complete code

src/main/java/org/Main.java

@@ -1,126 +1,53 @@
 package org;
 
+import org.behavior.Serviceable;
+import org.model.ElectricCar;
+import org.model.GasCar;
+import org.model.SportsCar;
+import org.model.Vehicle;
+import org.util.VehicleInspector;
+
 public class Main {
     public static void main(String[] args) {
 
-        // ============================================================
+        ElectricCar tesla = new ElectricCar(
-        // TODO 1:
+                "Tesla", "Model S", 2022, 1000,
-        // Create one instance of each vehicle type:
+                100, 550, 50   // batteryCapacity, range
-        //    - 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(...);
-        // ============================================================
-
 
+        GasCar toyota = new GasCar(
+                "Toyota", "Corolla", 2018, 85000,
+                5, 50, "Petrol"   // seats, fuelCapacity, fuelType
+        );
 
+        SportsCar ferrari = new SportsCar(
+                "Ferrari", "F8 Tributo", 2021, 12000,
+                2, 3.9, "oil", 710   // seats, engineSize, horsepower
+        );
 
 
         // ============================================================
-        // TODO 2:
+        Vehicle[] vehicles = {tesla, toyota, ferrari};
-        // Create an array of Vehicle:
+        for (Vehicle v : vehicles) {
-        //       Vehicle[] vehicles = { ... };
+            v.basicInfo();
-        //
+            System.out.println();
-        // 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 ===");
-        //
-        // ============================================================
-
-
 
+        for (Vehicle v : vehicles) {
+            VehicleInspector.inspect(v);
+            System.out.println();
+        }
+        Serviceable[] serviceList = {tesla, toyota, ferrari};
+        for (Serviceable s : serviceList) {
+            Vehicle v = (Vehicle) s;
+            if (s.needsService(v)) {
+                s.performService();
+            } else {
+                System.out.println("The car does not need service.");
+            }
 
 
         }
+        System.out.println("=== Workshop Completed ===");
+    }
 }

src/main/java/org/model/Car.java

@@ -18,13 +18,19 @@ public abstract class Car extends Vehicle implements Serviceable {
     public Car(String brand, String model, int year,
                double mileage, int seats) {
 
-        // TODO: Call super constructor
+        super(brand,model,year,mileage);
         this.seats = seats;
     }
 
-    // TODO: Override getEnergyType() → return "Unknown"
+    public String getEnergyType(){
+        return "UnKnown";
+    }
 
-    // TODO: Override showDetails()
+    public void showDetails(){
+        System.out.println("Brand: " + getBrand() + ", Model: " + getModel() +
+                ", Year: " + getYear() + ", Mileage: " + getMileage() +
+                ", Seats: " + seats);
+    }
     // Print brand, model, year, mileage, and number of seats
 
     /*
@@ -38,4 +44,13 @@ public abstract class Car extends Vehicle implements Serviceable {
      * performService():
      * - Print: "General car service completed"
      */
+    public boolean needsService(Vehicle v) {
+        return v.getMileage() > 10000;
+    }
+
+    public void performService() {
+        System.out.println("General car service completed");
+    }
+
+
 }

src/main/java/org/model/ElectricCar.java

@@ -27,13 +27,35 @@ public class ElectricCar extends Car implements Chargeable {
         this.chargeLevel = chargeLevel;
     }
 
-    // TODO: Override getEnergyType() → return "Electric"
+    public String getEnergyType() {
+        return "Electric";
+    }
 
-    // TODO: Override showDetails()
+    public void showDetails() {
-    // Call super.showDetails()
+        super.showDetails();
-    // Print battery capacity and charge level
+        System.out.println("Battery Capacity: " + batteryCapacity + " , Charge Level: " + chargeLevel + "%");
+    }
 
-    // TODO: Implement charge(double amount)
+    public void charge(double amount) {
-    // Validate negative
+        if (amount < 0) {
-    // Cap at 100
+            System.out.println("invalid amount");
+
+        } else {
+            this.chargeLevel = Math.min(100, this.chargeLevel + amount);
+
+        }
+    }
+
+    public boolean needsService() {
+
+        return getMileage() > 8000;
+    }
+
+    public void performService() {
+
+        System.out.println("Battery system checked");
+        this.chargeLevel = 100;
+        System.out.println("Charge level reset to 100%.");
+    }
+
 }

src/main/java/org/model/GasCar.java

@@ -27,13 +27,31 @@ public class GasCar extends Car implements Refuelable {
         this.fuelType = fuelType;
     }
 
-    // TODO: Override getEnergyType() → return fuelType + " (Gas)"
+    public String getEnergyType() {
+        return fuelType + " (Gas)";
+    }
 
-    // TODO: Implement refuel(double amount)
+    public void refuel(double amount) {
-    // Validate amount
+        if (amount > 0) {
-    // Cap at 100
+            this.fuelLevel = Math.min(100, this.fuelLevel + amount);
+        } else {
+            System.out.println("Invalid fuel amount.");
+        }
+    }
 
-    // TODO: Override showDetails()
+    public void showDetails() {
-    // Call super.showDetails()
+        super.showDetails();
-    // Print fuel level and fuel type
+        System.out.println("Fuel Level: " + fuelLevel + "%, Fuel Type: " + fuelType);
+    }
+
+    public boolean needsService() {
+
+        return getMileage() > 12000;
+    }
+
+    public void performService() {
+
+        System.out.println("Engine oil changed");
+        this.fuelLevel = 100;
+    }
 }

src/main/java/org/model/SportsCar.java

@@ -24,7 +24,19 @@ public class SportsCar extends GasCar {
         this.zeroToHundred = zeroToHundred;
     }
 
-    // TODO: Override showDetails()
+    public void showDetails() {
-    // Call super.showDetails()
+        super.showDetails(); // نمایش جزئیات پایه از کلاس GasCar
-    // Print acceleration time
+        System.out.println("0 to 100 km/h: " + zeroToHundred + " seconds");
+    }
+
+    public boolean needsService() {
+
+        return getMileage() > 5000;
+    }
+
+    public void performService() {
+
+        System.out.println("High-performance brake system checked");
+
+    }
 }

src/main/java/org/model/Vehicle.java

@@ -20,11 +20,33 @@ public abstract class Vehicle {
         this.mileage = mileage;
     }
 
-    // TODO: Create getters for all fields
+    public String getBrand() {
+        return brand;
+    }
 
-    // TODO: Implement addMileage(double km)
+    public String getModel(){
-    // If km is negative → print error
+        return model;
-    // Otherwise increase mileage
+    }
+
+    public int getYear(){
+        return year;
+    }
+
+    public double getMileage(){
+        return mileage;
+    }
+
+
+    public void addMileage(double km){
+        if( km < 0 ){
+            System.out.println("Error");
+        }
+        else{
+            this.mileage += km;
+        }
+    }
+
+    public abstract String getEnergyType();
 
     // TODO: Declare abstract method getEnergyType()
 
@@ -36,5 +58,7 @@ public abstract class Vehicle {
         );
     }
 
+
+
     public abstract void showDetails();
 }

src/main/java/org/util/VehicleInspector.java

@@ -1,6 +1,9 @@
 package org.util;
 
 import org.*;
+import org.model.ElectricCar;
+import org.model.GasCar;
+import org.model.SportsCar;
 import org.model.Vehicle;
 
 /*
@@ -14,9 +17,14 @@ public class VehicleInspector {
 
         v.basicInfo();
 
-        // TODO:
+        if (v instanceof ElectricCar) {
-        // If ElectricCar → print "Check battery system"
+            System.out.println("Check battery system");
-        // If SportsCar → print "Check brakes and performance"
+        }
-        // If GasCar → print "Check engine and oil"
+        else if (v instanceof SportsCar) {
+            System.out.println("Check brakes and performance");
+        }
+        else if (v instanceof GasCar) {
+            System.out.println("Check engine and oil");
+        }
     }
 }