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.
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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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