[김세진] 프리코스 미션 제출합니다.

CarRaceController.java

@@ -0,0 +1,19 @@
+public class CarRaceController {
+    private CarRaceModel model;
+    private CarRaceView view;
+    private int raceNum; // 사용자 입력값 / 레이스 횟수
+
+    public CarRaceController(CarRaceModel model, CarRaceView view) {
+        this.model = model;
+        this.view = view;
+    }
+
+    public void startRace(int raceNum) {
+        this.raceNum = raceNum;
+        for (int nowRace = 0; nowRace < raceNum; nowRace++) {
+            model.race();
+            view.printRaceInfo(model.getCarList(), model.getCarRaceInfo());
+        }
+        view.printResult(model.getCarList(), model.getCarRaceInfo(), model.getWinnerLength());
+    }
+}

CarRaceModel.java

@@ -0,0 +1,45 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+public class CarRaceModel {
+    private List<String> carList; // 사용자 입력값 / 자동차 이름
+    private List<String> carRaceInfo; // 자동차마다의 레이스 상황값
+    private Random random;
+    private int winnerLen = 0; // 레이스에서의 최대 길이
+
+    public CarRaceModel(List<String> carList) {
+        this.carList = carList;
+        this.carRaceInfo = new ArrayList<>(carList.size());
+        for (int i = 0; i < carList.size(); i++) {
+            this.carRaceInfo.add("");
+        }
+        this.random = new Random();
+    }
+
+    public void race() {
+        for (int i = 0; i < carList.size(); i++) {
+            raceStart(i);
+        }
+    }
+
+    private void raceStart(int i) {
+        int randomNumber = random.nextInt(10);
+        if (randomNumber <= 4) {
+            carRaceInfo.set(i, carRaceInfo.get(i) + "-");
+            winnerLen = Math.max(winnerLen, carRaceInfo.get(i).length());
+        }
+    }
+
+    public List<String> getCarList() {
+        return carList;
+    }
+
+    public List<String> getCarRaceInfo() {
+        return carRaceInfo;
+    }
+
+    public int getWinnerLength() {
+        return winnerLen;
+    }
+}

CarRaceView.java

@@ -0,0 +1,26 @@
+import java.util.List;
+
+public class CarRaceView {
+    public void printRaceInfo(List<String> carList, List<String> carRaceInfo) {
+        for (int i = 0; i < carList.size(); i++) {
+            System.out.println(carList.get(i) + " : " + carRaceInfo.get(i));
+        }
+        System.out.println();
+    }
+
+    public void printResult(List<String> carList, List<String> carRaceInfo, int winnerLen) {
+        boolean firstWinner = true;
+        System.out.print("최종 우승자 : ");
+
+        for (int i = 0; i < carList.size(); i++) {
+            if (carRaceInfo.get(i).length() == winnerLen) {
+                if (firstWinner) {
+                    firstWinner = false;
+                    System.out.print(carList.get(i));
+                    continue;
+                }
+                System.out.print(", " + carList.get(i));
+            }
+        }
+    }
+}

Main.java

@@ -0,0 +1,86 @@
+import java.util.List;
+import java.util.Scanner;
+import java.util.ArrayList;
+
+public class Main {
+
+    static Scanner scanner ;
+    static List<String> carList ;
+
+    public static void main(String[] args) {
+        scanner = new Scanner(System.in);
+
+        System.out.println("경주할 자동차 이름을 입력하세요. (이름은 쉼표(,) 기준으로 구분");
+        getCarList();
+
+        System.out.println("시도할 회수는 몇회인가요?");
+        int raceNum = getRaceNum();
+
+        // int raceNum = Integer.parseInt(scanner.nextLine());
+        System.out.println();
+
+        CarRaceModel model = new CarRaceModel(carList);
+        CarRaceView view = new CarRaceView();
+        CarRaceController controller = new CarRaceController(model, view);
+        controller.startRace(raceNum);
+    }
+
+    public static List<String> getCarList(){
+        carList = new ArrayList<>();
+
+        while (true) {
+            String input = scanner.nextLine().trim();
+
+            try {
+                validateInput(input);
+                break;
+            } catch (IllegalArgumentException e) {
+                System.out.println("[ERROR] " + e.getMessage());
+            }
+        }
+        return carList ;
+    }
+
+    public static List<String> checkCarName(String input) { // 입력받은 차 이름 반환
+        List<String> checkedNames = new ArrayList<>();
+        String[] names = input.split(",");
+
+        for (String name : names) {
+            if (name.length() <= 5) {
+                checkedNames.add(name);
+            }
+        }
+        return checkedNames;
+    }
+
+    private static void validateInput(String input) throws IllegalArgumentException {
+        if (input.isEmpty()) {
+            throw new IllegalArgumentException("입력이 비어있습니다.");
+        }
+
+        String[] names = input.split(",");
+        for (String name : names) {
+            if (name.trim().isEmpty()) {
+                throw new IllegalArgumentException("빈 자동차 이름이 있습니다.");
+            }
+            if (name.trim().length() > 5) {
+                throw new IllegalArgumentException("자동차 이름은 5자 이하여야 합니다.");
+            }
+            carList.add(name);
+        }
+    }
+
+    public static int getRaceNum(){
+        int raceNum ;
+        while (true) {
+            try {
+                raceNum = scanner.nextInt();                
+                break;
+            } catch (IllegalArgumentException e) {
+                System.out.println("[ERROR] " + e.getMessage());
+                scanner.nextLine();
+            }
+        }
+        return raceNum;
+    }
+}

README.md

@@ -1 +1,9 @@
-# java-racingcar-precourse
+# java-racingcar-precourse
+
+1. 안내문구 프린트하기
+2. 사용자 문자 입력받기
+3. 사용자 입력 쉼표로 분리하기
+4. 사용자 숫자 입력받기
+5. 입력된 숫자만큼 무작위로 자동차 주행하기
+   1. else, switch/case 사용 불가
+6. 우승자 선정