[전종민_BackEnd] 2주차 과제 제출합니다.

src/main/java/racingcar/Application.java

@@ -1,7 +1,18 @@
 package racingcar;
 
+import java.util.List;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        List<String> carNames = InputView.getCarNames();
+        int tryCount = InputView.getTryCount();
+
+        List<Car> cars = CarFactory.createCars(carNames);
+
+        System.out.println();
+        Race race = new Race(cars, tryCount);
+        race.start();
+
+        ResultView.printWinners(race.getWinners());
     }
 }

src/main/java/racingcar/Car.java

@@ -0,0 +1,32 @@
+package racingcar;
+
+public class Car {
+    private static final int MOVE_THRESHOLD = 4;
+    private static final String POSITION_MARK = "-";
+
+    private final String name;
+    private int position = 0;
+
+    public Car(String name) {
+        this.name = name;
+    }
+
+    public void move(int randomNumber) {
+        if (randomNumber >= MOVE_THRESHOLD) {
+            position++;
+        }
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public String toString() {
+        return name + " : " + POSITION_MARK.repeat(position);
+    }
+}

src/main/java/racingcar/CarFactory.java

@@ -0,0 +1,14 @@
+package racingcar;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import racingcar.Car;
+
+public class CarFactory {
+    public static List<Car> createCars(List<String> names) {
+        return names.stream()
+                .map(String::trim)
+                .map(Car::new)
+                .collect(Collectors.toList());
+    }
+}

src/main/java/racingcar/InputView.java

@@ -0,0 +1,28 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Console;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class InputView {
+    private static final int MAX_NAME_LENGTH = 5;
+
+    public static List<String> getCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        String input = Console.readLine();
+        List<String> names = Arrays.asList(input.split(","));
+
+        for (String name : names) {
+            if (name.trim().length() > MAX_NAME_LENGTH) {
+                throw new IllegalArgumentException("자동차 이름은 5자 이하만 가능합니다.");
+            }
+        }
+        return names;
+    }
+
+    public static int getTryCount() {
+        System.out.println("시도할 회수는 몇회인가요?");
+        return Integer.parseInt(Console.readLine());
+    }
+}

src/main/java/racingcar/Race.java

@@ -0,0 +1,45 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Race {
+    private final List<Car> cars;
+    private final int tryCount;
+
+    public Race(List<Car> cars, int tryCount) {
+        this.cars = cars;
+        this.tryCount = tryCount;
+    }
+
+    public void start() {
+        for (int i = 0; i < tryCount; i++) {
+            moveCars();
+            ResultView.printRaceResult(cars);
+        }
+    }
+
+    private void moveCars() {
+        for (Car car : cars) {
+            int number = Randoms.pickNumberInRange(0, 9);
+            car.move(number);
+        }
+    }
+
+    public List<String> getWinners() {
+        int maxPosition = cars.stream()
+                .mapToInt(Car::getPosition)
+                .max()
+                .orElse(0);
+
+        List<String> winners = new ArrayList<>();
+        for (Car car : cars) {
+            if (car.getPosition() == maxPosition) {
+                winners.add(car.getName());
+            }
+        }
+        return winners;
+    }
+}

src/main/java/racingcar/ResultView.java

@@ -0,0 +1,16 @@
+package racingcar;
+
+import java.util.List;
+
+public class ResultView {
+    public static void printRaceResult(List<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car);
+        }
+        System.out.println();
+    }
+
+    public static void printWinners(List<String> winners) {
+        System.out.println("최종 우승자 : " + String.join(", ", winners));
+    }
+}