[정준영_BackEnd] 2주차 과제 제출합니다.

src/main/java/racingcar/Application.java

@@ -2,6 +2,20 @@
 
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        Input input = new Input();
+        Output output = new Output();
+
+        String[] carNames = input.readCarName();
+        int rounds = input.readRound();
+
+        Racing racing = new Racing(carNames);
+
+        for (int i = 0; i < rounds; i++)
+        {
+            racing.raceRound();
+            output.printRaceStatus(racing.getCars());
+        }
+
+        output.printWinner(racing.getWinners());
     }
 }

src/main/java/racingcar/Car.java

@@ -0,0 +1,36 @@
+package racingcar;
+
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class Car {
+    private final String name;
+    private int position;
+
+    public Car(String name)
+    {
+        verificationName(name);
+        this.name = name;
+        this.position = 0;
+    }
+
+    public void verificationName(String name)
+    {
+        if (name.length() > 5)
+        {
+            throw new IllegalArgumentException("차 이름은 5자 이하만 가능합니다.");
+        }
+    }
+
+    public void move()
+    {
+        if (Randoms.pickNumberInRange(0, 9) >= 4)
+        {
+            this.position++;
+        }
+    }
+
+    public String getName() {return name;}
+
+    public int getPosition() {return position;}
+}

src/main/java/racingcar/Input.java

@@ -0,0 +1,30 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Console;
+
+public class Input {
+
+    public String[] readCarName()
+    {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        return Console.readLine().split(",");
+    }
+
+    public int readRound()
+    {
+        System.out.println("시도할 횟수는 몇회인가요?");
+        String input = Console.readLine().trim();
+        int rounds = Integer.parseInt(input);
+        verificationRound(rounds);
+
+        return rounds;
+    }
+
+    private void verificationRound(int value)
+    {
+        if (value <= 0)
+        {
+            throw new IllegalArgumentException("시도 회수는 1 이상이어야 합니다.");
+        }
+    }
+}

src/main/java/racingcar/Output.java

@@ -0,0 +1,19 @@
+package racingcar;
+
+import java.util.List;
+
+public class Output {
+    public void printRaceStatus(List<Car> cars)
+    {
+        for (Car car : cars)
+        {
+            System.out.println(car.getName() + " : " + "-".repeat(car.getPosition()));
+        }
+        System.out.println();
+    }
+
+    public void printWinner(List<String> winners)
+    {
+        System.out.println("최종 우승자 : " + String.join(", ", winners));
+    }
+}

src/main/java/racingcar/Racing.java

@@ -0,0 +1,60 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Console;
+import java.util.List;
+import java.util.ArrayList;
+
+
+public class Racing
+{
+    private final List<Car> cars = new ArrayList<>();
+
+    public Racing(String[] names)
+    {
+        for (String name : names)
+        {
+            cars.add(new Car(name.trim()));
+        }
+    }
+
+    public void raceRound()
+    {
+        for (Car car : cars)
+        {
+            car.move();
+        }
+    }
+
+
+    public List<String> getWinners()
+    {
+        int maxPosition = findMaxPosition();
+        List<String> winners = new ArrayList<>();
+        for (Car car : cars)
+        {
+            if (car.getPosition() == maxPosition)
+            {
+                winners.add(car.getName());
+            }
+        }
+        return winners;
+    }
+
+    private int findMaxPosition()
+    {
+        int max = 0;
+        for (Car car : cars)
+        {
+            if (car.getPosition() > max)
+            {
+                max = car.getPosition();
+            }
+        }
+        return max;
+    }
+
+    public List<Car> getCars()
+    {
+        return cars;
+    }
+}