From 35a2bdc34708884eabd711d7db987de5c085d500 Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Tue, 10 Sep 2024 18:21:36 +0900
Subject: [PATCH 1/7] =?UTF-8?q?feat=20:=20=EC=9E=90=EB=8F=99=EC=B0=A8=5F?=
 =?UTF-8?q?=EC=9D=B4=EB=A6=84=5F=EC=9C=A0=ED=9A=A8=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md                                     | 29 +++----------------
 .../racingcarGameTest/utils/Validation.java   |  7 +++++
 .../ValidationUtilsTest.java                  | 16 ++++++++++
 3 files changed, 27 insertions(+), 25 deletions(-)
 create mode 100644 src/main/java/racingcarGameTest/utils/Validation.java
 create mode 100644 src/test/java/racingcarGameTest/ValidationUtilsTest.java

diff --git a/README.md b/README.md
index 8fe711203..9036163bb 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,5 @@
-## [NEXTSTEP 플레이그라운드의 미션 진행 과정](https://github.com/next-step/nextstep-docs/blob/master/playground/README.md)
+자동차 클래스, 
+----
+## 1. 자동차 이름 유효성
 
----
-## 학습 효과를 높이기 위해 추천하는 미션 진행 방법
-
----
-1. 피드백 강의 전까지 미션 진행 
-> 피드백 강의 전까지 혼자 힘으로 미션 진행. 미션을 진행하면서 하나의 작업이 끝날 때 마다 add, commit
-> 예를 들어 다음 숫자 야구 게임의 경우 0, 1, 2단계까지 구현을 완료한 후 push
-
-![mission baseball](https://raw.githubusercontent.com/next-step/nextstep-docs/master/playground/images/mission_baseball.png)
-
----
-2. 피드백 앞 단계까지 미션 구현을 완료한 후 피드백 강의를 학습한다.
-
----
-3. Git 브랜치를 master 또는 main으로 변경한 후 피드백을 반영하기 위한 새로운 브랜치를 생성한 후 처음부터 다시 미션 구현을 도전한다.
-
-```
-git branch -a // 모든 로컬 브랜치 확인
-git checkout master // 기본 브랜치가 master인 경우
-git checkout main // 기본 브랜치가 main인 경우
-
-git checkout -b 브랜치이름
-ex) git checkout -b apply-feedback
-```
+## 2. 
diff --git a/src/main/java/racingcarGameTest/utils/Validation.java b/src/main/java/racingcarGameTest/utils/Validation.java
new file mode 100644
index 000000000..34909b3d9
--- /dev/null
+++ b/src/main/java/racingcarGameTest/utils/Validation.java
@@ -0,0 +1,7 @@
+package racingcarGameTest.utils;
+
+public class Validation {
+    public static boolean carNameValidator(String carName) {
+        return carName.length() <= 5;
+    }
+}
diff --git a/src/test/java/racingcarGameTest/ValidationUtilsTest.java b/src/test/java/racingcarGameTest/ValidationUtilsTest.java
new file mode 100644
index 000000000..3d5eb71c5
--- /dev/null
+++ b/src/test/java/racingcarGameTest/ValidationUtilsTest.java
@@ -0,0 +1,16 @@
+package racingcarGameTest;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+import racingcarGameTest.utils.Validation;
+
+public class ValidationUtilsTest {
+
+    @Test
+    void 자동차_이름_유효성() {
+        String name = "carname";
+        Assertions.assertThat(Validation.carNameValidator(name))
+                .isEqualTo(false);
+    }
+
+}

From bc9cd19579f7e889020419ce7f08df221ebd0d27 Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Tue, 10 Sep 2024 18:44:44 +0900
Subject: [PATCH 2/7] =?UTF-8?q?feat:=20=EC=9E=90=EB=8F=99=EC=B0=A8=5F1?=
 =?UTF-8?q?=EA=B0=9C=5F=ED=81=B4=EB=9E=98=EC=8A=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md                                     |  6 ++++-
 src/main/java/racingcarGame/Car.java          | 22 ++++++++++++++++
 .../utils/Validation.java                     |  2 +-
 src/test/java/racingcarGame/CarTest.java      | 25 +++++++++++++++++++
 src/test/java/racingcarGame/MoveTest.java     |  4 +++
 .../ValidationUtilsTest.java                  |  6 +++--
 6 files changed, 61 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/racingcarGame/Car.java
 rename src/main/java/{racingcarGameTest => racingcarGame}/utils/Validation.java (80%)
 create mode 100644 src/test/java/racingcarGame/CarTest.java
 create mode 100644 src/test/java/racingcarGame/MoveTest.java
 rename src/test/java/{racingcarGameTest => racingcarGame}/ValidationUtilsTest.java (81%)

diff --git a/README.md b/README.md
index 9036163bb..f2e117321 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,8 @@
 ----
 ## 1. 자동차 이름 유효성
 
-## 2. 
+## 2. 자동차 1개 클래스
+
+## 3. 자동차 클래스에 race 메소드 or Race 메소드
+동작과 데이터를 완전 분리 + 일급 컬렉션 List<car> -> Cars
+후자로 해보자.
diff --git a/src/main/java/racingcarGame/Car.java b/src/main/java/racingcarGame/Car.java
new file mode 100644
index 000000000..aba99fae3
--- /dev/null
+++ b/src/main/java/racingcarGame/Car.java
@@ -0,0 +1,22 @@
+package racingcarGame;
+
+public class Car {
+    public String getName() {
+        return name;
+    }
+
+    public int getLocation() {
+        return location;
+    }
+
+    String name;
+    int location;
+
+    Car(String name) {
+        if (name.length() > 5) {
+            throw new IllegalArgumentException();
+        }
+        this.name = name;
+        this.location = 0;
+    }
+}
diff --git a/src/main/java/racingcarGameTest/utils/Validation.java b/src/main/java/racingcarGame/utils/Validation.java
similarity index 80%
rename from src/main/java/racingcarGameTest/utils/Validation.java
rename to src/main/java/racingcarGame/utils/Validation.java
index 34909b3d9..3ef14a13c 100644
--- a/src/main/java/racingcarGameTest/utils/Validation.java
+++ b/src/main/java/racingcarGame/utils/Validation.java
@@ -1,4 +1,4 @@
-package racingcarGameTest.utils;
+package racingcarGame.utils;
 
 public class Validation {
     public static boolean carNameValidator(String carName) {
diff --git a/src/test/java/racingcarGame/CarTest.java b/src/test/java/racingcarGame/CarTest.java
new file mode 100644
index 000000000..975d69fa1
--- /dev/null
+++ b/src/test/java/racingcarGame/CarTest.java
@@ -0,0 +1,25 @@
+package racingcarGame;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class CarTest {
+
+    @Test
+    void 차_1개_생성_테스트() throws Exception {
+        Car car1 = new Car("hhj12");
+        assertThat(car1).isNotEqualTo(null);
+        assertThat(car1.getLocation()).isEqualTo(0);
+        assertThat(car1.getName()).isEqualTo("hhj12");
+    }
+
+    @Test
+    void 차_1개_생성_이름_유효성_테스트() throws Exception {
+        assertThatThrownBy(()->{
+            Car car2 = new Car("heehun");
+        }).isInstanceOf(IllegalArgumentException.class);
+    }
+
+
+}
diff --git a/src/test/java/racingcarGame/MoveTest.java b/src/test/java/racingcarGame/MoveTest.java
new file mode 100644
index 000000000..ddcb9a28a
--- /dev/null
+++ b/src/test/java/racingcarGame/MoveTest.java
@@ -0,0 +1,4 @@
+package racingcarGame;
+
+public class MoveTest {
+}
diff --git a/src/test/java/racingcarGameTest/ValidationUtilsTest.java b/src/test/java/racingcarGame/ValidationUtilsTest.java
similarity index 81%
rename from src/test/java/racingcarGameTest/ValidationUtilsTest.java
rename to src/test/java/racingcarGame/ValidationUtilsTest.java
index 3d5eb71c5..f6b50df67 100644
--- a/src/test/java/racingcarGameTest/ValidationUtilsTest.java
+++ b/src/test/java/racingcarGame/ValidationUtilsTest.java
@@ -1,8 +1,8 @@
-package racingcarGameTest;
+package racingcarGame;
 
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
-import racingcarGameTest.utils.Validation;
+import racingcarGame.utils.Validation;
 
 public class ValidationUtilsTest {
 
@@ -13,4 +13,6 @@ public class ValidationUtilsTest {
                 .isEqualTo(false);
     }
 
+
+
 }

From c104374baaaf4a783de13612421db788700073aa Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Tue, 10 Sep 2024 19:12:52 +0900
Subject: [PATCH 3/7] feat: input split

---
 README.md                                     |  5 ++++-
 src/main/java/racingcarGame/Race.java         | 22 +++++++++++++++++++
 .../java/racingcarGame/utils/SplitNames.java  |  7 ++++++
 src/test/java/racingcarGame/MoveTest.java     |  4 ----
 src/test/java/racingcarGame/RaceTest.java     | 17 ++++++++++++++
 .../java/racingcarGame/splitUtilsTest.java    | 18 +++++++++++++++
 6 files changed, 68 insertions(+), 5 deletions(-)
 create mode 100644 src/main/java/racingcarGame/Race.java
 create mode 100644 src/main/java/racingcarGame/utils/SplitNames.java
 delete mode 100644 src/test/java/racingcarGame/MoveTest.java
 create mode 100644 src/test/java/racingcarGame/RaceTest.java
 create mode 100644 src/test/java/racingcarGame/splitUtilsTest.java

diff --git a/README.md b/README.md
index f2e117321..ef4b412e9 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,8 @@
 ## 2. 자동차 1개 클래스
 
 ## 3. 자동차 클래스에 race 메소드 or Race 메소드
-동작과 데이터를 완전 분리 + 일급 컬렉션 List<car> -> Cars
+작과 데이터를 완전 분리 + 일급 컬렉션 List<car> -> Cars
 후자로 해보자.
+3-1. race 메소드 할 때 Race 클래스의 멤버 변수인 Car에 접근해야하는데,
+해당 메소드가 public 이면 setter써서 하는게 좋나 ?
+
diff --git a/src/main/java/racingcarGame/Race.java b/src/main/java/racingcarGame/Race.java
new file mode 100644
index 000000000..a912ed495
--- /dev/null
+++ b/src/main/java/racingcarGame/Race.java
@@ -0,0 +1,22 @@
+package racingcarGame;
+
+public class Race {
+
+    public Car getCar() {
+        return car;
+    }
+
+    private final Car car;
+
+    public Race(Car car) {
+        this.car = car;
+    }
+
+    public Car race() {
+        Car car = getCar();
+        car.location += 1;
+        return car;
+    }
+
+
+}
diff --git a/src/main/java/racingcarGame/utils/SplitNames.java b/src/main/java/racingcarGame/utils/SplitNames.java
new file mode 100644
index 000000000..15f9b5c4c
--- /dev/null
+++ b/src/main/java/racingcarGame/utils/SplitNames.java
@@ -0,0 +1,7 @@
+package racingcarGame.utils;
+
+public class SplitNames {
+    public static String[] splitName(String input) {
+        return input.split(",");
+    }
+}
diff --git a/src/test/java/racingcarGame/MoveTest.java b/src/test/java/racingcarGame/MoveTest.java
deleted file mode 100644
index ddcb9a28a..000000000
--- a/src/test/java/racingcarGame/MoveTest.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package racingcarGame;
-
-public class MoveTest {
-}
diff --git a/src/test/java/racingcarGame/RaceTest.java b/src/test/java/racingcarGame/RaceTest.java
new file mode 100644
index 000000000..1ecdb2346
--- /dev/null
+++ b/src/test/java/racingcarGame/RaceTest.java
@@ -0,0 +1,17 @@
+package racingcarGame;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class RaceTest {
+
+    @Test
+    void 차_1대_move_테스트() {
+        Car car1 = new Car("hhj");
+        Race race = new Race(car1);
+        race.race();
+        assertThat(car1.getLocation()).isEqualTo(1);
+    }
+}
diff --git a/src/test/java/racingcarGame/splitUtilsTest.java b/src/test/java/racingcarGame/splitUtilsTest.java
new file mode 100644
index 000000000..4250f40bf
--- /dev/null
+++ b/src/test/java/racingcarGame/splitUtilsTest.java
@@ -0,0 +1,18 @@
+package racingcarGame;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+import racingcarGame.utils.SplitNames;
+
+import java.util.Arrays;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class splitUtilsTest {
+
+    @Test
+    void 입력_쉼표_구분자() {
+        String input = "hhj,hhj2,hhj3";
+        assertThat(SplitNames.splitName(input)).isEqualTo(new String[] { "hhj", "hhj2", "hhj3" });
+    }
+}

From 85da880d783b7ed5dadc0863877b95b14a2397cc Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Tue, 10 Sep 2024 21:12:06 +0900
Subject: [PATCH 4/7] =?UTF-8?q?feat:=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84=20=EC=99=84=EB=A3=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md                                     |  3 +
 src/main/java/racingcarGame/Application.java  | 43 ++++++++++++++
 src/main/java/racingcarGame/Car.java          | 11 +++-
 src/main/java/racingcarGame/Cars.java         | 24 ++++++++
 src/main/java/racingcarGame/Race.java         | 56 +++++++++++++++----
 src/main/java/racingcarGame/UserInput.java    | 18 ++++++
 .../racingcarGame/utils/GenerateNumber.java   | 10 ++++
 .../java/racingcarGame/utils/Validation.java  |  2 +
 .../java/racingcarGame/views/InputView.java   | 18 ++++++
 .../java/racingcarGame/views/ResultView.java  | 40 +++++++++++++
 src/test/java/racingcarGame/CarTest.java      |  6 ++
 src/test/java/racingcarGame/CarsTest.java     | 24 ++++++++
 src/test/java/racingcarGame/RaceTest.java     | 25 ++++++++-
 .../java/racingcarGame/splitUtilsTest.java    |  4 +-
 14 files changed, 266 insertions(+), 18 deletions(-)
 create mode 100644 src/main/java/racingcarGame/Application.java
 create mode 100644 src/main/java/racingcarGame/Cars.java
 create mode 100644 src/main/java/racingcarGame/UserInput.java
 create mode 100644 src/main/java/racingcarGame/utils/GenerateNumber.java
 create mode 100644 src/main/java/racingcarGame/views/InputView.java
 create mode 100644 src/main/java/racingcarGame/views/ResultView.java
 create mode 100644 src/test/java/racingcarGame/CarsTest.java

diff --git a/README.md b/README.md
index ef4b412e9..7cc439196 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,6 @@
 3-1. race 메소드 할 때 Race 클래스의 멤버 변수인 Car에 접근해야하는데,
 해당 메소드가 public 이면 setter써서 하는게 좋나 ?
 
+## 4. 자동차 여러대 클래스
+
+## 5. 사용자 input 문자열 포장
\ No newline at end of file
diff --git a/src/main/java/racingcarGame/Application.java b/src/main/java/racingcarGame/Application.java
new file mode 100644
index 000000000..4c5474f5f
--- /dev/null
+++ b/src/main/java/racingcarGame/Application.java
@@ -0,0 +1,43 @@
+package racingcarGame;
+
+import racingcarGame.views.InputView;
+import racingcarGame.views.ResultView;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+import static racingcarGame.utils.SplitNames.splitName;
+
+public class Application {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        String input = InputView.name(scanner);
+        int times = InputView.number(scanner);
+
+        UserInput userInput = new UserInput(input, times);
+
+        String[] carNames = splitName(input);
+        List<Car> carList = new ArrayList<>();
+
+        for (String carName : carNames) {
+            Car car = new Car(carName);
+            carList.add(car);
+        }
+
+        Cars cars = new Cars(carList);
+        Race race = new Race(cars);
+
+        ResultView.result();
+
+        for (int i = 0; i < userInput.getTimes(); i++) {
+            race.race();
+            ResultView.racingResult(cars);
+            System.out.println();
+        }
+
+        int farLocation = race.farLocation();
+        Cars winner = race.winner(farLocation);
+        ResultView.winner(winner);
+    }
+}
diff --git a/src/main/java/racingcarGame/Car.java b/src/main/java/racingcarGame/Car.java
index aba99fae3..e6c4da01c 100644
--- a/src/main/java/racingcarGame/Car.java
+++ b/src/main/java/racingcarGame/Car.java
@@ -1,6 +1,9 @@
 package racingcarGame;
 
 public class Car {
+    private final String name;
+    private int location;
+
     public String getName() {
         return name;
     }
@@ -9,9 +12,6 @@ public int getLocation() {
         return location;
     }
 
-    String name;
-    int location;
-
     Car(String name) {
         if (name.length() > 5) {
             throw new IllegalArgumentException();
@@ -19,4 +19,9 @@ public int getLocation() {
         this.name = name;
         this.location = 0;
     }
+
+    public void move(int rand) {
+        if (rand >= 4 )
+            this.location += 1;
+    }
 }
diff --git a/src/main/java/racingcarGame/Cars.java b/src/main/java/racingcarGame/Cars.java
new file mode 100644
index 000000000..f5059313c
--- /dev/null
+++ b/src/main/java/racingcarGame/Cars.java
@@ -0,0 +1,24 @@
+package racingcarGame;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Cars {
+
+    private final List<Car> cars;
+
+    public List<Car> getCars() {
+        return cars;
+    }
+    public Cars(List<Car> carList) {
+        this.cars = carList;
+    }
+    public List<Integer> getLocations() {
+        List<Car> carList = getCars();
+        List<Integer> locations = new ArrayList<>();
+        for (Car car : carList) {
+            locations.add(car.getLocation());
+        }
+        return locations;
+    }
+}
diff --git a/src/main/java/racingcarGame/Race.java b/src/main/java/racingcarGame/Race.java
index a912ed495..26bf9d5f9 100644
--- a/src/main/java/racingcarGame/Race.java
+++ b/src/main/java/racingcarGame/Race.java
@@ -1,22 +1,58 @@
 package racingcarGame;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static racingcarGame.utils.GenerateNumber.generateNumber;
+
 public class Race {
 
-    public Car getCar() {
-        return car;
-    }
+    private final Cars cars;
 
-    private final Car car;
+    public Race(Cars car) {
+        this.cars = car;
+    }
 
-    public Race(Car car) {
-        this.car = car;
+    public void race() {
+        Cars cars = getCars();
+        for(Car car: cars.getCars()){
+            int rand = generateNumber();
+            car.move(rand);
+        }
     }
 
-    public Car race() {
-        Car car = getCar();
-        car.location += 1;
-        return car;
+    public Cars winner(int farLocation) {
+        Cars cars = getCars();
+        List<Car> carsList = new ArrayList<>();
+        for(Car car: cars.getCars()){
+            Optional<Car> result = Optional.ofNullable(compareFarLocation(farLocation, car));
+            result.ifPresent(carsList::add);
+        }
+        return new Cars(carsList);
     }
 
 
+
+    public int farLocation() {
+        int far = 0;
+        for(Car car: cars.getCars()){
+            far = compareLocation(far, car);
+        }
+        return far;
+    }
+
+    private static int compareLocation(int location,Car car){
+        return Math.max(car.getLocation(), location);
+    }
+    private static Car compareFarLocation(int farLocation,Car car){
+        if(car.getLocation() == farLocation){
+            return car;
+        }
+        return null;
+    }
+    public Cars getCars() {
+        return cars;
+    }
 }
+
diff --git a/src/main/java/racingcarGame/UserInput.java b/src/main/java/racingcarGame/UserInput.java
new file mode 100644
index 000000000..0acfa8b59
--- /dev/null
+++ b/src/main/java/racingcarGame/UserInput.java
@@ -0,0 +1,18 @@
+package racingcarGame;
+
+public class UserInput {
+    private final String inputName;
+    private final int times;
+
+    UserInput(String inputName,int times) {
+        this.inputName = inputName;
+        this.times = times;
+    }
+
+    public String getInput() {
+        return inputName;
+    }
+    public int getTimes() {
+        return times;
+    }
+}
diff --git a/src/main/java/racingcarGame/utils/GenerateNumber.java b/src/main/java/racingcarGame/utils/GenerateNumber.java
new file mode 100644
index 000000000..7b8aea1ee
--- /dev/null
+++ b/src/main/java/racingcarGame/utils/GenerateNumber.java
@@ -0,0 +1,10 @@
+package racingcarGame.utils;
+
+import java.util.Random;
+
+public class GenerateNumber {
+    public static int generateNumber() {
+        Random rand = new Random();
+        return rand.nextInt(10);
+    }
+}
diff --git a/src/main/java/racingcarGame/utils/Validation.java b/src/main/java/racingcarGame/utils/Validation.java
index 3ef14a13c..02bf9941b 100644
--- a/src/main/java/racingcarGame/utils/Validation.java
+++ b/src/main/java/racingcarGame/utils/Validation.java
@@ -1,5 +1,7 @@
 package racingcarGame.utils;
 
+
+// Car 객체 생성자 만들면서 필요 없어짐
 public class Validation {
     public static boolean carNameValidator(String carName) {
         return carName.length() <= 5;
diff --git a/src/main/java/racingcarGame/views/InputView.java b/src/main/java/racingcarGame/views/InputView.java
new file mode 100644
index 000000000..4a6e5c6f0
--- /dev/null
+++ b/src/main/java/racingcarGame/views/InputView.java
@@ -0,0 +1,18 @@
+package racingcarGame.views;
+
+import java.util.Scanner;
+
+public class InputView {
+    static String nameInput = "경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분)";
+    static String timesInput = "시도할 회수는 몇회인가요?";
+
+    public static String name(Scanner scanner) {
+        System.out.println(nameInput);
+        return scanner.nextLine();
+    }
+
+    public static int number(Scanner scanner) {
+        System.out.println(timesInput);
+        return scanner.nextInt();
+    }
+}
diff --git a/src/main/java/racingcarGame/views/ResultView.java b/src/main/java/racingcarGame/views/ResultView.java
new file mode 100644
index 000000000..04bb47011
--- /dev/null
+++ b/src/main/java/racingcarGame/views/ResultView.java
@@ -0,0 +1,40 @@
+package racingcarGame.views;
+
+import racingcarGame.Car;
+import racingcarGame.Cars;
+
+import java.util.List;
+
+public class ResultView {
+    static String resultView = "실행결과";
+    static String winningMention = "가 최종 우승했습니다.";
+
+    public static void result() {
+        System.out.println(resultView);
+    }
+
+    public static void racingResult(Cars cars){
+        for (Car car : cars.getCars()) {
+            System.out.print(car.getName()+" : ");
+            locationResult(car);
+            System.out.println();
+        }
+    }
+
+    private static void locationResult(Car car) {
+        int location = car.getLocation();
+        for (int i = 0 ; i < location ; i++){
+            System.out.print("-");
+        }
+    }
+
+    public static void winner(Cars cars) {
+        List<Car> carList = cars.getCars();
+        System.out.print(carList.get(0).getName());
+        int size = carList.size();
+        for (int i = 1; i < size; i++){
+            System.out.print(", "+carList.get(i).getName());
+        }
+        System.out.println(winningMention);
+    }
+}
diff --git a/src/test/java/racingcarGame/CarTest.java b/src/test/java/racingcarGame/CarTest.java
index 975d69fa1..4b59057b7 100644
--- a/src/test/java/racingcarGame/CarTest.java
+++ b/src/test/java/racingcarGame/CarTest.java
@@ -21,5 +21,11 @@ public class CarTest {
         }).isInstanceOf(IllegalArgumentException.class);
     }
 
+    @Test
+    void 차_1대_이동(){
+        Car car1 = new Car("hhj12");
+        car1.move(5);
+        assertThat(car1.getLocation()).isEqualTo(1);
+    }
 
 }
diff --git a/src/test/java/racingcarGame/CarsTest.java b/src/test/java/racingcarGame/CarsTest.java
new file mode 100644
index 000000000..d3b554fc3
--- /dev/null
+++ b/src/test/java/racingcarGame/CarsTest.java
@@ -0,0 +1,24 @@
+package racingcarGame;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class CarsTest {
+
+    @Test
+    void 차_여러대_생성(){
+        Car car1 = new Car("hhj");
+        Car car2 = new Car("hhj2");
+        Car car3 = new Car("hhj3");
+        Car car4 = new Car("hhj4");
+
+        List<Car> car_list = Arrays.asList(car1,car2,car3,car4);
+
+        Cars cars = new Cars(car_list);
+
+        Assertions.assertThat(cars).isNotEqualTo(null);
+    }
+}
diff --git a/src/test/java/racingcarGame/RaceTest.java b/src/test/java/racingcarGame/RaceTest.java
index 1ecdb2346..2fce4fa50 100644
--- a/src/test/java/racingcarGame/RaceTest.java
+++ b/src/test/java/racingcarGame/RaceTest.java
@@ -3,15 +3,34 @@
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import java.util.Arrays;
+import java.util.List;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class RaceTest {
 
+//    @Test
+//    void 차_1대_move_테스트() {
+//        Car car1 = new Car("hhj");
+//        Race race = new Race(car1);
+//        race.race();
+//        assertThat(car1.getLocation()).isEqualTo(1);
+//    }
+
+
     @Test
-    void 차_1대_move_테스트() {
+    void 차_여러대_move_테스트() {
         Car car1 = new Car("hhj");
-        Race race = new Race(car1);
+        Car car2 = new Car("hhj2");
+        Car car3 = new Car("hhj3");
+        Car car4 = new Car("hhj4");
+
+        List<Car> car_list = Arrays.asList(car1,car2,car3,car4);
+
+        Cars cars = new Cars(car_list);
+        Race race = new Race(cars);
         race.race();
-        assertThat(car1.getLocation()).isEqualTo(1);
+        assertThat(cars.getLocations()).isNotEqualTo(Arrays.asList(1,1,1,1));
     }
 }
diff --git a/src/test/java/racingcarGame/splitUtilsTest.java b/src/test/java/racingcarGame/splitUtilsTest.java
index 4250f40bf..ca185f20d 100644
--- a/src/test/java/racingcarGame/splitUtilsTest.java
+++ b/src/test/java/racingcarGame/splitUtilsTest.java
@@ -12,7 +12,7 @@ public class splitUtilsTest {
 
     @Test
     void 입력_쉼표_구분자() {
-        String input = "hhj,hhj2,hhj3";
-        assertThat(SplitNames.splitName(input)).isEqualTo(new String[] { "hhj", "hhj2", "hhj3" });
+        UserInput input = new UserInput("hhj,hhj2,hhj3",5);
+        assertThat(SplitNames.splitName(input.getInput())).isEqualTo(new String[] { "hhj", "hhj2", "hhj3" });
     }
 }

From 46f50ace7082af759487e6da2f29edd2c448f1da Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Tue, 10 Sep 2024 21:13:26 +0900
Subject: [PATCH 5/7] think

---
 README.md | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7cc439196..e4b9b05b2 100644
--- a/README.md
+++ b/README.md
@@ -12,4 +12,9 @@
 
 ## 4. 자동차 여러대 클래스
 
-## 5. 사용자 input 문자열 포장
\ No newline at end of file
+## 5. 사용자 input 문자열 포장
+
+------------------
+우승자들을 cars에 넣는게 맞을까?
+그냥 racing 내부에서 우승자만 반환 해주는게 맞나 ?
+고민..
\ No newline at end of file

From 3a780ae510d14b285e0d08c69b993b26737e06a2 Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Thu, 12 Sep 2024 15:08:43 +0900
Subject: [PATCH 6/7] checkout

---
 src/main/java/racingcarGame/Race.java | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/main/java/racingcarGame/Race.java b/src/main/java/racingcarGame/Race.java
index 26bf9d5f9..449b430a8 100644
--- a/src/main/java/racingcarGame/Race.java
+++ b/src/main/java/racingcarGame/Race.java
@@ -13,7 +13,6 @@ public class Race {
     public Race(Cars car) {
         this.cars = car;
     }
-
     public void race() {
         Cars cars = getCars();
         for(Car car: cars.getCars()){
@@ -21,7 +20,6 @@ public void race() {
             car.move(rand);
         }
     }
-
     public Cars winner(int farLocation) {
         Cars cars = getCars();
         List<Car> carsList = new ArrayList<>();
@@ -31,9 +29,6 @@ public Cars winner(int farLocation) {
         }
         return new Cars(carsList);
     }
-
-
-
     public int farLocation() {
         int far = 0;
         for(Car car: cars.getCars()){
@@ -41,7 +36,6 @@ public int farLocation() {
         }
         return far;
     }
-
     private static int compareLocation(int location,Car car){
         return Math.max(car.getLocation(), location);
     }

From 8d7f2caa944d8ebb0354cb6c0f71cf0112e0738c Mon Sep 17 00:00:00 2001
From: heehun <slrkqk2@naver.com>
Date: Thu, 12 Sep 2024 20:58:11 +0900
Subject: [PATCH 7/7] =?UTF-8?q?=EC=9B=90=EC=8B=9C=EA=B0=92=20=ED=8F=AC?=
 =?UTF-8?q?=EC=9E=A5=20=EC=97=B0=EC=8A=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/racingcarGame/Application.java  |  3 ++
 src/main/java/racingcarGame/Car.java          | 27 ------------
 src/main/java/racingcarGame/domain/Car.java   | 42 +++++++++++++++++++
 .../java/racingcarGame/{ => domain}/Cars.java |  2 +-
 .../racingcarGame/domain/MovingStrategy.java  |  6 +++
 .../java/racingcarGame/domain/Position.java   | 22 ++++++++++
 .../java/racingcarGame/{ => domain}/Race.java |  2 +-
 .../domain/RandomMovingImpl.java              | 18 ++++++++
 .../java/racingcarGame/views/ResultView.java  |  4 +-
 src/test/java/racingcarGame/CarTest.java      |  1 +
 src/test/java/racingcarGame/CarsTest.java     |  2 +
 src/test/java/racingcarGame/LocationTest.java | 22 ++++++++++
 src/test/java/racingcarGame/RaceTest.java     |  4 +-
 13 files changed, 123 insertions(+), 32 deletions(-)
 delete mode 100644 src/main/java/racingcarGame/Car.java
 create mode 100644 src/main/java/racingcarGame/domain/Car.java
 rename src/main/java/racingcarGame/{ => domain}/Cars.java (94%)
 create mode 100644 src/main/java/racingcarGame/domain/MovingStrategy.java
 create mode 100644 src/main/java/racingcarGame/domain/Position.java
 rename src/main/java/racingcarGame/{ => domain}/Race.java (97%)
 create mode 100644 src/main/java/racingcarGame/domain/RandomMovingImpl.java
 create mode 100644 src/test/java/racingcarGame/LocationTest.java

diff --git a/src/main/java/racingcarGame/Application.java b/src/main/java/racingcarGame/Application.java
index 4c5474f5f..6c08e7f4c 100644
--- a/src/main/java/racingcarGame/Application.java
+++ b/src/main/java/racingcarGame/Application.java
@@ -1,5 +1,8 @@
 package racingcarGame;
 
+import racingcarGame.domain.Car;
+import racingcarGame.domain.Cars;
+import racingcarGame.domain.Race;
 import racingcarGame.views.InputView;
 import racingcarGame.views.ResultView;
 
diff --git a/src/main/java/racingcarGame/Car.java b/src/main/java/racingcarGame/Car.java
deleted file mode 100644
index e6c4da01c..000000000
--- a/src/main/java/racingcarGame/Car.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package racingcarGame;
-
-public class Car {
-    private final String name;
-    private int location;
-
-    public String getName() {
-        return name;
-    }
-
-    public int getLocation() {
-        return location;
-    }
-
-    Car(String name) {
-        if (name.length() > 5) {
-            throw new IllegalArgumentException();
-        }
-        this.name = name;
-        this.location = 0;
-    }
-
-    public void move(int rand) {
-        if (rand >= 4 )
-            this.location += 1;
-    }
-}
diff --git a/src/main/java/racingcarGame/domain/Car.java b/src/main/java/racingcarGame/domain/Car.java
new file mode 100644
index 000000000..d490b54d8
--- /dev/null
+++ b/src/main/java/racingcarGame/domain/Car.java
@@ -0,0 +1,42 @@
+package racingcarGame.domain;
+
+public class Car {
+    private final String name;
+    private int location;
+    private Position position;
+
+    public String getName() {
+        return name;
+    }
+
+    public int getLocation() {
+        return location;
+    }
+
+    Car(String name) {
+        if (name.length() > 5) {
+            throw new IllegalArgumentException();
+        }
+        this.name = name;
+        this.location = 0;
+        this.position = new Position();
+    }
+
+    public void move(int rand) {
+        if (rand >= 4 )
+            this.location += 1;
+    }
+
+
+    // move 전력이 바뀌는 것을 대비한 추상화
+    public void move(MovingStrategy movingStrategy) {
+        //여기만 보면 구현체 뭔지 모르는데
+        //애플리케이션 코드에 이 메서드 사용할 때 구현체를 넣어주지
+        if (movingStrategy.movable()){
+            this.location += 1;
+            position.move();
+
+        }
+    }
+
+}
diff --git a/src/main/java/racingcarGame/Cars.java b/src/main/java/racingcarGame/domain/Cars.java
similarity index 94%
rename from src/main/java/racingcarGame/Cars.java
rename to src/main/java/racingcarGame/domain/Cars.java
index f5059313c..9dc9b46f8 100644
--- a/src/main/java/racingcarGame/Cars.java
+++ b/src/main/java/racingcarGame/domain/Cars.java
@@ -1,4 +1,4 @@
-package racingcarGame;
+package racingcarGame.domain;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/racingcarGame/domain/MovingStrategy.java b/src/main/java/racingcarGame/domain/MovingStrategy.java
new file mode 100644
index 000000000..9db9d6286
--- /dev/null
+++ b/src/main/java/racingcarGame/domain/MovingStrategy.java
@@ -0,0 +1,6 @@
+package racingcarGame.domain;
+
+public interface MovingStrategy {
+
+    boolean movable();
+}
diff --git a/src/main/java/racingcarGame/domain/Position.java b/src/main/java/racingcarGame/domain/Position.java
new file mode 100644
index 000000000..cb4a96877
--- /dev/null
+++ b/src/main/java/racingcarGame/domain/Position.java
@@ -0,0 +1,22 @@
+package racingcarGame.domain;
+
+public class Position {
+    private int position;
+    public Position(int i) {
+        if (i < 0) {
+            throw new IllegalArgumentException("Position cannot be less than 0");
+        }
+        this.position = i;
+    }
+
+    public Position() {
+        this.position = 0;
+    }
+    public int getPosition() {
+        return this.position;
+    }
+
+    public void move() {
+        this.position += 1;
+    }
+}
diff --git a/src/main/java/racingcarGame/Race.java b/src/main/java/racingcarGame/domain/Race.java
similarity index 97%
rename from src/main/java/racingcarGame/Race.java
rename to src/main/java/racingcarGame/domain/Race.java
index 449b430a8..671cd44b5 100644
--- a/src/main/java/racingcarGame/Race.java
+++ b/src/main/java/racingcarGame/domain/Race.java
@@ -1,4 +1,4 @@
-package racingcarGame;
+package racingcarGame.domain;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/racingcarGame/domain/RandomMovingImpl.java b/src/main/java/racingcarGame/domain/RandomMovingImpl.java
new file mode 100644
index 000000000..3814aea5b
--- /dev/null
+++ b/src/main/java/racingcarGame/domain/RandomMovingImpl.java
@@ -0,0 +1,18 @@
+package racingcarGame.domain;
+
+import java.util.Random;
+
+public class RandomMovingImpl implements MovingStrategy{
+    private static final int MAX_BOUND = 10;
+    private static final int FORWARD_NUM = 4;
+    @Override
+    public boolean movable() {
+        return getRandomNo() >= FORWARD_NUM;
+    }
+
+
+    private int getRandomNo() {
+        Random rand = new Random();
+        return rand.nextInt(MAX_BOUND);
+    }
+}
diff --git a/src/main/java/racingcarGame/views/ResultView.java b/src/main/java/racingcarGame/views/ResultView.java
index 04bb47011..726751c13 100644
--- a/src/main/java/racingcarGame/views/ResultView.java
+++ b/src/main/java/racingcarGame/views/ResultView.java
@@ -1,7 +1,7 @@
 package racingcarGame.views;
 
-import racingcarGame.Car;
-import racingcarGame.Cars;
+import racingcarGame.domain.Car;
+import racingcarGame.domain.Cars;
 
 import java.util.List;
 
diff --git a/src/test/java/racingcarGame/CarTest.java b/src/test/java/racingcarGame/CarTest.java
index 4b59057b7..0e2e67ca5 100644
--- a/src/test/java/racingcarGame/CarTest.java
+++ b/src/test/java/racingcarGame/CarTest.java
@@ -1,6 +1,7 @@
 package racingcarGame;
 
 import org.junit.jupiter.api.Test;
+import racingcarGame.domain.Car;
 
 import static org.assertj.core.api.Assertions.*;
 
diff --git a/src/test/java/racingcarGame/CarsTest.java b/src/test/java/racingcarGame/CarsTest.java
index d3b554fc3..b7f5e5c30 100644
--- a/src/test/java/racingcarGame/CarsTest.java
+++ b/src/test/java/racingcarGame/CarsTest.java
@@ -2,6 +2,8 @@
 
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
+import racingcarGame.domain.Car;
+import racingcarGame.domain.Cars;
 
 import java.util.Arrays;
 import java.util.List;
diff --git a/src/test/java/racingcarGame/LocationTest.java b/src/test/java/racingcarGame/LocationTest.java
new file mode 100644
index 000000000..51b19db87
--- /dev/null
+++ b/src/test/java/racingcarGame/LocationTest.java
@@ -0,0 +1,22 @@
+package racingcarGame;
+
+import org.junit.jupiter.api.Test;
+import racingcarGame.domain.Position;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class LocationTest {
+    @Test
+    void create() {
+        Position position = new Position(3);
+        assertThat(position).isNotNull();
+        assertThat(position.getPosition()).isEqualTo(3);
+
+    }
+    @Test
+    void valid() {
+        assertThatThrownBy(() -> new Position(-1))
+                .isInstanceOf(IllegalArgumentException.class);
+
+    }
+}
diff --git a/src/test/java/racingcarGame/RaceTest.java b/src/test/java/racingcarGame/RaceTest.java
index 2fce4fa50..f3521c59d 100644
--- a/src/test/java/racingcarGame/RaceTest.java
+++ b/src/test/java/racingcarGame/RaceTest.java
@@ -1,7 +1,9 @@
 package racingcarGame;
 
-import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
+import racingcarGame.domain.Car;
+import racingcarGame.domain.Cars;
+import racingcarGame.domain.Race;
 
 import java.util.Arrays;
 import java.util.List;