Java Vehicle Inheritance Challenge

Introduction

Welcome to JavaMotors, the most innovative virtual car manufacturer in the programming world! As a newly hired junior developer, your first task is to help implement a crucial feature for the company's vehicle management system.

The lead developer has already set up the basic structure of the vehicle classes, but they need your help to complete the inheritance hierarchy. Your mission is to create a Car class that inherits from the Vehicle class and adds a specific method for cars.

Are you ready to take on this challenge and help JavaMotors revolutionize their vehicle management system? Let's start coding!

Skills Graph

Complete the Car Class Implementation

This exercise will take you on a journey through the world of object-oriented programming and inheritance in Java. By extending the Vehicle class to create a Car class, you'll gain hands-on experience with one of the fundamental concepts in OOP. This challenge will help you understand how to create specialized classes that build upon more general ones, a skill that's crucial in designing large-scale, maintainable software systems. Let's rev up our engines and dive into the world of virtual vehicles!

Tasks

• Open the pre-created file Car.java in the ~/project directory.
• Find the TODO comment in the code.
• Implement the honk method in the Car class.

Requirements

• The file Car.java should already exist in the ~/project directory.
• The Car class should extend the Vehicle class.
• Complete the honk method:
  • It should print a message saying "[car name] goes beep beep!", where [car name] is the name of the car.
• Do not modify any other parts of the code.

Example

When completed correctly, running the main method in VehicleDemo.java should produce output similar to this:

cd ~/project
javac VehicleDemo.java
java VehicleDemo

Sample Output:

Vehicle details:
Name: Generic Vehicle
Speed: 0

Car details:
Name: My Car
Speed: 0
My Car goes beep beep!

Summary

In this challenge, you've implemented a key feature of a vehicle management system using inheritance in Java. This exercise reinforced key concepts from your Java Inheritance and Polymorphism lab:

1. Inheritance: You worked with a Car class that extends the Vehicle class, demonstrating how inheritance allows us to create specialized classes based on more general ones.
2. Method Implementation: You added a specific method (honk) to the Car class, showing how subclasses can have additional functionality beyond what's inherited from their superclass.
3. Using Inherited Methods: The honk method used the getName() method, which is likely inherited from the Vehicle class, demonstrating how subclasses can use methods from their superclass.

By completing this challenge, you've not only practiced these fundamental Java skills but also created a practical feature that's common in many real-world object-oriented systems. Vehicle hierarchies are a classic example used to teach inheritance, and you've just implemented a small part of such a system!

Remember, inheritance is a powerful tool in object-oriented programming that allows us to create hierarchies of classes, promoting code reuse and logical organization of code. As you continue your journey at JavaMotors, you might enhance this system by:

• Adding more types of vehicles (like Motorcycle or Truck)
• Implementing more specific methods for each vehicle type
• Overriding methods from the Vehicle class to provide more specific behavior for each subclass

Keep practicing and experimenting with your code. The more you work with inheritance and other object-oriented principles, the more comfortable you'll become with structuring your Java programs. Welcome to the world of virtual vehicle manufacturing at JavaMotors!