[손국균_BackEnd] 1주차 과제 제출합니다.

src/main/java/racingcar/Application.java

@@ -2,6 +2,7 @@
 
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        GameManager gameManager = new GameManager();
+        gameManager.start();
     }
 }

src/main/java/racingcar/AttemptReader.java

@@ -0,0 +1,15 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Console;
+
+public class AttemptReader {
+    public static int read() {
+        System.out.println("시도할 회수는 몇 회인가요?");
+        String inputNum = Console.readLine();
+        int attempts = Integer.parseInt(inputNum);
+        if (attempts <= 0 ) {
+            throw new IllegalArgumentException ("0이상 입력하세요.");
+        }
+        return attempts;
+    }
+}

src/main/java/racingcar/Car.java

@@ -0,0 +1,30 @@
+package racingcar;
+
+public class Car implements Raceable{
+    private final String name;
+    private int distance = 0;
+    public Car (String name) {
+        validateName(name);
+        this.name = name;
+    }
+
+    private void validateName(String name){
+        if (name == null || name.isBlank() ||  name.length() > 5 || name.contains(" ")) {
+            throw new IllegalArgumentException ("올바른 값을 입력해주세요. (문자열을 입력하세요.)");
+        }
+    }
+
+    public void move(int randomNumber) {
+        if (randomNumber >= 4) {
+            distance ++;
+        }
+    }
+
+    public int getDistance() {
+        return distance;
+    }
+
+    public String getName() {
+        return name;
+    }
+}

src/main/java/racingcar/CarCreator.java

@@ -0,0 +1,26 @@
+package racingcar;
+import camp.nextstep.edu.missionutils.Console;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class CarCreator {
+    public static List<Raceable> createCars() {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        String inputName = Console.readLine();
+        String[] names = inputName.split(",");
+
+        Set<String> nameSet = new HashSet<>(List.of(names));
+        if (nameSet.size() != names.length) {
+            throw new IllegalArgumentException("중복된 값 입니다.");
+        }
+
+        List<Raceable> cars = new ArrayList<>();
+        for (String name : names) {
+            cars.add(new Car(name));
+        }
+
+        return cars;
+    }
+}

src/main/java/racingcar/GameManager.java

@@ -0,0 +1,24 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Randoms;
+import java.util.List;
+
+public class GameManager {
+    public void start() {
+        List<Raceable> cars = CarCreator.createCars();
+        int attempts = AttemptReader.read();
+
+        System.out.println();
+        System.out.println("실행 결과");
+        for(int i = 1; i <= attempts; i++){
+            for (Raceable car : cars) {
+                int randomNumber = Randoms.pickNumberInRange(0, 9);
+                car.move(randomNumber);
+                System.out.println(car.getName() + " : " + "-".repeat(car.getDistance()));
+            }
+            System.out.println();
+        }
+        WinnerPicker winnerPicker = new WinnerPicker();
+        winnerPicker.printWinner(cars);
+    }
+}

src/main/java/racingcar/Raceable.java

@@ -0,0 +1,7 @@
+package racingcar;
+
+public interface Raceable {
+    String getName();
+    int getDistance();
+    void move(int randomNumber);
+}

src/main/java/racingcar/WinnerPicker.java

@@ -0,0 +1,23 @@
+package racingcar;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class WinnerPicker {
+    public void printWinner(List<Raceable> cars) {
+        int maxdistance = 0;
+        for (Raceable car : cars) {
+            if (car.getDistance() > maxdistance) {
+                maxdistance = car.getDistance();
+            }
+        }
+
+        List<String> winnercars = new ArrayList<>();
+        for (Raceable car : cars) {
+            if (car.getDistance() == maxdistance) {
+                winnercars.add(car.getName());
+            }
+        }
+        System.out.println("최종 우승자 : " + String.join(", ", winnercars));
+    }
+}