[자동자 경주 게임] 이준섭 미션 제출합니다.

src/main/java/racingcar/Application.java

@@ -1,7 +1,99 @@
 package racingcar;
 
+import camp.nextstep.edu.missionutils.Console;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO 구현 진행
+        List<Car> cars = createCars();
+
+        int tryCount = receiveTryCount();
+
+        runRacingGame(cars, tryCount);
+
+        printWinners(findWinners(cars));
+    }
+
+    private static List<Car> createCars() {
+        List<String> carNames = null;
+        List<Car> cars = new ArrayList<>();
+        while (carNames == null) {
+            System.out.println("경주할 자동차 이름을 입력하세요. (이름은 쉼표(,) 기준으로 구분)");
+            String input = Console.readLine();
+            try {
+                carNames = Arrays.asList(input.split(","));
+                carNames.forEach(inputName -> cars.add(new Car(inputName))); // carNames 리스트의 각 요소를 inputName으로 받아서 객체를 생성하고 cars 리스트에 추가함.
+                break;
+            } catch (IllegalArgumentException e) {
+                System.out.println("[ERROR] 올바른 형식의 자동차 이름을 입력하세요.");
+            }
+        }
+        return cars;
+    }
+
+    private static int receiveTryCount() {
+        int tryCount = 0;
+        while (tryCount == 0) {
+            System.out.println("시도할 횟수는 몇 회인가요?");
+            String input = Console.readLine();
+            try {
+                tryCount = Integer.parseInt(input); // 문자열을 정수로 변환하는 문법
+                validateTryCount(tryCount);
+                break;
+            }
+            catch (IllegalArgumentException e) {
+                System.out.println("[ERROR] 올바른 형식의 숫자를 입력하세요.");
+            }
+        }
+        return tryCount;
+    }
+
+    private static void validateTryCount(int tryCount) {
+        if (tryCount <= 0) {
+            throw new IllegalArgumentException();
+        }
+    }
+
+    private static void runRacingGame(List<Car> cars, int tryCount) {
+        System.out.println("\n실행 결과");
+        for (int i = 0; i < tryCount; i++) {
+            for (Car car : cars) {
+                car.moveForward();
+            }
+            printRoundResult(cars);
+        }
+    }
+
+    private static void printRoundResult(List<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car.getName() + " : " + new String(new char[car.getPosition()]).replace('\0', '-'));
+        }
+        System.out.println();
+    }
+
+    private static List<String> findWinners(List<Car> cars) {
+        int maxPosition = getMaxPosition(cars);
+        List<String> winners = new ArrayList<>();
+        for (Car car : cars) {
+            if (car.getPosition() == maxPosition) {
+                winners.add(car.getName());
+            }
+        }
+        return winners;
+    }
+
+    private static int getMaxPosition(List<Car> cars) {
+        int maxPosition = 0;
+        for (Car car : cars) {
+            maxPosition = Math.max(maxPosition, car.getPosition());
+        }
+        return maxPosition;
+    }
+
+    private static void printWinners(List<String> winners) {
+        System.out.println("최종 우승자 : " + String.join(", ", winners));
     }
 }

src/main/java/racingcar/Car.java

@@ -1,12 +1,36 @@
 package racingcar;
 
+import camp.nextstep.edu.missionutils.Randoms;
+
 public class Car {
+    static final int MAX_NAME_LENGTH = 5;
     private final String name;
-    private int position = 0;
+    private int position;
+
+    public Car(String inputName) {
+        validateCarNames(inputName);
+        this.name = inputName;
+        this.position = 0;
+    }
+
+    public void moveForward() {
+        int randomValue = Randoms.pickNumberInRange(0,9);
+        if (randomValue >= 4) {
+            position++;
+        }
+    }
+
+    public String getName() {
+        return name;
+    }
 
-    public Car(String name) {
-        this.name = name;
+    public int getPosition() {
+        return position;
     }
 
-    // 추가 기능 구현
+    private void validateCarNames(String inputName) {
+        if (inputName.isEmpty() || inputName.length() > MAX_NAME_LENGTH) {
+            throw new IllegalArgumentException();
+        }
+    }
 }