src/main/java/org/Main.java

@@ -1,5 +1,7 @@
 package org;
 
+import org.model.HybridCar;
+
 public class Main {
     public static void main(String[] args) {
 
@@ -20,7 +22,6 @@ public class Main {
 
 
 
-
         // ============================================================
         // TODO 2:
         // Create an array of Vehicle:

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

@@ -1,13 +1,5 @@
 package org.model;
 
-/*
- * Car extends Vehicle.
- * This class SHOULD implement Serviceable.
- *
- * Service logic for Car:
- * - needsService(): return true if mileage > 10,000
- * - performService(): print "General car service completed"
- */
 
 import org.behavior.Serviceable;
 

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

@@ -0,0 +1,57 @@
+package org.model;
+
+import org.behavior.Chargeable;
+import org.behavior.Refuelable;
+
+public class HybridCar extends Car implements Refuelable, Chargeable {
+    private double batteryLevel;
+    private double fuelLevel;
+
+    public HybridCar(String brand, String model, int year,
+                     double mileage, int seats, double batteryLevel, double fuelLevel) {
+        super(brand, model, year, mileage, seats);
+        this.batteryLevel = batteryLevel;
+        this.fuelLevel = fuelLevel;
+    }
+
+    @Override
+    public String getEnergyType() {
+        return "Hybrid";
+    }
+
+    @Override
+    public void showDetails() {
+        super.showDetails();
+        System.out.println(
+                "Battery Level: " + this.batteryLevel + "\n"
+                + "Fuel Level: " + this.fuelLevel
+        );
+    }
+
+    @Override
+    public void charge(double amount) {
+        if (amount < 0) {
+            throw new IllegalArgumentException("Amount must be positive");
+        }
+        if (this.batteryLevel + amount > 100) {this.batteryLevel = 100;}
+        this.batteryLevel += amount;
+    }
+
+    @Override
+    public void refuel(double amount) {
+        if (amount < 0) {
+            throw new IllegalArgumentException("Amount must be positive");
+        }
+        if (this.fuelLevel + amount > 100) {this.fuelLevel = 100;}
+        this.fuelLevel += amount;
+    }
+
+
+    @Override
+    public void performService() {
+        System.out.println("Engine oil changed and batter system checked");
+        this.batteryLevel = 100;
+        this.fuelLevel = 100;
+    }
+
+}

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

@@ -3,6 +3,7 @@ package org.util;
 import org.*;
 import org.model.ElectricCar;
 import org.model.GasCar;
+import org.model.HybridCar;
 import org.model.SportsCar;
 import org.model.Vehicle;
 
@@ -23,5 +24,8 @@ public class VehicleInspector {
         else if (v instanceof GasCar) {
             System.out.println("Check engine and oil");
         }
+        else if (v instanceof HybridCar) {
+            System.out.println("Check engine and oil and battery service");
+        }
     }
 }