diff --git a/src/main/java/org/Main.java b/src/main/java/org/Main.java index 7a3d8c8..fe405e3 100644 --- a/src/main/java/org/Main.java +++ b/src/main/java/org/Main.java @@ -1,126 +1,81 @@ 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: Create vehicle instances // ============================================================ + ElectricCar tesla = new ElectricCar( + "Tesla", "Model S", 2022, 1000, + 5, 100, 75 + ); + GasCar toyota = new GasCar( + "Toyota", "Corolla", 2018, 85000, + 5, 50, "Petrol" + ); + SportsCar ferrari = new SportsCar( + "Ferrari", "F8 Tributo", 2021, 12000, + 2, 60, "Premium", 2.9 + ); - + HybridCar prius = new HybridCar( + "Toyota", "Prius", 2023, 15000, + 5, 40, 60 + ); // ============================================================ - // 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 2: Create array of Vehicle (polymorphism) // ============================================================ - - - - + Vehicle[] vehicles = { tesla, toyota, ferrari, prius }; // ============================================================ - // 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 3: Loop through vehicles and print basic info // ============================================================ - - - - + System.out.println("=== Vehicle Basic Info ==="); + for (Vehicle v : vehicles) { + v.basicInfo(); + System.out.println(); + } // ============================================================ - // TODO 4: - // Use VehicleInspector to inspect each vehicle: - // - // VehicleInspector.inspect(v); - // - // Purpose: - // • Demonstrate the use of `instanceof` - // • Show subclass‑specific inspection messages + // TODO 4: Inspect each vehicle using VehicleInspector // ============================================================ - - - - + System.out.println("=== Vehicle Inspection ==="); + for (Vehicle v : vehicles) { + VehicleInspector.inspect(v); + System.out.println(); + } // ============================================================ - // 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 5: Create array of Serviceable // ============================================================ - - - - + Serviceable[] serviceables = { tesla, toyota, ferrari, prius }; // ============================================================ - // 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 6: Loop through serviceables and perform service // ============================================================ - - - - + System.out.println("=== Service Check ==="); + for (Serviceable s : serviceables) { + Vehicle v = (Vehicle) s; + if (s.needsService(v)) { + 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(); + } // ============================================================ - // TODO 7 (Optional): - // After everything is done, print a final message: - // - // System.out.println("=== Workshop Completed ==="); - // + // TODO 7: Final message // ============================================================ - - - - - + System.out.println("=== Workshop Completed ==="); } } diff --git a/src/main/java/org/model/Car.java b/src/main/java/org/model/Car.java index 74836b5..637b1fa 100644 --- a/src/main/java/org/model/Car.java +++ b/src/main/java/org/model/Car.java @@ -18,24 +18,29 @@ 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 int getSeats() { return seats; } - // TODO: Override showDetails() - // Print brand, model, year, mileage, and number of seats + @Override + public String getEnergyType() { return "Unknown"; } - /* - * 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 void showDetails() { + System.out.println("Brand: " + getBrand() + " | Model: " + getModel() + + " | Year: " + getYear() + " | Mileage: " + getMileage() + + " | Seats: " + seats); + } + + @Override + public boolean needsService(Vehicle v) { + return v.getMileage() > 10000; + } + + @Override + public void performService() { + System.out.println("General car service completed"); + } } diff --git a/src/main/java/org/model/ElectricCar.java b/src/main/java/org/model/ElectricCar.java index 2ee9bd8..9f2f182 100644 --- a/src/main/java/org/model/ElectricCar.java +++ b/src/main/java/org/model/ElectricCar.java @@ -27,13 +27,32 @@ 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 + @Override + public void showDetails() { + super.showDetails(); + System.out.println("Battery Capacity: " + batteryCapacity + " kWh | 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("Error: charge amount cannot be negative."); + return; + } + chargeLevel = Math.min(100, chargeLevel + amount); + } + + @Override + public boolean needsService(Vehicle v) { + return v.getMileage() > 8000; + } + + @Override + public void performService() { + System.out.println("Battery system checked"); + chargeLevel = 100; + } } diff --git a/src/main/java/org/model/GasCar.java b/src/main/java/org/model/GasCar.java index 2109f93..98c5fd6 100644 --- a/src/main/java/org/model/GasCar.java +++ b/src/main/java/org/model/GasCar.java @@ -27,13 +27,32 @@ 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) { + if (amount < 0) { + System.out.println("Error: refuel amount cannot be negative."); + return; + } + fuelLevel = Math.min(100, fuelLevel + amount); + } - // TODO: Override showDetails() - // Call super.showDetails() - // Print fuel level and fuel type + @Override + public void showDetails() { + super.showDetails(); + System.out.println("Fuel Level: " + fuelLevel + "% | 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; + } } diff --git a/src/main/java/org/model/HybridCar.java b/src/main/java/org/model/HybridCar.java new file mode 100644 index 0000000..0e3f10e --- /dev/null +++ b/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 fuelLevel; + private double chargeLevel; + + public HybridCar(String brand, String model, int year, + double mileage, int seats, + double fuelLevel, double chargeLevel) { + super(brand, model, year, mileage, seats); + this.fuelLevel = fuelLevel; + this.chargeLevel = chargeLevel; + } + + @Override + public String getEnergyType() { return "Hybrid"; } + + @Override + public void refuel(double amount) { + if (amount < 0) { + System.out.println("Error: refuel amount cannot be negative."); + return; + } + fuelLevel = Math.min(100, fuelLevel + amount); + } + + @Override + public void charge(double amount) { + if (amount < 0) { + System.out.println("Error: charge amount cannot be negative."); + return; + } + chargeLevel = Math.min(100, chargeLevel + amount); + } + + @Override + public void showDetails() { + super.showDetails(); + System.out.println("Fuel Level: " + fuelLevel + "% | Charge Level: " + chargeLevel + "%"); + } + + @Override + public boolean needsService(Vehicle v) { + return v.getMileage() > 10000; + } + + @Override + public void performService() { + System.out.println("Engine oil changed and battery system checked"); + fuelLevel = 100; + chargeLevel = 100; + } +} diff --git a/src/main/java/org/model/SportsCar.java b/src/main/java/org/model/SportsCar.java index 25f5df9..a9da9c5 100644 --- a/src/main/java/org/model/SportsCar.java +++ b/src/main/java/org/model/SportsCar.java @@ -24,7 +24,19 @@ 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("0-100 km/h: " + zeroToHundred + "s"); + } + + @Override + public boolean needsService(Vehicle v) { + return v.getMileage() > 5000; + } + + @Override + public void performService() { + System.out.println("High-performance brake system checked"); + } } diff --git a/src/main/java/org/model/Vehicle.java b/src/main/java/org/model/Vehicle.java index 70615a9..42a99da 100644 --- a/src/main/java/org/model/Vehicle.java +++ b/src/main/java/org/model/Vehicle.java @@ -20,13 +20,20 @@ public abstract class Vehicle { this.mileage = mileage; } - // TODO: Create getters for all fields + public String getBrand() { return brand; } + public String getModel() { return model; } + public int getYear() { return year; } + public double getMileage() { return mileage; } - // TODO: Implement addMileage(double km) - // If km is negative → print error - // Otherwise increase mileage + public void addMileage(double km) { + if (km < 0) { + System.out.println("Error: mileage cannot be negative."); + } else { + mileage += km; + } + } - // 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/main/java/org/util/VehicleInspector.java index c83c420..5793fb9 100644 --- a/src/main/java/org/util/VehicleInspector.java +++ b/src/main/java/org/util/VehicleInspector.java @@ -1,6 +1,8 @@ package org.util; -import org.*; +import org.model.ElectricCar; +import org.model.GasCar; +import org.model.SportsCar; import org.model.Vehicle; /* @@ -14,9 +16,12 @@ public class VehicleInspector { 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 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"); + } } }