.idea/.name

@@ -0,0 +1 @@
+Vehicle.java

.idea/misc.xml

@@ -8,7 +8,7 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_25" default="true" project-jdk-name="25" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

src/main/java/org/Main.java

@@ -1,5 +1,7 @@
 package org;
-
+import org.behavior.Serviceable;
+import org.model.*;
+import org.util.VehicleInspector;
 public class Main {
     public static void main(String[] args) {
 
@@ -16,7 +18,36 @@ public class Main {
         //   • Store them in variables such as:
         //          ElectricCar tesla = new ElectricCar(...);
         // ============================================================
+        ElectricCar tesla = new ElectricCar(
+                "Tesla",
+                "Model Y",
+                2026,
+                5000,
+                7,
+                81,
+                65
+        );
 
+        GasCar pride = new GasCar(
+                "saipa",
+                "pride",
+                2020,
+                123000,
+                4,
+                35,
+                "Petrol"
+        );
+
+        SportsCar mclaren = new SportsCar(
+                "McLaren",
+                "720S",
+                2026,
+                3600,
+                2,
+                72,
+                "Premium Petrol",
+                2.9
+        );
 
 
 
@@ -31,7 +62,11 @@ public class Main {
         // subclasses (ElectricCar, GasCar, SportsCar) are stored
         // as their parent type (Vehicle).
         // ============================================================
-
+        Vehicle[] vehicles = {
+                tesla,
+                pride,
+                mclaren
+        };
 
 
 
@@ -46,9 +81,12 @@ public class Main {
         //   Demonstrate that all subclasses share the same Vehicle
         //   behavior and can call inherited methods.
         // ============================================================
+        System.out.println("=== Vehicle Information ===");
 
-
-
+        for (Vehicle v : vehicles) {
+            v.basicInfo();
+            System.out.println();
+        }
 
 
         // ============================================================
@@ -62,6 +100,13 @@ public class Main {
         //   • Show subclass‑specific inspection messages
         // ============================================================
 
+        System.out.println("=== Vehicle Inspection ===");
+
+        for (Vehicle v : vehicles) {
+            VehicleInspector.inspect(v);
+            System.out.println();
+        }
+
 
 
 
@@ -79,7 +124,11 @@ public class Main {
         //           Vehicle v = (Vehicle) s;
         //
         // ============================================================
-
+        Serviceable[] serviceables = {
+                tesla,
+                pride,
+                mclaren
+        };
 
 
 
@@ -106,21 +155,38 @@ public class Main {
         // Add blank lines between each item for readability.
         // ============================================================
 
+        System.out.println("=== Service Check ===");
 
+        for (Serviceable s : serviceables) {
 
+            Vehicle v = (Vehicle) s;
 
+            if (s.needsService(v)) {
 
-        // ============================================================
-        // TODO 7 (Optional):
-        // After everything is done, print a final message:
-        //
-        //   System.out.println("=== Workshop Completed ===");
-        //
-        // ============================================================
-
+                System.out.println(
+                        v.getBrand() + " " + v.getModel()
+                                + " needs service."
+                );
 
+                s.performService();
+            }
+            else {
 
+                System.out.println(
+                        v.getBrand() + " " + v.getModel()
+                                + " does not need service."
+                );
+            }
 
+            System.out.println();
+        }
 
+        System.out.println("=== Workshop Completed ===");
     }
 }
+
+
+
+
+
+

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

@@ -18,24 +18,34 @@ 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;
     }
+    public int getSeats() {
+        return seats;
+    }
 
-    // TODO: Override getEnergyType() → return "Unknown"
+    // Here in getEnergyType we return null but later we override it accordingly to each type of car
+    @Override
+    public String getEnergyType() {
+        return "Unknown";
+    }
 
-    // TODO: Override showDetails()
-    // Print brand, model, year, mileage, and number of seats
+    @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:
-     *
-     * needsService(Vehicle v):
-     * - Check the mileage of the current car
-     * - If mileage > 10000 return true
-     * - Otherwise return false
-     *
-     * performService():
-     * - Print: "General car service completed"
-     */
+    @Override
+    public boolean needsService(Vehicle v) {
+        return v.getMileage() > 10000;
+    }
+    @Override
+    public void performService() {
+        System.out.println("General car service completed");
+    }
 }

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

@@ -21,19 +21,48 @@ public class ElectricCar extends Car implements Chargeable {
     public ElectricCar(String brand, String model, int year,
                        double mileage, int seats,
                        int batteryCapacity, double chargeLevel) {
-
+        // becuase we inherit fields from car, we use super keyword
         super(brand, model, year, mileage, seats);
         this.batteryCapacity = batteryCapacity;
         this.chargeLevel = chargeLevel;
     }
 
-    // TODO: Override getEnergyType() → return "Electric"
+    @Override
+    public String getEnergyType() {
+        return "Electric";
+    }
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print battery capacity and charge level
+    @Override
+    public void showDetails() {
+        // we inherit showDetails from Car again so we use super
+        super.showDetails();
+        System.out.println("Battery Capacity: " + batteryCapacity);
+        System.out.println("Charge Level: " + chargeLevel);
+    }
 
-    // TODO: Implement charge(double amount)
-    // Validate negative
-    // Cap at 100
+    @Override
+    public void charge(double amount) {
+
+        if (amount < 0) {
+            System.out.println("Invalid charge amount");
+            return;
+        }
+
+        chargeLevel += amount;
+
+        if (chargeLevel > 100) {
+            chargeLevel = 100;
+        }
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        return v.getMileage() > 8000;
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("Battery system checked");
+        chargeLevel = 100;
+    }
 }

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

@@ -27,13 +27,41 @@ public class GasCar extends Car implements Refuelable {
         this.fuelType = fuelType;
     }
 
-    // TODO: Override getEnergyType() → return fuelType + " (Gas)"
+    @Override
+    public String getEnergyType() {
+        return fuelType + " (Gas)";
+    }
 
-    // TODO: Implement refuel(double amount)
-    // Validate amount
-    // Cap at 100
+    @Override
+    public void refuel(double amount) {
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print fuel level and fuel type
+        if (amount < 0) {
+            System.out.println("Invalid fuel amount");
+            return;
+        }
+
+        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);
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        return v.getMileage() > 12000;
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("Engine oil changed");
+        fuelLevel = 100;
+    }
 }

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

@@ -23,8 +23,18 @@ public class SportsCar extends GasCar {
 
         this.zeroToHundred = zeroToHundred;
     }
+    @Override
+    public void showDetails(){
+        super.showDetails();
+        System.out.println("Acceleration Time: " + zeroToHundred + " sec");
+    }
+    @Override
+    public boolean needsService(Vehicle v) {
+        return v.getMileage() > 5000;
+    }
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print acceleration time
+    @Override
+    public void performService() {
+        System.out.println("High-performance brake system checked");
+    }
 }

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

@@ -19,15 +19,33 @@ public abstract class Vehicle {
         this.year = year;
         this.mileage = mileage;
     }
+// Here is all getter method of the fields
+    public String getBrand() {
+        return brand;
+    }
 
-    // TODO: Create getters for all fields
+    public String getModel() {
+        return model;
+    }
 
-    // TODO: Implement addMileage(double km)
-    // If km is negative → print error
-    // Otherwise increase mileage
+    public int getYear() {
+        return year;
+    }
 
-    // TODO: Declare abstract method getEnergyType()
+    public double getMileage() {
+        return mileage;
+    }
 
+    public void addMileage(double km) {
+        if (km < 0) {
+            System.out.println("Mileage cannot be negative");
+            return;
+        }
+        mileage += km;
+    }
+
+    public abstract String getEnergyType();
+// basicInfo returns the info about vehicle such as brand and energy
     public void basicInfo() {
         System.out.println(
                 year + " " + brand + " " + model +

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

@@ -1,7 +1,7 @@
 package org.util;
 
 import org.*;
-import org.model.Vehicle;
+import org.model.*;
 
 /*
  * Utility class to inspect vehicles.
@@ -13,10 +13,15 @@ public class VehicleInspector {
     public static void inspect(Vehicle v) {
 
         v.basicInfo();
-
-        // TODO:
-        // If ElectricCar → print "Check battery system"
-        // If SportsCar → print "Check brakes and performance"
-        // If GasCar → print "Check engine and oil"
+// Here we are using instanceof to check vehicle's kind
+        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");
+        }
     }
 }