Design a Car Rental System
State PatternStrategy PatternFactory Pattern
Design a Car Rental System that manages a fleet of vehicles (cars, SUVs, trucks) with different states (Available, Rented, Maintenance, Retired). The system should support vehicle booking for specific date ranges, calculate rental costs based on vehicle type, duration, and location, check availability, handle pickup/dropoff at different locations, track vehicle damage, manage insurance options, and implement a loyalty program for customers.
What You'll Build
- The system should manage a fleet of vehicles including cars, SUVs, and trucks, each with unique identifiers, make, model, and year.
- Vehicles should have states (Available, Rented, Maintenance, Retired) and transition between states based on operations.
- Customers should be able to search for available vehicles by type, location, and date range.
- The system should allow customers to book vehicles for specific start and end dates, with automatic state transitions.
- Rental pricing should be calculated based on vehicle type, rental duration, pickup/dropoff locations, and any applicable discounts.
- ...and more
🎯
Step-by-Step Guidance
Follow our systematic 8-step approach to design the system from scratch. Learn how to identify actors, assign responsibilities, and create class diagrams.
📊
Interactive UML Builder
Build class diagrams visually with our drag-and-drop UML editor. Connect classes, define relationships, and see your design come to life.
💻
Multi-Language Support
Practice in Python, Java, C++, TypeScript, JavaScript, or C#. Get complete solutions and explanations in all supported languages.
🤖
AI-Powered Review
Get instant feedback on your design and code. Our AI reviews your implementation and suggests improvements based on best practices.
📚
Design Patterns
Learn how to apply design patterns like State Pattern, Strategy Pattern and more. Understand when and why to use each pattern.
✅
Complete Solutions
Access detailed solutions with explanations, UML diagrams, and code implementations. Learn from industry best practices.
🐍 Python ☕ Java 📘 TypeScript 🟨 JavaScript ⚡ C++ 🟣 C#
Ready to Master This Problem?
Join thousands of developers practicing Low Level Design. Build your design step-by-step, get AI feedback, and learn from complete solutions.
🚀 Start Practicing Now