complete all workshop TODOs

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2026-06-13 17:13:12 +03:30
parent 6cb8f9a8d8
commit b74e094766
7 changed files with 182 additions and 220 deletions
+38 -116
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@@ -1,126 +1,48 @@
package org;
import org.model.*;
import org.behavior.Serviceable;
import org.util.*;
public class Main {
public class Main{
public static void main(String[] args) {
// Creating instances for each car type with realistic values
ElectricCar tesla =new ElectricCar("Tesla", "Model S", 2022, 9000, 5, 100, 45);
GasCar toyota= new GasCar("Toyota", "Corolla", 2018, 15000, 5, 60, "Petrol");
SportsCar ferrari =new SportsCar("Ferrari", "F8 Tributo", 2021, 6000, 2, 40, "Petrol", 2.9);
//Demonstrating polymorphism by storing different subclasses in a Vehicle array
Vehicle[] vehicles = { tesla, toyota, ferrari };
// ============================================================
// TODO 1:
// Create one instance of each vehicle type:
// - ElectricCar
// - GasCar
// - SportsCar
//
// Requirements:
// • Use the constructors you created in each class.
// • Provide realistic values (brand, model, year, mileage, etc.).
// • Store them in variables such as:
// ElectricCar tesla = new ElectricCar(...);
// ============================================================
// ============================================================
// TODO 2:
// Create an array of Vehicle:
// Vehicle[] vehicles = { ... };
//
// This array MUST contain the objects created above.
// This demonstrates **polymorphism** because all different
// subclasses (ElectricCar, GasCar, SportsCar) are stored
// as their parent type (Vehicle).
// ============================================================
// ============================================================
// TODO 3:
// Loop through the Vehicle[] array and:
// • Call v.basicInfo();
// • Print a blank line after each.
//
// Purpose:
// Demonstrate that all subclasses share the same Vehicle
// behavior and can call inherited methods.
// ============================================================
// ============================================================
// TODO 4:
// Use VehicleInspector to inspect each vehicle:
//
// VehicleInspector.inspect(v);
//
// Purpose:
// • Demonstrate the use of `instanceof`
// • Show subclassspecific inspection messages
// ============================================================
// ============================================================
// TODO 5:
// Create an array of Serviceable:
// Serviceable[] serviceables = { ... };
//
// This demonstrates **interfacebased polymorphism**.
// Every Car subtype implements Serviceable.
//
// IMPORTANT:
// • You must cast to Vehicle when needed:
// Vehicle v = (Vehicle) s;
//
// ============================================================
// ============================================================
// TODO 6:
// Loop through the Serviceable[] array:
//
// Steps inside loop:
//
// 1. Cast the current object to Vehicle:
// Vehicle v = (Vehicle) s;
//
// 2. Check:
// if (s.needsService(v)) { ... }
//
// 3. If true:
// - Print a message showing brand + model
// - Call s.performService();
//
// 4. Otherwise:
// - Print that the car does not need service
//
// Add blank lines between each item for readability.
// ============================================================
// ============================================================
// TODO 7 (Optional):
// After everything is done, print a final message:
//
// System.out.println("=== Workshop Completed ===");
//
// ============================================================
// Looping through vehicles to display basic inherited info
System.out.println("--- Basic Vehicle Info ---");
for (Vehicle v : vehicles) {
v.basicInfo();
System.out.println();
}
//Using the inspector utility to perform type-checking with instanceof
System.out.println("--- Vehicle Inspection ---");
for (Vehicle v : vehicles) {
VehicleInspector.inspect(v);
System.out.println();
}
// Demonstrating interface-based polymorphism by storing cars in a Serviceable array
Serviceable[] serviceables = { tesla, toyota, ferrari };
//Iterating through serviceables, casting to Vehicle to check mileage limits, and performing services
System.out.println("--- Service Management System ---");
for (Serviceable s : serviceables) {
Vehicle v = (Vehicle) s;
if (s.needsService(v)) {
System.out.println(v.getBrand() + " " + v.getModel() + " needs service.");
s.performService();
} else {
System.out.println(v.getBrand() + " " + v.getModel() + " is in good condition. No service needed.");
}
System.out.println();
}
//Final workshop completion message
System.out.println("=== Workshop Completed ===");
}
}