Arshida_0/WS-03-advanced-oop-Arshida
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Implement WS-03

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Arshida_0
2026-04-27 22:04:23 +04:30
parent 6cb8f9a8d8
commit 18e4f486ae
9 changed files with 224 additions and 31 deletions
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.idea/misc.xml
Generated
+1 -1
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@@ -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
+36 -11
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@@ -1,10 +1,17 @@
package org;
import org.behavior.Serviceable;
import org.model.Vehicle;
import org.util.VehicleInspector;
import org.model.GasCar;
import org.model.ElectricCar;
import org.model.SportsCar;
public class Main {
public static void main(String[] args) {
// ============================================================
// TODO 1:
// TODO 1: .
// Create one instance of each vehicle type:
// - ElectricCar
// - GasCar
@@ -16,13 +23,17 @@ public class Main {
// • Store them in variables such as:
// ElectricCar tesla = new ElectricCar(...);
// ============================================================
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);
// ============================================================
// TODO 2:
// TODO 2: .
// Create an array of Vehicle:
// Vehicle[] vehicles = { ... };
//
@@ -31,13 +42,13 @@ public class Main {
// subclasses (ElectricCar, GasCar, SportsCar) are stored
// as their parent type (Vehicle).
// ============================================================
Vehicle[] vehicles = {tesla, ferrari, toyota};
// ============================================================
// TODO 3:
// TODO 3: .
// Loop through the Vehicle[] array and:
// • Call v.basicInfo();
// • Print a blank line after each.
@@ -46,13 +57,16 @@ public class Main {
// Demonstrate that all subclasses share the same Vehicle
// behavior and can call inherited methods.
// ============================================================
for (Vehicle v : vehicles) {
v.basicInfo();
System.out.println();
}
// ============================================================
// TODO 4:
// TODO 4: .
// Use VehicleInspector to inspect each vehicle:
//
// VehicleInspector.inspect(v);
@@ -61,13 +75,15 @@ public class Main {
// • Demonstrate the use of `instanceof`
// • Show subclass‑specific inspection messages
// ============================================================
for (Vehicle v : vehicles) {
VehicleInspector.inspect(v);
}
// ============================================================
// TODO 5:
// TODO 5: .
// Create an array of Serviceable:
// Serviceable[] serviceables = { ... };
//
@@ -79,6 +95,7 @@ public class Main {
// Vehicle v = (Vehicle) s;
//
// ============================================================
Serviceable[] serviceables = {tesla, ferrari, toyota};
@@ -105,19 +122,27 @@ public class Main {
//
// Add blank lines between each item for readability.
// ============================================================
for (Serviceable s : serviceables) {
Vehicle v = (Vehicle) s;
if (s.needsService(v)) {
System.out.println("Brand: " + v.getBrand() + " Model: " + v.getModel());
s.performService();
}
else System.out.println("The car does not need service");
System.out.println();
}
// ============================================================
// TODO 7 (Optional):
// TODO 7 (Optional): .
// After everything is done, print a final message:
//
// System.out.println("=== Workshop Completed ===");
//
// ============================================================
System.out.println("=== Workshop Completed ===");
src/main/java/org/model/Car.java
+28 -6
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@@ -18,24 +18,46 @@ public abstract class Car extends Vehicle implements Serviceable {
public Car(String brand, String model, int year,
double mileage, int seats) {
// TODO: Call super constructor
// TODO: Call super constructor .
super(brand, model, year, mileage);
this.seats = seats;
}
// TODO: Override getEnergyType() → return "Unknown"
// TODO: Override getEnergyType() → return "Unknown" .
// TODO: Override showDetails()
@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() + " Model: " + getModel() + " Year: " + getYear() + " Mileage: " + getMileage() + "Number of seats: " + seats);
}
/*
* Implement Serviceable methods:
* Implement Serviceable methods: .
*
* needsService(Vehicle v):
* needsService(Vehicle v): .
* - Check the mileage of the current car
* - If mileage > 10000 return true
* - Otherwise return false
*
* performService():
* performService(): .
* - Print: "General car service completed"
*/
@Override
public boolean needsService(Vehicle v) {
if(v.getMileage() > 10000) return true;
else return false;
}
@Override
public void performService() {
System.out.println("General car service completed");
}
}
src/main/java/org/model/ElectricCar.java
+28 -3
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@@ -27,13 +27,38 @@ public class ElectricCar extends Car implements Chargeable {
this.chargeLevel = chargeLevel;
}
// TODO: Override getEnergyType() → return "Electric"
// TODO: Override showDetails()
// 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("Capacity: " + batteryCapacity + "Charge level: " + chargeLevel);
}
// TODO: Implement charge(double amount)
// Validate negative
// Cap at 100
public void charge(double amount) {
if (amount < 0) System.out.println("invalid amount");
else chargeLevel += amount;
if (chargeLevel > 100) chargeLevel = 100;
}
@Override
public boolean needsService(Vehicle v) {
if(v.getMileage() > 8000) return true;
else return false;
}
@Override
public void performService() {
System.out.println("Battery system checked");
chargeLevel = 100;
}
}
src/main/java/org/model/GasCar.java
+30 -3
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@@ -27,13 +27,40 @@ public class GasCar extends Car implements Refuelable {
this.fuelType = fuelType;
}
// TODO: Override getEnergyType() → return fuelType + " (Gas)"
// TODO: Override getEnergyType() → return fuelType + " (Gas)" .
// TODO: Implement refuel(double amount)
@Override
public String getEnergyType() {
return (fuelType + " (Gas)");
}
// TODO: Implement refuel(double amount) .
// Validate amount
// Cap at 100
public void refuel(double amount) {
if (amount < 0) System.out.println("invalid amount");
else fuelLevel += amount;
// TODO: Override showDetails()
if (fuelLevel > 100) fuelLevel = 100;
}
// 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) {
if(v.getMileage() > 12000) return true;
else return false;
}
@Override
public void performService() {
System.out.println("Engine oil changed");
fuelLevel = 100;
}
}
src/main/java/org/model/HybridCar.java
+52
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@@ -0,0 +1,52 @@
package org.model;
import org.behavior.Chargeable;
import org.behavior.Refuelable;
public class HybridCar extends Car implements Chargeable, Refuelable {
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.chargeLevel = chargeLevel;
this.fuelLevel = fuelLevel;
}
public void refuel(double amount) {
if (amount < 0) System.out.println("invalid amount");
else fuelLevel += amount;
if (fuelLevel > 100) fuelLevel = 100;
}
public void charge(double amount) {
if (amount < 0) System.out.println("invalid amount");
else chargeLevel += amount;
if (chargeLevel > 100) chargeLevel = 100;
}
@Override
public void showDetails() {
super.showDetails();
System.out.println("Fuel level: " + fuelLevel + "Charge level: " + chargeLevel);
}
@Override
public String getEnergyType() {
return "Hybrid";
}
@Override
public boolean needsService(Vehicle v) {
if(v.getMileage() > 10000) return true;
else return false;
}
@Override
public void performService() {
System.out.println("Engine oil changed and battery system checked");
fuelLevel = 100;
chargeLevel = 100;
}
}
src/main/java/org/model/SportsCar.java
+17 -1
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@@ -24,7 +24,23 @@ public class SportsCar extends GasCar {
this.zeroToHundred = zeroToHundred;
}
// TODO: Override showDetails()
// TODO: Override showDetails() .
// Call super.showDetails()
// Print acceleration time
@Override
public void showDetails() {
super.showDetails();
System.out.println("Acceleration time: " + zeroToHundred);
}
@Override
public boolean needsService(Vehicle v) {
if(v.getMileage() > 5000) return true;
else return false;
}
@Override
public void performService() {
System.out.println("High-performance brake system checked");
}
}
src/main/java/org/model/Vehicle.java
+24 -5
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@@ -20,14 +20,33 @@ public abstract class Vehicle {
this.mileage = mileage;
}
// TODO: Create getters for all fields
// TODO: Create getters for all fields .
// TODO: Implement addMileage(double km)
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
// TODO: Declare abstract method getEnergyType()
public void addMileage(double km) {
if (km < 0) System.out.println("invalid number");
else mileage += km;
}
// TODO: Declare abstract method getEnergyType() .
public abstract String getEnergyType();
public void basicInfo() {
System.out.println(
year + " " + brand + " " + model +
src/main/java/org/util/VehicleInspector.java
+8 -1
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@@ -1,6 +1,9 @@
package org.util;
import org.*;
import org.model.ElectricCar;
import org.model.GasCar;
import org.model.SportsCar;
import org.model.Vehicle;
/*
@@ -14,9 +17,13 @@ public class VehicleInspector {
v.basicInfo();
// TODO:
// TODO: .
// If ElectricCar → print "Check battery system"
// If SportsCar → print "Check brakes and performance"
// If GasCar → print "Check engine and oil"
if (v instanceof GasCar) System.out.println("Check engine and oil");
else if (v instanceof ElectricCar) System.out.println("Check battery system");
else if (v instanceof SportsCar) System.out.println("Check brakes and performance");
System.out.println();
}
}