Rental Management System in Java with Source Code

Rental Management System in Java

Introduction

Managing a rental business, whether it’s cars, bikes, or other assets, can be a complex process involving a lot of manual tracking and organization. The Rental Management System in Java offers a streamlined solution by enabling businesses to manage rentals with ease, providing essential features to facilitate booking, tracking, and invoicing.

Key Features

• Secure Login System: Upon launch, users must log in with valid credentials, ensuring system security and limited access to authorized users.
• Vehicle Selection: After logging in, users can browse through available cars and bikes, filtering by model and type.
• Flexible Rental Duration: Users can specify rental start and end dates, allowing for a customized rental period.
• Invoice Generation: The system automatically generates an invoice based on the selected vehicle and rental duration, making billing straightforward and accurate.

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Project Requirements

To run this project, you will need:

• Java JDK: This project is built in Java, requiring the latest version of Java Development Kit.
• Eclipse IDE: The entire project was developed in Eclipse, making it the recommended platform for running and modifying the code.

This project serves as an invaluable learning tool for students and novice Java programmers, offering hands-on experience with core concepts such as user authentication, GUI design, and simple database handling (if extended). For small rental businesses, it provides a practical and easy-to-implement solution for managing daily rental operations.

Getting Started

1. Download and Install Java JDK and Eclipse IDE: Ensure you have the necessary environment setup for Java.
2. Import the Project into Eclipse: Download the source code, import it into Eclipse, and run the program.
3. Login and Explore: Use the login feature to access the system, select a vehicle, specify your rental dates, and generate an invoice.

Project Structure

1. Main Class: Initializes the program and handles user login.
2. RentalSystem Class: Manages vehicle selection, rental period, and invoice generation.
3. Vehicle Class: Represents vehicles (cars, bikes) with attributes like model, price per day, and type.

Sample Source Code

Here is a basic structure:

1. Main Class (RentalManagementSystem.java)

import java.util.Scanner;

public class RentalManagementSystem {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // Simple Login
        System.out.println("Welcome to the Rental Management System");
        System.out.print("Enter username: ");
        String username = scanner.nextLine();

        System.out.print("Enter password: ");
        String password = scanner.nextLine();

        // For simplicity, assuming a fixed username/password
        if (username.equals("admin") && password.equals("password123")) {
            System.out.println("Login successful!\n");
            RentalSystem rentalSystem = new RentalSystem();
            rentalSystem.showMenu(scanner);
        } else {
            System.out.println("Invalid login. Access denied.");
        }

        scanner.close();
    }
}

2. Rental System Class (RentalSystem.java)

import java.util.ArrayList;
import java.util.Scanner;

public class RentalSystem {
    private ArrayList<Vehicle> vehicles;

    public RentalSystem() {
        vehicles = new ArrayList<>();
        vehicles.add(new Vehicle("Car", "Toyota Corolla", 50));
        vehicles.add(new Vehicle("Car", "Honda Civic", 55));
        vehicles.add(new Vehicle("Bike", "Yamaha", 20));
        vehicles.add(new Vehicle("Bike", "Ducati", 30));
    }

    public void showMenu(Scanner scanner) {
        System.out.println("Available Vehicles:");
        for (int i = 0; i < vehicles.size(); i++) {
            System.out.println((i + 1) + ". " + vehicles.get(i));
        }

        System.out.print("Select a vehicle by number: ");
        int choice = scanner.nextInt();
        Vehicle selectedVehicle = vehicles.get(choice - 1);

        System.out.print("Enter rental start date (YYYY-MM-DD): ");
        String startDate = scanner.next();

        System.out.print("Enter rental end date (YYYY-MM-DD): ");
        String endDate = scanner.next();

        generateInvoice(selectedVehicle, startDate, endDate);
    }

    public void generateInvoice(Vehicle vehicle, String startDate, String endDate) {
        int rentalDays = 5; // Simplified; calculate days between startDate and endDate
        double totalCost = rentalDays * vehicle.getPricePerDay();

        System.out.println("\n--- Invoice ---");
        System.out.println("Vehicle: " + vehicle.getModel());
        System.out.println("Rental Days: " + rentalDays);
        System.out.println("Total Cost: $" + totalCost);
        System.out.println("Thank you for choosing our service!");
    }
}

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3. Vehicle Class (Vehicle.java)

public class Vehicle {
    private String type;
    private String model;
    private double pricePerDay;

    public Vehicle(String type, String model, double pricePerDay) {
        this.type = type;
        this.model = model;
        this.pricePerDay = pricePerDay;
    }

    public String getType() {
        return type;
    }

    public String getModel() {
        return model;
    }

    public double getPricePerDay() {
        return pricePerDay;
    }

    @Override
    public String toString() {
        return type + " - " + model + " ($" + pricePerDay + " per day)";
    }
}

How to Run the Project

1. Set up your environment: Install Java JDK and Eclipse IDE.
2. Create the project in Eclipse: Create a new Java Project in Eclipse and add each class in separate .java files.
3. Compile and Run: Run the RentalManagementSystem.java file to start the program.

Features to Expand

1. Calculate Rental Days: Use Java’s LocalDate to calculate rental days based on user-provided dates.
2. Database Integration: Add a database to store vehicle details and user data.
3. Additional Vehicle Options: Expand the vehicles list to add more vehicle types and models.

This basic project can be a great foundation for learning Java concepts and exploring how to build a functional rental management system!

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