diff --git a/src/main/java/org/model/GasCar.java b/src/main/java/org/model/GasCar.java
deleted file mode 100644
index 58b3e45..0000000
--- a/src/main/java/org/model/GasCar.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package org.model;
-
-/*
- * GasCar extends Car.
- * Inherits Serviceable from Car.
- *
- * Service logic for GasCar:
- * - needsService(): return true if mileage > 12000
- * - performService():
- *     Print "Engine oil changed"
- *     Reset fuelLevel to 100
- */
-
-import org.behavior.Refuelable;
-
-public class GasCar extends Car implements Refuelable {
-
-    private double fuelLevel;
-    private String fuelType;
-
-    public GasCar(String brand, String model, int year,
-                  double mileage, int seats,
-                  double fuelLevel, String fuelType) {
-
-        super(brand, model, year, mileage, seats);
-        this.fuelLevel = fuelLevel;
-        this.fuelType = fuelType;
-    }
-
-    // TODO: Override getEnergyType() → return fuelType + " (Gas)"
-
-    // TODO: Implement refuel(double amount)
-    // Validate amount
-    // Cap at 100
-
-    // TODO: Override showDetails()
-}
diff --git a/src/main/java/org/Main.java b/src/org/Main.java
similarity index 74%
rename from src/main/java/org/Main.java
rename to src/org/Main.java
index 7a3d8c8..589a7df 100644
--- a/src/main/java/org/Main.java
+++ b/src/org/Main.java
@@ -1,4 +1,10 @@
 package org;
+import org.model.*;
+import org.util.VehicleInspector;
+import org.model.Vehicle;
+import org.util.VehicleInspector;
+
+import org.behavior.Serviceable;
 
 public class Main {
     public static void main(String[] args) {
@@ -84,6 +90,10 @@ public class Main {
 
 
 
+
+
+
+
         // ============================================================
         // TODO 6:
         // Loop through the Serviceable[] array:
@@ -118,9 +128,43 @@ public class Main {
         //
         // ============================================================
 
+        Serviceable tesla = new ElectricCar("Tesla", "Model 3", 2023, 5000, 5, 75, 80);
+        Serviceable honda = new GasCar("Honda", "Civic", 2022, 15000, 5, 50, "Gasoline");
+        Serviceable porsche = new SportsCar("Porsche", "911", 2023, 2000, 2, 60, "Gasoline", 3.5);
 
 
+        Vehicle[] vehicles = {(Vehicle) tesla, (Vehicle) honda, (Vehicle) porsche};
 
 
+        for (Vehicle v : vehicles) {
+            v.basicInfo();
+            System.out.println();
+        }
+
+
+        for (Vehicle v : vehicles) {
+        
+            VehicleInspector.inspect(v);
+        }
+
+
+        Serviceable[] serviceables = { tesla, honda, porsche };
+
+
+        for (Serviceable s : serviceables) {
+            Vehicle v = (Vehicle) s;
+            if (s.needsService(v)) {
+                System.out.println(v.GetBrand() + " " + v.GetBrand() + " needs service.");
+                s.performService();
+            } else {
+                System.out.println(v.GetBrand() + " " + v.GetModel() + " does not need service.");
+            }
+            System.out.println();
+        }
+
+
+        System.out.println("=== Workshop Completed ===");
     }
 }
+
+
diff --git a/src/main/java/org/behavior/Chargeable.java b/src/org/behavior/Chargeable.java
similarity index 100%
rename from src/main/java/org/behavior/Chargeable.java
rename to src/org/behavior/Chargeable.java
diff --git a/src/main/java/org/behavior/Refuelable.java b/src/org/behavior/Refuelable.java
similarity index 100%
rename from src/main/java/org/behavior/Refuelable.java
rename to src/org/behavior/Refuelable.java
diff --git a/src/main/java/org/behavior/Serviceable.java b/src/org/behavior/Serviceable.java
similarity index 100%
rename from src/main/java/org/behavior/Serviceable.java
rename to src/org/behavior/Serviceable.java
diff --git a/src/main/java/org/model/Car.java b/src/org/model/Car.java
similarity index 50%
rename from src/main/java/org/model/Car.java
rename to src/org/model/Car.java
index cb81367..b1c922d 100644
--- a/src/main/java/org/model/Car.java
+++ b/src/org/model/Car.java
@@ -11,7 +11,7 @@ package org.model;
 
 import org.behavior.Serviceable;
 
-public abstract class Car extends Vehicle implements Serviceable {
+public abstract class Car extends org.model.Vehicle implements Serviceable {
 
     private int seats;
 
@@ -19,12 +19,28 @@ public abstract class Car extends Vehicle implements Serviceable {
                double mileage, int seats) {
 
         // TODO: Call super constructor
+        super(brand , model , year , mileage );
         this.seats = seats;
     }
 
     // TODO: Override getEnergyType() → return "Unknown"
+    @Override
+    public String getEnergyType()
+    {
+        return "Unknown" ;
+    }
 
     // TODO: Override showDetails()
+    @Override
+    public void showDetails()
+    {
+        System.out.println("brand : " + GetBrand()) ;
+        System.out.println("model : " + GetModel() ) ;
+        System.out.println("year : " + GetYear() ) ;
+        System.out.println("mileage : " + GetMileage()) ;
+        System.out.println("seats : " + seats) ;
+
+    }
 
     /*
      * Implement Serviceable methods:
@@ -37,4 +53,16 @@ public abstract class Car extends Vehicle implements Serviceable {
      * performService():
      * - Print: "General car service completed"
      */
+    @Override
+    public boolean needsService(org.model.Vehicle v)
+    {
+        return this.GetMileage() > 10000 ;
+    }
+
+    public abstract boolean needService(org.model.Vehicle v);
+
+    @Override public void performService(){
+        System.out.println("General car service completed") ;
+    }
+
 }
diff --git a/src/main/java/org/model/ElectricCar.java b/src/org/model/ElectricCar.java
similarity index 51%
rename from src/main/java/org/model/ElectricCar.java
rename to src/org/model/ElectricCar.java
index ee9f5f9..e85eaa4 100644
--- a/src/main/java/org/model/ElectricCar.java
+++ b/src/org/model/ElectricCar.java
@@ -26,11 +26,49 @@ public class ElectricCar extends Car implements Chargeable {
         this.batteryCapacity = batteryCapacity;
         this.chargeLevel = chargeLevel;
     }
+    @Override
 
     // TODO: Override getEnergyType() → return "Electric"
+    public String getEnergyType()
+    {
+        return "Electric" ;
+    }
 
     // TODO: Override showDetails()
-
+    @Override
+    public void showDetails()
+    {
+        super.showDetails() ;
+        System.out.println("battry capacity  : " + batteryCapacity) ;
+        System.out.println("charge level : " + chargeLevel) ;
+    }
+    @Override
+    public void charge(double amount)
+    {
+        if (amount < 0 )
+        {
+            System.out.println("No") ;
+        }
+        else
+        {
+            chargeLevel = chargeLevel + amount ;
+            if (chargeLevel > 100)
+            {
+                chargeLevel = 100 ;
+            }
+        }
+    }
+    @Override
+    public boolean needService(org.model.Vehicle v)
+    {
+        return  (this.GetMileage()> 8000);
+    }
+    @Override
+    public void performService()
+    {
+        System.out.println("Battery system checked") ;
+        chargeLevel = 100 ;
+    }
     // TODO: Implement charge(double amount)
     // Validate negative
     // Cap at 100
diff --git a/src/org/model/GasCar.java b/src/org/model/GasCar.java
new file mode 100644
index 0000000..7d5cef0
--- /dev/null
+++ b/src/org/model/GasCar.java
@@ -0,0 +1,81 @@
+package org.model;
+
+/*
+ * GasCar extends Car.
+ * Inherits Serviceable from Car.
+ *
+ * Service logic for GasCar:
+ * - needsService(): return true if mileage > 12000
+ * - performService():
+ *     Print "Engine oil changed"
+ *     Reset fuelLevel to 100
+ */
+
+import org.behavior.Refuelable;
+
+public class GasCar extends Car implements Refuelable {
+
+    private double fuelLevel;
+    private String fuelType;
+
+    public GasCar(String brand, String model, int year,
+                  double mileage, int seats,
+                  double fuelLevel, String fuelType) {
+
+        super(brand, model, year, mileage, seats);
+        this.fuelLevel = fuelLevel;
+        this.fuelType = fuelType;
+    }
+    @Override
+    public boolean needsService(Vehicle v)
+    {
+        return this.GetMileage()> 12000 ;
+    }
+
+    @Override
+    public boolean needService(Vehicle v) {
+        return false;
+    }
+
+    @Override
+    public void performService()
+    {
+        System.out.println("Engine oil changed") ;
+        fuelLevel = 100 ;
+    }
+    @Override
+    public String getEnergyType()
+    {
+        return fuelType + " (Gas)" ;
+    }
+    @Override
+    public void refuel(double amount)
+    {
+        if (amount < 0)
+        {
+            System.out.println("no ! ") ;
+        }
+        else
+        {
+            fuelLevel = fuelLevel + amount ;
+            if (fuelLevel > 100)
+                fuelLevel = 100 ;
+        }
+    }
+    @Override
+    public void  showDetails()
+    {
+        super.showDetails() ;
+        System.out.println("fuel level : " + fuelLevel) ;
+        System.out.println("fuel type : " + fuelType) ;
+
+    }
+
+    // TODO: Override getEnergyType() → return fuelType + " (Gas)"
+
+    // TODO: Implement refuel(double amount)
+    // Validate amount
+    // Cap at 100
+
+    // TODO: Override showDetails()
+}
diff --git a/src/org/model/HybridCar.java b/src/org/model/HybridCar.java
new file mode 100644
index 0000000..1507fe3
--- /dev/null
+++ b/src/org/model/HybridCar.java
@@ -0,0 +1,88 @@
+package org.model;
+import org.behavior.Chargeable;
+import org.behavior.Refuelable;
+import org.model.Vehicle;
+
+public class HybridCar extends Car implements Chargeable  , Refuelable {
+
+    private int batteryCapacity;
+    private double chargeLevel;
+    private double fuelLevel;
+    private String fuelType;
+
+    public HybridCar(String brand, String model, int year,
+                     double mileage, int seats,
+                     double fuelLevel, String fuelType, int batteryCapacity, double chargeLevel) {
+
+        super(brand, model, year, mileage, seats);
+        this.fuelLevel = fuelLevel;
+        this.fuelType = fuelType;
+        this.batteryCapacity = batteryCapacity;
+        this.chargeLevel = chargeLevel;
+    }
+    @Override
+
+    // TODO: Override getEnergyType() → return "Electric"
+    public String getEnergyType()
+    {
+        return "Electric + fuel : " + fuelType  ;
+    }
+    @Override
+    public void showDetails()
+    {
+        super.showDetails() ;
+        System.out.println("battry capacity  : " + batteryCapacity) ;
+        System.out.println("charge level : " + chargeLevel) ;
+        System.out.println("fuel level : " + fuelLevel) ;
+        System.out.println("fuel type : " + fuelType) ;
+    }
+
+    @Override
+    public boolean needService(Vehicle v) {
+        return false;
+    }
+
+    @Override
+    public void charge(double amount)
+    {
+        if (amount < 0 )
+        {
+            System.out.println("No") ;
+        }
+        else
+        {
+            chargeLevel = chargeLevel + amount ;
+            if (chargeLevel > 100)
+            {
+                chargeLevel = 100 ;
+            }
+        }
+    }
+    @Override
+    public void refuel(double amount)
+    {
+        if (amount < 0)
+        {
+            System.out.println("no ! ") ;
+        }
+        else
+        {
+            fuelLevel = fuelLevel + amount ;
+            if (fuelLevel > 100)
+                fuelLevel = 100 ;
+        }
+    }
+    @Override
+    public boolean needsService(Vehicle v)
+    {
+        return this.GetMileage() > 10000 ;
+    }
+    @Override
+    public void performService()
+    {
+        System.out.println("Battery system checked") ;
+        chargeLevel = 100 ;
+        System.out.println("Engine oil changed") ;
+        fuelLevel = 100 ;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/org/model/SportsCar.java b/src/org/model/SportsCar.java
similarity index 59%
rename from src/main/java/org/model/SportsCar.java
rename to src/org/model/SportsCar.java
index 2f8e459..b1173ae 100644
--- a/src/main/java/org/model/SportsCar.java
+++ b/src/org/model/SportsCar.java
@@ -9,7 +9,7 @@ package org.model;
  *     Print "High-performance brake system checked"
  */
 
-public class SportsCar extends GasCar {
+public class SportsCar extends org.model.GasCar {
 
     private double zeroToHundred;
 
@@ -23,6 +23,27 @@ public class SportsCar extends GasCar {
 
         this.zeroToHundred = zeroToHundred;
     }
+    @Override
+    public boolean needsService(org.model.Vehicle v)
+    {
+        return this.GetMileage() > 5000 ;
+    }
+    @Override
+    public void performService()
+    {
+        System.out.println("High-performance brake system checked") ;
+
+    }
+    @Override
+    public void  showDetails()
+    {
+        System.out.println("*details*");
+        super.showDetails() ;
+        System.out.println("0 --> 100 " + zeroToHundred) ;
+
+
+    }
+
 
     // TODO: Override showDetails()
     // Print header
diff --git a/src/main/java/org/model/Vehicle.java b/src/org/model/Vehicle.java
similarity index 65%
rename from src/main/java/org/model/Vehicle.java
rename to src/org/model/Vehicle.java
index 70615a9..6277458 100644
--- a/src/main/java/org/model/Vehicle.java
+++ b/src/org/model/Vehicle.java
@@ -21,12 +21,39 @@ public abstract class Vehicle {
     }
 
     // TODO: Create getters for all fields
-
+    public  String GetBrand()
+    {
+        return this.brand ;
+    }
+    public String GetModel()
+    {
+        return this.model ;
+    }
+    public int GetYear()
+    {
+        return this.year ;
+    }
+    public double GetMileage()
+    {
+        return this.mileage ;
+    }
     // TODO: Implement addMileage(double km)
+    public void AddMileage(double km)
+    {
+        if (km < 0 )
+        {
+            System.out.println("error !") ;
+        }
+        else
+        {
+            this.mileage = this.mileage + km ;
+        }
+    }
     // If km is negative → print error
     // Otherwise increase mileage
 
     // TODO: Declare abstract method getEnergyType()
+    public abstract String getEnergyType();
 
     public void basicInfo() {
         System.out.println(
diff --git a/src/main/java/org/util/VehicleInspector.java b/src/org/util/VehicleInspector.java
similarity index 53%
rename from src/main/java/org/util/VehicleInspector.java
rename to src/org/util/VehicleInspector.java
index c83c420..5c8ec7e 100644
--- a/src/main/java/org/util/VehicleInspector.java
+++ b/src/org/util/VehicleInspector.java
@@ -1,6 +1,6 @@
 package org.util;
 
-import org.*;
+import org.model.*;
 import org.model.Vehicle;
 
 /*
@@ -13,6 +13,18 @@ public class VehicleInspector {
     public static void inspect(Vehicle v) {
 
         v.basicInfo();
+        if (v instanceof ElectricCar)
+        {
+            System.out.println("Check battery system") ;
+        }
+        else if (v instanceof SportsCar )
+        {
+            System.out.println("Check brakes and performance") ;
+        }
+        else if (v instanceof GasCar)
+        {
+            System.out.println("Check engine and oil") ;
+        }
 
         // TODO:
         // If ElectricCar → print "Check battery system"