The main Class updated to check Class HybridCar.

src/main/java/org/Main.java

@@ -1,126 +1,63 @@
 package org;
 
+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(...);
-        // ============================================================
+        //Todo 1
+        ElectricCar tesla = new ElectricCar(
+                "Tesla", "Model S", 2022, 1000,
+                100, 550, 50
+        );
 
+        GasCar toyota = new GasCar(
+                "Toyota", "Corolla", 2018, 85000,
+                5, 50, "Petrol"
+        );
 
+        SportsCar ferrari = new SportsCar(
+                "Ferrari", "F8 Tributo", 2021, 12000,
+                2, 3.9, "oil", 710
+        );
 
+        HybridCar fun = new HybridCar(
+                "Aodi", "fun", 2026, 1000,
+                5, 600, 40, 60,
+                "oil"
+        );
 
+        //TODO 2
+        Vehicle[] vehicles = {tesla, toyota, ferrari, fun};
 
-        // ============================================================
-        // 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 ===");
-        //
-        // ============================================================
-
+        //TODO 3
+        for(int i = 0; i<4; i++) {
+            vehicles[i].basicInfo();
+            System.out.println(" ");
+        }
 
+        //TODO 4
+        for(int i = 0; i<4; i++) {
+            VehicleInspector.inspect(vehicles[i]);
+        }
 
+        //TODO 5
+        Serviceable[] serviceables = {tesla, toyota, ferrari, fun};
 
+        //TODO 6
+        for(int i = 0; i<4; i++) {
+            Vehicle v = (Vehicle) serviceables[i];
+            if (serviceables[i].needsService(v)) {
+                System.out.println(((Vehicle)serviceables[i]).getBrand() + " " + ((Vehicle)serviceables[i]).getModel());
+                serviceables[i].performService();
+            }
+            else {System.out.println("The car doesn't need service!");}
+            System.out.println(" ");
+        }
 
+        //TODO 7
+        System.out.println("=== Workshop Completed ===");
     }
 }

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

@@ -17,25 +17,30 @@ 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"
+    @Override
+    abstract String getEnergyType();
 
-    // TODO: Override showDetails()
-    // Print brand, model, year, mileage, and number of seats
+    @Override
+    public void showDetails() {
+        System.out.println(getBrand());
+        System.out.println(getModel());
+        System.out.println(getYear());
+        System.out.println(getMileage());
+        System.out.println(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"
-     */
+
+    //Implements:
+    public boolean needsService(Vehicle v) {
+        double mileage = v.getMileage();
+        return (mileage > 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"
+    @Override
+    public String getEnergyType() {return "Electric";}
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print battery capacity and charge level
+    //Implement Chargeable
+    public void charge(double amount) {
+        if (amount <= 0) {
+            System.out.println("Invalid amount!");
+            return;
+        }
+        if (chargeLevel + amount > 100) {System.out.println("Invalid amount!");}
+        else {System.out.println("Refuelable!");}
+    }
 
-    // TODO: Implement charge(double amount)
-    // Validate negative
-    // Cap at 100
+    @Override
+    public void showDetails() {
+        super.showDetails();
+        System.out.println(batteryCapacity);
+        System.out.println(chargeLevel);
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        double mileage = v.getMileage();
+        return (mileage > 8000);
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("Battery system checked");
+        chargeLevel = 100;
+    }
 }

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

@@ -27,13 +27,37 @@ 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
+    //Implement Refuelable
+    public void refuel(double amount) {
+        if (amount <= 0) {
+            System.out.println("Invalid amount!");
+            return;
+        }
+        if (fuelLevel + amount > 100) {System.out.println("Invalid amount!");}
+        else {System.out.println("Refuelable!");}
+    }
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print fuel level and fuel type
+    @Override
+    public void showDetails() {
+        super.showDetails();
+        System.out.println(fuelLevel);
+        System.out.println(fuelType);
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        double mileage = v.getMileage();
+        return (mileage > 12000);
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("Engine oil changed");
+        fuelLevel = 100;
+    }
 }

src/main/java/org/model/HybridCar.java

@@ -0,0 +1,71 @@
+package org.model;
+
+import org.behavior.Chargeable;
+import org.behavior.Refuelable;
+
+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,
+                       int batteryCapacity, double chargeLevel,
+                       double fuelLevel, String fuelType)
+    {
+        super(brand, model, year, mileage, seats);
+        this.batteryCapacity = batteryCapacity;
+        this.chargeLevel = chargeLevel;
+        this.fuelLevel = fuelLevel;
+        this.fuelType = fuelType;
+    }
+
+    @Override
+    public String getEnergyType() {
+        return ("Hybrid (Gas and Electric)");
+    }
+
+    //Implement Refuelable
+    public void refuel(double amount) {
+        if (amount <= 0) {
+            System.out.println("Invalid amount!");
+            return;
+        }
+        if (fuelLevel + amount > 100) {System.out.println("Invalid amount!");}
+        else {System.out.println("Refuelable!");}
+    }
+
+    //Implement Chargeable
+    public void charge(double amount) {
+        if (amount <= 0) {
+            System.out.println("Invalid amount!");
+            return;
+        }
+        if (chargeLevel + amount > 100) {System.out.println("Invalid amount!");}
+        else {System.out.println("Refuelable!");}
+    }
+
+    @Override
+    public void showDetails() {
+        super.showDetails();
+        System.out.println(fuelLevel);
+        System.out.println(fuelType);
+        System.out.println(batteryCapacity);
+        System.out.println(chargeLevel);
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        double mileage = v.getMileage();
+        return (mileage > 10000);
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("Engine oil changed and battery system checked");
+        chargeLevel = 100;
+        fuelLevel = 100;
+    }
+}

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

@@ -24,7 +24,20 @@ public class SportsCar extends GasCar {
         this.zeroToHundred = zeroToHundred;
     }
 
-    // TODO: Override showDetails()
-    // Call super.showDetails()
-    // Print acceleration time
+    @Override
+    public void showDetails() {
+        super.showDetails();
+        System.out.println(zeroToHundred);
+    }
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        double mileage = v.getMileage();
+        return (mileage > 5000);
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("High-performance brake system checked");
+    }
 }

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

@@ -20,13 +20,32 @@ public abstract class Vehicle {
         this.mileage = mileage;
     }
 
-    // TODO: Create getters for all fields
+    public String getBrand() {
+        return brand;
+    }
 
-    // TODO: Implement addMileage(double km)
-    // If km is negative → print error
-    // Otherwise increase mileage
+    public String getModel() {
+        return model;
+    }
 
-    // TODO: Declare abstract method getEnergyType()
+    public int getYear() {
+        return year;
+    }
+
+    public double getMileage() {
+        return mileage;
+    }
+
+    public void addMileage(double km) {
+        if (km<0) {
+            System.out.println("The mileage can't be negative!");
+        }
+        else {
+            mileage += km;
+        }
+    }
+
+    abstract String getEnergyType();
 
     public void basicInfo() {
         System.out.println(

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

@@ -1,6 +1,9 @@
 package org.util;
 
-import org.*;
+import org.model.Car;
+import org.model.ElectricCar;
+import org.model.GasCar;
+import org.model.SportsCar;
 import org.model.Vehicle;
 
 /*
@@ -11,12 +14,10 @@ import org.model.Vehicle;
 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"
+        if (v instanceof SportsCar) {System.out.println("Check brakes and performance");}
+        else if (v instanceof ElectricCar) {System.out.println("Check battery system");}
+        else if (v instanceof GasCar) {System.out.println("Check engine and oil");}
     }
 }