146 lines
4.9 KiB
Java
146 lines
4.9 KiB
Java
package org;
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import org.behavior.Serviceable;
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import org.model.ElectricCar;
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import org.model.GasCar;
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import org.model.SportsCar;
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import org.model.Vehicle;
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import org.util.VehicleInspector;
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public class Main {
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public static void main(String[] args) {
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// ============================================================
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// TODO 1:
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// Create one instance of each vehicle type:
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// - ElectricCar
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// - GasCar
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// - SportsCar
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//
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// Requirements:
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// • Use the constructors you created in each class.
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// • Provide realistic values (brand, model, year, mileage, etc.).
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// • Store them in variables such as:
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// ElectricCar tesla = new ElectricCar(...);
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// ============================================================
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ElectricCar nissan = new ElectricCar("Nissan", "Leaf", 2022, 850, 5, 62, 88.5);
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GasCar ford = new GasCar("Ford", "Mustang", 2023, 12000, 4, 55.0, "Petrol");
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SportsCar porsche = new SportsCar("Porsche", "911 Turbo S", 2023, 5000, 2, 55.0, "Petrol", 2.6);
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// ============================================================
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// TODO 2:
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// Create an array of Vehicle:
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// Vehicle[] vehicles = { ... };
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//
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// This array MUST contain the objects created above.
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// This demonstrates **polymorphism** because all different
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// subclasses (ElectricCar, GasCar, SportsCar) are stored
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// as their parent type (Vehicle).
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// ============================================================
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Vehicle[] vehicles = {nissan, ford, porsche};
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// ============================================================
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// TODO 3:
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// Loop through the Vehicle[] array and:
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// • Call v.basicInfo();
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// • Print a blank line after each.
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//
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// Purpose:
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// Demonstrate that all subclasses share the same Vehicle
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// behavior and can call inherited methods.
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// ============================================================
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for(Vehicle v: vehicles){
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v.basicInfo();
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System.out.println();
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}
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// ============================================================
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// TODO 4:
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// Use VehicleInspector to inspect each vehicle:
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//
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// VehicleInspector.inspect(v);
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//
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// Purpose:
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// • Demonstrate the use of `instanceof`
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// • Show subclass‑specific inspection messages
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// ============================================================
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for (Vehicle v : vehicles) {
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VehicleInspector.inspect(v);
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}
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// ============================================================
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// TODO 5:
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// Create an array of Serviceable:
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// Serviceable[] serviceables = { ... };
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//
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// This demonstrates **interface‑based polymorphism**.
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// Every Car subtype implements Serviceable.
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//
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// IMPORTANT:
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// • You must cast to Vehicle when needed:
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// Vehicle v = (Vehicle) s;
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//
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// ============================================================
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Serviceable[] serviceables = {nissan, ford, porsche};
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// ============================================================
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// TODO 6:
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// Loop through the Serviceable[] array:
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//
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// Steps inside loop:
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//
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// 1. Cast the current object to Vehicle:
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// Vehicle v = (Vehicle) s;
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//
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// 2. Check:
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// if (s.needsService(v)) { ... }
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//
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// 3. If true:
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// - Print a message showing brand + model
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// - Call s.performService();
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//
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// 4. Otherwise:
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// - Print that the car does not need service
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//
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// Add blank lines between each item for readability.
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// ============================================================
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for (Serviceable s : serviceables) {
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Vehicle v = (Vehicle) s;
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if (s.needsService(v)) {
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System.out.println(v.getBrand() + " " + v.getModel() + " needs service.");
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s.performService();
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System.out.println();
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} else {
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System.out.println(v.getBrand() + " " + v.getModel() + " does not need service.");
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}
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System.out.println();
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}
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// ============================================================
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// TODO 7 (Optional):
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// After everything is done, print a final message:
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//
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// System.out.println("=== Workshop Completed ===");
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//
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// ============================================================
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System.out.println("=== Workshop Completed ===");
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}
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}
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