These projects are for learners who know:

• Java basics
• Java Collections Framework (List, Map, Set, Queue)

The project themes are aligned with common Java development usage:

• backend/business modules
• batch processing
• operations/reporting systems

Each project is scoped to 3 to 10 hours and includes:

• functional + non-functional requirements
• passing criteria
• concepts practiced
• HLD and LLD
• implementation roadmap

1. 01_banking_transaction_ledger.md - 4 to 6 hours
2. 02_atm_service_simulator.md - 4 to 6 hours
3. 03_order_management_backend_module.md - 5 to 7 hours
4. 04_employee_payroll_batch_processor.md - 5 to 7 hours
5. 05_helpdesk_ticket_sla_tracker.md - 4 to 6 hours
6. 06_inventory_purchase_order_engine.md - 5 to 7 hours
7. 07_api_access_log_audit_tool.md - 4 to 6 hours
8. 08_customer_onboarding_csv_batch_job.md - 5 to 8 hours
9. 09_hotel_booking_backend_simulator.md - 5 to 7 hours
10. 10_notification_queue_dispatcher.md - 4 to 6 hours