feat: demonstrate polymorphism in Main

src/main/java/org/example/Main.java

@@ -1,7 +1,130 @@
 package org.example;
 
-//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
-// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+import org.example.model.*;
+import org.example.util.VehicleInspector;
+import org.example.behavior.Serviceable;
+
 public class Main {
-    public static void main(String[] args) {}
-}
+    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(...);
+        // ============================================================
+
+
+
+
+
+        // ============================================================
+        // 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 ===");
+        //
+        // ============================================================
+
+
+
+
+
+    }
+}