김도완_backend 2주차 과제제출

src/main/java/racingcar/Application.java

@@ -2,6 +2,15 @@
 
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+
+        String[] cars = Input.InputNames().split(",");
+        Exception.ExceptionName(cars);
+
+        int tryNum = Exception.ExceptionNum(Input.InputCount());
+
+        RacingGame game = new RacingGame(cars);
+
+        game.play(tryNum);
+        game.printWinners();
     }
 }

src/main/java/racingcar/Exception.java

@@ -0,0 +1,40 @@
+package racingcar;
+
+public class Exception {
+    public static void ExceptionName(String[] cars){
+
+        for (int i = 0; i < cars.length; i++) {
+            if (cars[i].isBlank()) {
+                throw new IllegalArgumentException("이름은 비어 있을 수 없습니다.");
+            }
+            if (!cars[i].equals(cars[i].trim())) {
+                throw new IllegalArgumentException("이름 앞뒤 공백은 허용되지 않습니다.");
+            }
+            if (cars[i].contains(" ")) {
+                throw new IllegalArgumentException("이름에 공백은 포함될 수 없습니다.");
+            }
+            if (cars[i].length() > 5) {
+                throw new IllegalArgumentException("이름은 5자 이하여야 합니다.");
+            }
+
+            for (int j = i + 1; j < cars.length; j++) {
+                if (cars[i].equals(cars[j])) {
+                    throw new IllegalArgumentException("중복된 이름은 사용할 수 없습니다.");
+                }
+            }
+        }
+    }
+    public static int ExceptionNum(String input) {
+        try {
+            int tryNum = Integer.parseInt(input);
+
+            if (tryNum < 1) {
+                throw new IllegalArgumentException("시도 횟수는 1 이상이어야 합니다.");
+            }
+
+            return tryNum;
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("시도 횟수는 숫자여야 합니다.");
+        }
+    }
+}

src/main/java/racingcar/Input.java

@@ -0,0 +1,14 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Console;
+
+public class Input {
+
+    public static String InputNames() {
+        return Console.readLine();
+    }
+
+    public static String InputCount() {
+        return Console.readLine();
+    }
+}

src/main/java/racingcar/RacingGame.java

@@ -0,0 +1,54 @@
+package racingcar;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class RacingGame {
+    private final String[] cars;
+    private final int[] positions;
+
+    public RacingGame(String[] cars) {
+        this.cars = cars;
+        this.positions = new int[cars.length];
+    }
+
+    public void play(int tryNum) {
+        System.out.println();
+        System.out.println("실행 결과");
+
+        for (int i = 0; i < tryNum; i++) {
+            for (int j = 0; j < cars.length; j++) {
+                if (Randoms.pickNumberInRange(0, 9) >= 4) {
+                    positions[j]++;
+                }
+                System.out.print(cars[j] + " : ");
+                System.out.println("-".repeat(positions[j]));
+            }
+            System.out.println();
+        }
+    }
+
+    public void printWinners() {
+        int max = 0;
+
+        for (int i = 0; i < positions.length; i++) {
+            if (positions[i] > max) {
+                max = positions[i];
+            }
+        }
+
+        System.out.print("최종 우승자 : ");
+        boolean first = true;
+
+        for (int i = 0; i < positions.length; i++) {
+            if (positions[i] == max) {
+                if (!first) {
+                    System.out.print(", ");
+                }
+                System.out.print(cars[i]);
+                first = false;
+            }
+        }
+
+        System.out.println();
+    }
+}