Admin reports on attendees, category, slot status

Tech Stack

  • Java Core Concepts, JavaFX or JSP
  • JDBC + MySQL
  • File I/O for pass/ticket generation
  • Multithreading for time slot checks
  • Collections & Stream API for participant analysis

Learning Outcomes

  • Time conflict management
  • Bulk participant import/export
  • Real-time registration logic
  • Data-driven filtering for reports
 

Project 15: Transport Booking & Route Management System (for Bus/Taxi)

Overview: Develop a software to manage routes, vehicles, bookings, and fare calculations. Industry Relevance: Public transport, travel aggregators, logistics startups.

Key Features

  • User login to book tickets
  • Admin to manage vehicles, drivers, routes
  • Distance-based fare calculation (with slabs)
  • Vehicle capacity & seat management
  • View booked vs available seats in real-time
  • Cancel, reschedule, and reassign routes

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Multithreading for managing real-time booking
  • File I/O for logs and receipts
  • Regex & Stream API for route filters

Learning Outcomes

  • Complex route management
  • Live seat allocation & concurrency
  • Fare logic & refund policies
  • Admin-user data isolation
 

Project 16: Visitor Management & Security Gate Pass System

Overview: Develop a system to track and manage visitors entering premises like corporate offices, universities, or apartment buildings. Industry Relevance: Used in corporates, real estate, schools, co-working spaces for visitor logs and safety compliance.

Key Features

  • Role-based login: Security, Admin, Resident
  • Visitor entry logging with photo and contact details
  • Generate Gate Pass (PDF/Print)
  • Validate visitor against pre-approvals or blacklists
  • Visit duration tracking and alerts for overstay
  • Real-time dashboard for today’s visitors

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • File I/O for gate pass generation
  • Stream API for live filtering
  • Scheduled threads for overstayed alerts

Learning Outcomes

  • Real-time monitoring logic
  • Security workflows and validations
  • File exports, concurrency
  • Regex + Stream integration
 

Project 17: Online Voting & Election System (with Role & IP Validation)

Overview: Create a secure voting system for online polls, elections, or feedback surveys, allowing only authorized users to vote once. Industry Relevance: Used by schools, clubs, organizations, and HR teams (for surveys or internal elections).

Key Features

  • Admin panel to create/edit elections
  • User login with voter ID validation
  • IP/device check or OTP simulation (optional security layer)
  • Allow single vote per user with timestamp
  • Auto count of votes and live results
  • Generate pie charts for results

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • File I/O for logs and report export
  • Optional: JavaMail for OTP logic
  • Concurrency for voting session timers

Learning Outcomes

  • IP/device validation logic
  • Secure access and vote integrity
  • Report generation and real-time charts
  • Threading for timed events
 

Project 18: Complaint Management & Ticketing System

Overview: Design a platform for users to raise complaints/tickets and track their resolution status. Industry Relevance: Customer support, facility management, municipality services.

Key Features

  • User/Admin login
  • Raise complaint with category, priority
  • Auto-assign to technician/department
  • Track ticket status (open, in-progress, resolved)
  • Notification or alert simulation for updates
  • Auto-escalation if unresolved after deadline

Tech Stack

  • Java Core Concepts, JavaFX or JSP
  • JDBC + MySQL
  • Java Timer & ScheduledExecutorService
  • File I/O for ticket logs
  • Stream API for filtering (e.g., high-priority open)

Learning Outcomes

  • Ticket lifecycle logic
  • Escalation and SLA-based automation
  • Priority-based sorting and filtering
  • File logging and history tracking
 

Project 19: Freelance Marketplace System (Like Fiverr Clone)

Overview: Develop a platform where clients post jobs and freelancers apply with bids, milestone tracking, and messaging. Industry Relevance: Very high! Freelance systems are the backbone of gig economy platforms like Fiverr, Freelancer, Upwork.

Key Features

  • Role-based login: Client, Freelancer, Admin
  • Post jobs (Client), Browse/apply jobs (Freelancer)
  • Proposal submission with price and timeline
  • Chat simulation between client and freelancer
  • Admin manages disputes, job closures, reviews
  • Payment simulation (mock wallet balance)

Tech Stack

  • Java Core Concepts, JavaFX or JSP
  • JDBC + MySQL
  • Stream API for filtering jobs, sorting by rating/price
  • Regex for job category/tag search
  • Threading for job bidding timers or review reminders

Learning Outcomes

  • Complex object relationships (users ↔ jobs ↔ proposals)
  • Role-based actions and chat simulation
  • Marketplace logic (filter, search, rating)
  • Optional: file attachments, review system
 

Project 20: Banking Transaction Monitoring System (with Suspicious Activity Detection)

Overview: Develop a backend simulator for a bank to monitor transactions and flag suspicious patterns (e.g., rapid withdrawals, round numbers, login from new IPs). Industry Relevance: Fintech, cybersecurity, auditing, fraud detection.

Key Features

  • Admin and Customer logins
  • Deposit, withdraw, and transfer simulation
  • Audit logs for all transactions
  • Rule-based suspicious activity flagging (e.g., >3 transactions in 1 min)
  • Daily transaction summaries
  • Regex for pattern detection in remarks (e.g., “urgent”, “cash”)

Tech Stack

  • Java Core + JDBC + MySQL
  • Java I/O for transaction logs
  • Stream API for summarizing and filtering
  • Timer threads for batch processing

Learning Outcomes

  • Fraud detection rule implementation
  • Financial data integrity
  • Data summarization and logging
  • Security-based use case in core Java
 

Project 21: Personal Document Manager (with Tags, Search & Reminders)

Overview: Build a utility to store, categorize, search, and set reminders for important documents like PAN, Aadhar, certificates, insurance, receipts, etc. Industry Relevance: Digital recordkeeping, personal document vaults, HR/Employee self-service tools.

Key Features

  • Secure login and file upload (PDFs, Images)
  • Categorize documents (ID, Finance, Education, etc.)
  • Add tags for quick search (using regex)
  • Search documents by tag, name, or type
  • Set renewal/reminder dates (e.g., policy expiry)
  • Notify on due dates using background threads

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Java IO/File Handling for uploads
  • Multithreading for reminders
  • Regex + Stream API for smart search

Learning Outcomes

  • Real-world file management
  • File metadata storage and searching
  • Background task automation
  • Practical tagging system
 

Project 22: Daily Planner & To-Do Manager (Productivity Tracker)

Overview: Create a personal productivity app that helps users schedule tasks, mark progress, and generate reports of productivity trends. Industry Relevance: Widely used in startups, personal wellness, time tracking, and self-improvement apps.

Key Features

  • Add/Edit/Delete tasks with due date and priority
  • Set repeating tasks (e.g., daily, weekly)
  • Notifications/reminders via threading
  • Mark tasks as done, in-progress, or postponed
  • Generate weekly/monthly task completion summary
  • Optional CSV export or PDF report

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • File I/O for exporting reports
  • Multithreading for scheduled reminders
  • Stream API for sorting/filtering by priority/date

Learning Outcomes

  • Date/time operations
  • Reminder and scheduling logic
  • Calendar-based UI design
  • Priority-based sorting/filtering
 

Project 23: Offline Notes Taking & Backup System

Overview: Develop a local desktop notes manager with backup, search, and categorization features. Industry Relevance: Utility software used by students, professionals, writers, developers.

Key Features

  • Add/edit/delete text notes
  • Categorize notes into folders (e.g., Work, Study, Ideas)
  • Auto-save draft functionality
  • Daily backup of notes (into .txt or JSON)
  • Search using keywords or tags (regex)
  • Export all notes to PDF or compressed zip

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • File I/O for storage (can be JSON or plain text)
  • Scheduled threading for backups
  • Regex search over content/titles
  • Optional: SQLite or flat-file DB

Learning Outcomes

  • Real-time file handling
  • Local data backup logic
  • Content search and classification
  • Productivity utility development
 

Project 24: Expense Splitter & Group Budget Manager

Overview: Build a system that helps users split expenses among groups (e.g., friends, roommates) and track who owes what. Industry Relevance: Used in household apps, travel groups, event budget tools (like Splitwise).

Key Features

  • Create expense groups (e.g., “Trip to Goa”)
  • Add members, assign individual shares
  • Record shared expenses and contributions
  • Auto-calculate balances and who owes whom
  • Export balance sheet or reports
  • Add comments/remarks for each transaction

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL
  • Stream API for balance calculation
  • File I/O for report generation
  • Regex for filtering expenses/comments

Learning Outcomes

  • Collaborative financial logic
  • Math-heavy backend computation
  • Balancing algorithm design
  • Multi-user record management
 

Project 25: Offline Desktop Dictionary & Word Trainer

Overview: Create a vocabulary builder and dictionary app with word lookup, pronunciation tips, quizzes, and daily word alerts. Industry Relevance: Used in language learning, school education, competitive exam prep apps.

Key Features

  • Local word database with meanings, usage, synonyms
  • Search words by prefix/suffix/contains
  • Daily word-of-the-day popup
  • Create personalized word list (MyWords)
  • Add new words and meanings manually
  • Take MCQ quizzes for memorization

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC or embedded DB (like SQLite)
  • File I/O for exporting vocabulary lists
  • Scheduled threads for daily alerts
  • Stream API for searching/filtering

Learning Outcomes

  • Dictionary search logic
  • Content indexing and filtering
  • Education-oriented application flow
  • Real-time alerts and UI integration
 

Project 26: Resume Builder & Portfolio Generator

Overview: Build a desktop tool to create resumes and generate online/offline personal portfolios from user input. Industry Relevance: Career portals, HR tools, student career services, freelancing profiles.

Key Features

  • Fill forms for personal details, education, skills, experience, etc.
  • Generate professional resume templates (PDF)
  • Optional online portfolio generation (HTML pages)
  • Export resumes with dynamic formatting
  • Save/load multiple profiles

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • File I/O for storing profile data
  • PDF generation using iText or Apache PDFBox
  • Optional: HTML template rendering

Learning Outcomes

  • Data-driven template generation
  • Resume formatting logic
  • Export automation
  • UI/UX and file export skills
 

Project 27: Unit Converter & Scientific Calculation Tool

Overview: Create a multi-purpose calculator and unit converter (length, weight, temperature, currency, etc.) with offline and plugin support. Industry Relevance: Educational software, engineering tools, mobile utilities.

Key Features

  • Scientific calculator (trig, log, factorial, etc.)
  • Unit conversions with real-time switching
  • Add new custom conversion types via config files
  • Optional currency rates update using JSON file
  • Calculation history logging

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • Collections + File I/O (JSON or TXT for config)
  • Stream API for dynamic operations
  • Exception handling for invalid input

Learning Outcomes

  • Math operations logic
  • Dynamic config loading
  • Reusable calculation modules
  • Plugin-like extensibility
 

Project 28: Local Email Client (Desktop Mail Reader)

Overview: Create a local email client that can connect to a mailbox (e.g., Gmail via IMAP/SMTP), fetch, display, and manage emails. Industry Relevance: Enterprise tools, CRM, communication suites.

Key Features

  • User login and IMAP/SMTP config
  • Fetch inbox emails and display with pagination
  • Send emails from the app
  • Compose, forward, delete, search emails
  • Save selected emails locally (TXT/PDF) 

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JavaMail API
  • File I/O for saving drafts/emails
  • Regex and Streams for email search

Learning Outcomes

  • Email protocol handling (IMAP/SMTP)
  • GUI form and mail formatting
  • Security and user credentials
  • Real-world communication utility
 

Project 29: Time Tracker & Work Logger (for Freelancers & Remote Workers)

Overview: Build a personal utility to track how much time users spend on each task, daily/weekly, with analytics and report generation. Industry Relevance: Freelancing, remote work monitoring, productivity apps.

Key Features

  • Start/stop timers for tasks
  • Manual time entry for past tasks
  • Auto-generate weekly work logs
  • Export to Excel/PDF
  • Visual chart-based analytics (optional)

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • JDBC + MySQL or local storage
  • Multithreading for time tracking
  • File I/O for export
  • Optional: JFreeChart for graphs

Learning Outcomes

  • Real-time time tracking
  • Accurate data capture & report
  • Thread management
  • Task-level productivity logging
 

Project 30: Desktop File Organizer & Cleaner

Overview: Build a utility that scans user directories and organizes files (by type, date, size), removes duplicates, and cleans up junk files. Industry Relevance: System tools, PC optimizers, productivity boosters.

Key Features

  • Scan user-selected folder
  • Automatically sort files into subfolders (e.g., Documents, Images, Videos, etc.)
  • Remove duplicate files by content (not just name)
  • Clean temp/log/cache files
  • Generate file summary (count by type, size, date)

Tech Stack

  • Java Core Concepts, JavaFX or Swing
  • Java NIO + IO for file scanning
  • Collections + Hashing for duplicate detection
  • Stream API for sorting and grouping
  • Threading for large folder scan

Learning Outcomes

  • Deep file system interaction
  • Efficient scanning and sorting
  • Hash-based duplicate detection
  • System utility software design