feat(main): structure cli based car game

README.md

@@ -1 +1,4 @@
-# java-racingcar-precourse
+# java-racingcar-precourse
+
+자동차 생성 시 validation (5자 이하)
+게임 시작 시 시도 회수 입력 값에 대한 validation(IllegalArgumentException)

src/main/java/Car.java

@@ -0,0 +1,25 @@
+import java.util.Random;
+
+public class Car {
+    private final String name;
+    private int distance;
+    private final Random rand;
+
+    public Car(String name,Random random) {
+        this.name = name;
+        this.rand = random;
+    }
+    public void run(){
+        if(rand.nextInt(9)>=4){
+            distance++;
+        }
+    }
+    public void printStatus(){
+        System.out.print(name+" : ");
+        for(int i=0; i<distance; i++){
+            System.out.print("- ");
+        }
+        System.out.println();
+    }
+
+}

src/main/java/Game.java

@@ -0,0 +1,79 @@
+import java.util.NoSuchElementException;
+import java.util.Random;
+import java.util.Scanner;
+
+public class Game {
+    private Scanner sc = new Scanner(System.in);
+    private final Random rand = new Random(System.currentTimeMillis());
+    private Car[] cars;
+    private int tryCnt = -1;
+
+    public static void main(String[] args) {
+        Game game = new Game();
+        game.createCars();
+        game.getTryOutNumber();
+        System.out.println("실행결과");
+        game.playGame();
+
+    }
+
+    public void playGame() {
+        for (int i = 0; i < tryCnt; i++) {
+            for (Car car : cars) {
+                car.run();
+            }
+            printResult();
+        }
+    }
+
+    private void printResult() {
+        for (Car car : cars) {
+            car.printStatus();
+        }
+        System.out.println();
+    }
+
+    public String[] getListOfCars() {
+        String[] carList = sc.nextLine().split(",");
+        try {
+            validateCarListInput(carList);
+        } catch (IllegalArgumentException e) {
+            carList = getListOfCars();
+        }
+        return carList;
+    }
+
+    private void validateCarListInput(String[] carNames) {
+        for (String carName : carNames) {
+            if (carName.trim().length() > 5) {
+                System.out.println("[ERROR] 자동차명은 5자를 초과할 수 없습니다");
+                throw new IllegalArgumentException();
+            }
+        }
+    }
+
+    public void getTryOutNumber() {
+        System.out.println("시도할 회수는 몇회인가요?");
+        try {
+            tryCnt = sc.nextInt();
+            sc.nextLine();
+        } catch (NoSuchElementException e) {
+            System.out.println("[ERROR] 숫자를 입력해주세요");
+            sc = new Scanner(System.in);
+            getTryOutNumber();
+        }
+        if (tryCnt < 0) {
+            System.out.println("[ERROR] 시도 회수는 양수여야 합니다");
+            getTryOutNumber();
+        }
+    }
+
+    public void createCars() {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        String[] carNames = getListOfCars();
+        cars = new Car[carNames.length];
+        for (int i = 0; i < carNames.length; i++) {
+            cars[i] = new Car(carNames[i].trim(), rand);
+        }
+    }
+}