필드는private / getter,setter는 public으로 캡슐화 추가_8일차

src/Bus.java

@@ -1,49 +1,52 @@
+import java.util.UUID;
+
 public class Bus extends Car implements PassengerBording, ChangeSpeed{
 
-    public Bus(int maxCnt, long price, String busNum, long gasAmount, long currentSpeed){
-        super(maxCnt, 0, price, busNum, gasAmount, currentSpeed, Status.DRIVE);
+    public Bus(int maxCnt, long price, long gasAmount, long currentSpeed){
+        super(maxCnt, 0, price, UUID.randomUUID().toString(), gasAmount, currentSpeed, Status.DRIVE);
     }
 
     public void reduceGasAmount(int amount){
-        this.gasAmount -= amount;
-        System.out.println("현재 주유량은: " + this.gasAmount);
+        setGasAmount(-amount);
+        System.out.println("현재 주유량은: " + getGasAmount());
     }
 
     public void changeBusStatus(boolean EndDrive) {
-        if( this.gasAmount <= 0 ){
-            this.status = Status.TOGARAGE;
+        if( getGasAmount() <= 0 ){
+            setStatus(Status.TOGARAGE);
+            setCurrentSpeed(-getCurrentSpeed());
             System.out.println("주유량이 부족하여 차고지행으로 변경됩니다.");
-        }else if ( this.gasAmount < 10 ){
+        }else if ( getGasAmount()< 10 ){
             System.out.println("주유가 필요합니다!!!");
         }
 
         if (EndDrive){
-            this.status = Status.TOGARAGE;
+            setStatus(Status.TOGARAGE);
             System.out.println("차고지행으로 변경되었습니다.");
         }
     }
 
     public void passengerBoarding(int passengerCnt){
-        if (this.status == Status.TOGARAGE){
+        if (getStatus() == Status.TOGARAGE){
             System.out.println("현재 버스는 운행중이 아닙니다.");
         }else{
-            if (maxCnt < this.currentCnt + passengerCnt) {
+            if (getMaxCnt() < getCurrentCnt() + passengerCnt) {
                 System.out.println("정원 초과입니다. 다음 버스를 탑승하세요");
             }else{
-                this.currentCnt += passengerCnt;
-                System.out.println(passengerCnt + "명이 탑승하여 현재 " + this.currentCnt + "명 입니다.");
+                setCurrentCnt(passengerCnt);
+                System.out.println(passengerCnt + "명이 탑승하여 현재 " + getCurrentCnt() + "명 입니다.");
             }
         }
     }
 
     public void changeSpeed(long changeSpeedAmount){
         System.out.println(this.toString());
 
-        if( this.gasAmount <10){
+        if( getGasAmount() <10){
             System.out.println("쥬유량을 확인해주세요.");
         }else{
-            this.currentSpeed += changeSpeedAmount;
-            System.out.println("현재 속도는 " + this.currentSpeed);
+            setCurrentSpeed(changeSpeedAmount);
+            System.out.println("현재 속도는 " + getCurrentSpeed());
         }
     }
 

src/Car.java

@@ -1,23 +1,90 @@
 public abstract class Car {
-    int maxCnt;
-    int currentCnt;
-    long price;
-    String carNum;
-    long gasAmount;
-    long currentSpeed;
-    Status status;
+    // 필드를 전부 private으로 제어하여 외부에서 필드 값을 바꾸지 못하게 막는다.
+    // Getter Setter만 public으로 제공하여 접근 가능하게 한다!
+    private int maxCnt;
+    private int currentCnt;
+    private long price;
+    private String carNum;
+    private long gasAmount;
+    private long currentSpeed;
+    private Status status;
 
+    //Getter Setter 변경!
 
-    public Car(int maxCnt, int currentCnt, long price, String carNum, long gasAmount, long currentSpeed, Status status) {
+
+    public void setMaxCnt(int maxCnt) {
         this.maxCnt = maxCnt;
-        this.currentCnt = currentCnt;
+    }
+
+    public int getCurrentCnt() {
+        return currentCnt;
+    }
+
+    public void setCurrentCnt(int passengerCnt) {
+        this.currentCnt += passengerCnt;
+    }
+
+    public long getPrice() {
+        return price;
+    }
+
+    public void setPrice(long price) {
         this.price = price;
-        this.carNum = carNum;
-        this.gasAmount = gasAmount;
-        this.currentSpeed = currentSpeed;
+    }
+
+    public long getGasAmount() {
+        return gasAmount;
+    }
+
+    public void setGasAmount(long gasAmount) {
+        this.gasAmount += gasAmount;
+    }
+
+    public long getCurrentSpeed() {
+        return currentSpeed;
+    }
+
+    public void setCurrentSpeed(long changeSpeedAmount) {
+        this.currentSpeed += changeSpeedAmount;
+    }
+
+    public Status getStatus() {
+        return status;
+    }
+
+    public void setStatus(Status status) {
         this.status = status;
     }
 
+    public int getMaxCnt() {
+        return maxCnt;
+    }
+
+    public String getCarNum() {
+        return carNum;
+    }
+
+    public void setCarNum(String carNum) {
+        this.carNum = carNum;
+    }
+
+    public Car(int maxCnt, int currentCnt, long price, String carNum, long gasAmount, long currentSpeed, Status status) {
+        setMaxCnt(maxCnt);
+        setCurrentCnt(currentCnt);
+        setPrice(price);
+        setCarNum(carNum);
+        setGasAmount(gasAmount);
+        setCurrentSpeed(currentSpeed);
+        setStatus(status);
+    }
+
+    public Car(String carNum, long gasAmount, long currentSpeed, Status status){
+        setCarNum(carNum);
+        setGasAmount(gasAmount);
+        setCurrentSpeed(currentSpeed);
+        setStatus(status);
+    }
+
     @Override
     public String toString() {
         return "Car{" +

src/ChangeSpeed.java

@@ -1,3 +1,3 @@
 public interface ChangeSpeed {
-    public void changeSpeed(long changeSpeedAmount);
+    void changeSpeed(long changeSpeedAmount);
 }

src/Main.java

@@ -2,7 +2,9 @@
 
 public class Main {
     public static void main(String[] args){
-        Bus bus = new Bus(20, 1250, UUID.randomUUID().toString(), 30, 0);
+        Bus bus = new Bus(20, 1250, 30, 0);
+        Taxi taxi = new Taxi(30);
+        Taxi taxi2 = new Taxi(9);
 
         //((PassengerBording) bus).passengerBoarding(10);
         bus.passengerBoarding(10);
@@ -13,18 +15,23 @@ public static void main(String[] args){
         bus.passengerBoarding(1);
         bus.reduceGasAmount(15);
         bus.changeBusStatus(false);
+        bus.passengerBoarding(1);
         System.out.println(bus.toString());
+        System.out.println("============================================");
 
-//        출력 결과!
-//        10명이 탑승하여 현재 10명 입니다.
-//        Car{maxCnt=20, currentCnt=10, price=1250, carNum='d1da6703-3547-4c7b-afde-e7d5bbcf0f75', gasAmount=30, currentSpeed=0, status=DRIVE}
-//        현재 속도는 10
-//        현재 주유량은: 15
-//        10명이 탑승하여 현재 20명 입니다.
-//        정원 초과입니다. 다음 버스를 탑승하세요
-//        현재 주유량은: 0
-//        주유량이 부족하여 차고지행으로 변경됩니다.
-//        Car{maxCnt=20, currentCnt=20, price=1250, carNum='d1da6703-3547-4c7b-afde-e7d5bbcf0f75', gasAmount=0, currentSpeed=10, status=TOGARAGE}
+        System.out.println(taxi.toString());
+        taxi.startDrive();
+        taxi.passengerBoarding(2);
+        taxi.setDestination("구디");
+        taxi.setToDestinationDistance(128);
+        taxi.changeSpeed(60);
+        taxi.addFee();
+        taxi.printFinalFee();
+        System.out.println(taxi.toString());
+        System.out.println("============================================");
 
+        System.out.println(taxi2.toString());
+        //
+        taxi2.startDrive();
     }
 }

src/PassengerBording.java

@@ -1,3 +1,3 @@
 public interface PassengerBording {
-    public void passengerBoarding(int passengerCnt);
+    void passengerBoarding(int passengerCnt);
 }

src/Taxi.java

@@ -0,0 +1,108 @@
+import java.util.UUID;
+
+public class Taxi extends Car implements PassengerBording, ChangeSpeed{
+    private String destination;
+    private long defaultDistance;
+    private long toDestinationDistance;
+    private long defaultFee;
+    private long perDistanceFee;
+
+    public String getDestination() {
+        return destination;
+    }
+
+    public void setDestination(String destination) {
+        this.destination = destination;
+    }
+
+    public long getDefaultDistance() {
+        return defaultDistance;
+    }
+
+    public void setDefaultDistance(long defaultDistance) {
+        this.defaultDistance = defaultDistance;
+    }
+
+    public long getToDestinationDistance() {
+        return toDestinationDistance;
+    }
+
+    public void setToDestinationDistance(long toDestinationDistance) {
+        this.toDestinationDistance = toDestinationDistance;
+    }
+
+    public long getDefaultFee() {
+        return defaultFee;
+    }
+
+    public void setDefaultFee(long defaultFee) {
+        this.defaultFee = defaultFee;
+    }
+
+    public long getPerDistanceFee() {
+        return perDistanceFee;
+    }
+
+    public void setPerDistanceFee(long perDistanceFee) {
+        this.perDistanceFee = perDistanceFee;
+    }
+
+    public Taxi(long gasAmount) {
+        super(UUID.randomUUID().toString(), gasAmount, 0, Status.NORMAL);
+        setDefaultFee(3200);
+        setDefaultDistance(100);
+        setPerDistanceFee(200);
+    }
+
+    @Override
+    public String toString() {
+        return "Taxi{" +
+                "destination='" + destination + '\'' +
+                ", defaultDistance=" + defaultDistance +
+                ", toDestinationDistance=" + toDestinationDistance +
+                ", defaultFee=" + defaultFee +
+                ", perDistanceFee=" + perDistanceFee +
+                ", price=" + getPrice() +
+                ", carNum=" + getCarNum() +
+                ", status=" + getStatus() +
+                ", curSpeed=" + getCurrentSpeed() +
+                '}';
+    }
+
+    public void startDrive(){
+        if(getGasAmount() < 10){
+            System.out.println("주유량이 부족합니다. 주유해주세요.");
+        }else {
+            System.out.println("운행 가능합니다. 안전벨트를 매주세요");
+        }
+    }
+
+    public void addFee(){
+        if(getToDestinationDistance() < getDefaultDistance()){
+            System.out.println("추가요금이 없습니다.");
+        }else{
+            setPrice((getToDestinationDistance() - getDefaultDistance()) * getPerDistanceFee());
+            System.out.println("추가 요금은 " + (getPrice() - getDefaultFee()) +"원 입니다.");
+        }
+    }
+
+    public void printFinalFee(){
+        System.out.println("전체 요금은 "+ getPrice() + "원 입니다.");
+    }
+
+    @Override
+    public void changeSpeed(long changeSpeedAmount) {
+        setCurrentSpeed(changeSpeedAmount);
+        System.out.println("현재 속도는" + getCurrentSpeed() + " 입니다.");
+    }
+
+    @Override
+    public void passengerBoarding(int passengerCnt) {
+        if(getStatus() != Status.NORMAL){
+            System.out.println("탑승 가능한 상태가 아닙니다. 다음 택시를 이용하세요!");
+        }else{
+            System.out.println(passengerCnt + "명의 손님이 탑승했습니다. 운행을 시작합니다.");
+            setStatus(Status.DRIVE);
+        }
+    }
+}