allows us to treat a List containing both gas and electric vehicles uniformly, calling a .refuel() method that behaves differently depending on the specific object type. 5. Conclusion
The state of a car is defined by its fields. To follow Java best practices, we use by marking these fields private and providing public getter and setter methods. This protects the data from unauthorized interference. car-class-java
: A double representing the current gas or charge. IsRunning : A boolean flag to track the engine state. 3. Implementation Example Below is a standard implementation of a robust Car class. allows us to treat a List containing both
public class Car { // Attributes private String make; private String model; private int year; private double fuelLevel; private boolean isRunning; // Constructor public Car(String make, String model, int year) { this.make = make; this.model = model; this.year = year; this.fuelLevel = 100.0; // Starts with a full tank this.isRunning = false; } // Behavioral Methods public void startEngine() { if (fuelLevel > 0) { isRunning = true; System.out.println("The " + model + " engine roars to life."); } else { System.out.println("Out of fuel. Cannot start."); } } public void drive(double distance) { if (isRunning) { fuelLevel -= (distance * 0.05); // Simple fuel consumption logic System.out.println("Driving... Remaining fuel: " + fuelLevel + "%"); } else { System.out.println("Start the engine first!"); } } // Getters and Setters public String getModel() { return model; } public void setModel(String model) { this.model = model; } } Use code with caution. Copied to clipboard 4. Advanced Concepts: Inheritance and Polymorphism To follow Java best practices, we use by
In Java, a class acts as a blueprint. A Car class encapsulates the data (state) and methods (behavior) that define what a car is and what it can do within a software system. This structure allows developers to create multiple "instances" (individual cars) with unique properties while sharing the same underlying logic. 2. Core Attributes and Encapsulation
This paper explores the implementation and design philosophy of a Car class in Java, a fundamental exercise in Object-Oriented Programming (OOP). We will cover the core components: encapsulation of attributes, constructor logic, and behavioral methods. 1. Introduction to the Car Class