HadiSharifi/WS-03-advanced-oop
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implement all TODO sections in Main class

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HadiSharifi
2026-04-28 20:10:53 +03:30
parent 4cff34b20a
commit e3d94d0b19
1 changed files with 39 additions and 113 deletions
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src/main/java/org/Main.java
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@@ -1,125 +1,51 @@
package org;
import org.model.HybridCar;
import org.behavior.Serviceable;
import org.model.*;
import org.util.VehicleInspector;
public class Main {
public static void main(String[] args) {
// ============================================================
// 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(...);
// ============================================================
ElectricCar tesla = new ElectricCar("Tesla","3",2020,7000,5,100,60);
GasCar pride = new GasCar("Saipa","132",2002,200000,5,50,"Gasoline");
HybridCar prius = new HybridCar("Toyota","Prius",2025,3000,5,70,90);
SportsCar ferrari = new SportsCar("Ferrari","488 GTB",2015,80000,2,20,"Gasoline",2.9);
Vehicle[] vehicles = {tesla,pride,prius,ferrari};
System.out.println("=".repeat(20) + " Show Vehicles " + "=".repeat(20));
for (Vehicle vehicle : vehicles) {
vehicle.basicInfo();
System.out.println();
}
System.out.println("=".repeat(20) + " Inspect Vehicles " + "=".repeat(20));
for (Vehicle vehicle : vehicles) {
VehicleInspector.inspect(vehicle);
System.out.println();
}
Serviceable[] serviceables = {prius,ferrari,tesla,pride};
System.out.println("=".repeat(20) + " Check Services " + "=".repeat(20));
for (Serviceable serviceable : serviceables) {
Vehicle v = (Vehicle) serviceable;
if (serviceable.needsService(v)) {
System.out.println("brand: " + v.getBrand() + " | model: " + v.getModel());
serviceable.performService();
System.out.println();
}
else {
System.out.println("brand: " + v.getBrand() + " | model: " + v.getModel() + " doesn't needs service");
System.out.println();
}
}
// ============================================================
// 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 subclass‑specific inspection messages
// ============================================================
// ============================================================
// TODO 5:
// Create an array of Serviceable:
// Serviceable[] serviceables = { ... };
//
// This demonstrates **interface‑based 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 ===");
//
// ============================================================
System.out.println("=".repeat(20) + " Workshop Completed " + "=".repeat(20));