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e17e4a0f17 |
+30
-26
@@ -1,5 +1,12 @@
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package org;
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import org.behavior.Serviceable;
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import org.model.ElectricCar;
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import org.model.GasCar;
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import org.model.SportsCar;
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import org.model.Vehicle;
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import org.util.VehicleInspector;
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public class Main {
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public static void main(String[] args) {
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@@ -16,11 +23,9 @@ public class Main {
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// • Store them in variables such as:
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// ElectricCar tesla = new ElectricCar(...);
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// ============================================================
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ElectricCar tesla= new ElectricCar("tesla", "unknown", 2026, 0, 4, 100, 34);
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GasCar toyota= new GasCar("toyota", "corola", 2015, 100, 4, 56, "Oil");
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SportsCar f1=new SportsCar("f1?", "idk", 2026, 0, 2, 100, "Oil", 1.3);
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// ============================================================
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// TODO 2:
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// Create an array of Vehicle:
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@@ -31,7 +36,7 @@ public class Main {
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// subclasses (ElectricCar, GasCar, SportsCar) are stored
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// as their parent type (Vehicle).
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// ============================================================
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Vehicle[] vehicles={tesla, toyota, f1};
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@@ -46,11 +51,10 @@ public class Main {
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// Demonstrate that all subclasses share the same Vehicle
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// behavior and can call inherited methods.
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// ============================================================
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for (Vehicle v: vehicles) {
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v.basicInfo();
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System.out.println("\n");
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v.getEnergyType();
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// ============================================================
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// TODO 4:
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// Use VehicleInspector to inspect each vehicle:
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@@ -60,12 +64,9 @@ public class Main {
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// Purpose:
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// • Demonstrate the use of `instanceof`
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// • Show subclass‑specific inspection messages
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// ============================================================
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// ==========================================================
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VehicleInspector.inspect(v);
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}
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// ============================================================
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// TODO 5:
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// Create an array of Serviceable:
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@@ -79,10 +80,7 @@ public class Main {
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// Vehicle v = (Vehicle) s;
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//
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// ============================================================
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Serviceable[] serviceables ={toyota, tesla , f1};
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// ============================================================
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// TODO 6:
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@@ -105,10 +103,16 @@ public class Main {
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//
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// Add blank lines between each item for readability.
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// ============================================================
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for (Serviceable s: serviceables){
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Vehicle v = (Vehicle) s;
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if (s.needsService(v)){
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System.out.println(v.getBrand()+" "+v.getModel());
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s.performService();
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}
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else{
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System.out.println("the car does not need service");
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}
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}
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// ============================================================
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// TODO 7 (Optional):
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@@ -118,7 +122,7 @@ public class Main {
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//
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// ============================================================
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System.out.println("=== Workshop Completed ===");
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@@ -18,12 +18,17 @@ public abstract class Car extends Vehicle implements Serviceable {
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public Car(String brand, String model, int year,
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double mileage, int seats) {
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// TODO: Call super constructor
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super(brand , model, year, mileage);
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this.seats = seats;
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}
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// TODO: Override getEnergyType() → return "Unknown"
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@Override
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public String getEnergyType() {
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return "Unknown";
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}
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// TODO: Override showDetails()
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// Print brand, model, year, mileage, and number of seats
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@@ -38,4 +43,23 @@ public abstract class Car extends Vehicle implements Serviceable {
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* performService():
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* - Print: "General car service completed"
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*/
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@Override
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public void showDetails() {
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System.out.println(getBrand()+ " " + getModel() + " " + getYear()+ " "+getMileage()+ " "+ seats);
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}
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@Override
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public boolean needsService(Vehicle v) {
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if (v.getMileage()> 1000){
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return true;
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}
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else{
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return false;
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}
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}
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@Override
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public void performService() {
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System.out.println("General car service completed");
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}
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}
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@@ -29,11 +29,42 @@ public class ElectricCar extends Car implements Chargeable {
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// TODO: Override getEnergyType() → return "Electric"
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@Override
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public String getEnergyType() {
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return "Electric";
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}
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// TODO: Override showDetails()
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// Call super.showDetails()
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// Print battery capacity and charge level
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@Override
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public void showDetails() {
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super.showDetails();
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System.out.println(batteryCapacity+" "+chargeLevel);
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}
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// TODO: Implement charge(double amount)
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// Validate negative
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// Cap at 100
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@Override
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public void charge(double amount) {
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if (chargeLevel+amount<= batteryCapacity && chargeLevel+amount>=0) {
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chargeLevel += amount;
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}
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}
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public boolean needsService(ElectricCar ec) {
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if (ec.getMileage()>8000){
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return true;
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}
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else{
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return false;
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}
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}
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@Override
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public void performService() {
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System.out.println("Battery system checked");
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chargeLevel=100;
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}
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}
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@@ -29,11 +29,45 @@ public class GasCar extends Car implements Refuelable {
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// TODO: Override getEnergyType() → return fuelType + " (Gas)"
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@Override
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public String getEnergyType() {
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return fuelType+ "Gas";
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}
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// TODO: Implement refuel(double amount)
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// Validate amount
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// Cap at 100
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@Override
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public void refuel(double amount) {
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if (amount>0 && amount+fuelLevel<100){
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fuelLevel+=amount;
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}
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}
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// TODO: Override showDetails()
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// Call super.showDetails()
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// Print fuel level and fuel type
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@Override
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public void showDetails() {
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super.showDetails();
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System.out.println(fuelLevel+" "+fuelType);
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}
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public boolean needsService(GasCar gs) {
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if (gs.getMileage()>12000){
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return true;
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}
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else{
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return false;
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}
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}
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@Override
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public void performService() {
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System.out.println("Engine oil changed");
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fuelLevel=100;
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}
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}
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@@ -27,4 +27,24 @@ public class SportsCar extends GasCar {
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// TODO: Override showDetails()
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// Call super.showDetails()
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// Print acceleration time
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@Override
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public void showDetails() {
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super.showDetails();
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System.out.println(zeroToHundred);
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}
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public boolean needsService(SportsCar sc) {
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if (sc.getMileage()>5000){
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return true;
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}
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else{
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return false;
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}
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}
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@Override
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public void performService() {
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System.out.println("High-performance brake system checked");
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}
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}
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@@ -21,12 +21,32 @@ public abstract class Vehicle {
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}
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// TODO: Create getters for all fields
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public String getBrand(){
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return brand;
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}
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public String getModel(){
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return model;
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}
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public int getYear(){
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return year;
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}
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public double getMileage(){
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return mileage;
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}
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// TODO: Implement addMileage(double km)
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// If km is negative → print error
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// Otherwise increase mileage
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public void addMileage(double km){
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if (km < 0){
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System.out.println("km should be positive");
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}
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else{
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mileage+=km;
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}
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}
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// TODO: Declare abstract method getEnergyType()
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public abstract String getEnergyType();
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public void basicInfo() {
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System.out.println(
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@@ -1,6 +1,8 @@
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package org.util;
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import org.*;
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import org.model.ElectricCar;
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import org.model.SportsCar;
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import org.model.Vehicle;
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/*
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@@ -13,7 +15,15 @@ public class VehicleInspector {
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public static void inspect(Vehicle v) {
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v.basicInfo();
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if (v instanceof ElectricCar){
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System.out.println("Check battery system");
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}
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else if (v instanceof SportsCar){
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System.out.println("Check brakes and performance");
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}
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else {
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System.out.println("Check engine and oil");
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}
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// TODO:
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// If ElectricCar → print "Check battery system"
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// If SportsCar → print "Check brakes and performance"
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Reference in New Issue
Block a user