diff --git a/README.md b/README.md
index b853592f59..49f14c5705 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,17 @@
* 코드 리뷰 피드백에 대한 개선 작업을 하고 다시 PUSH한다.
* 모든 피드백을 완료하면 다음 단계를 도전하고 앞의 과정을 반복한다.
+## 기능 목록
+- [x] 쉼표로 구분된 참여할 사람을 입력 받는다. (단, 이름은 최대 5자까지 부여)
+- [x] 최대 사다리 높이 개수를 입력 받는다.
+- [x] 입력 받은 사람과 사다리 높이를 이용해 사다리를 출력한다.
+
+## 기능 요구 사항
+- 사다리 게임에 참여하는 사람에 이름을 최대5글자까지 부여할 수 있다. 사다리를 출력할 때 사람 이름도 같이 출력한다.
+- 사람 이름은 쉼표(,)를 기준으로 구분한다.
+- 사람 이름을 5자 기준으로 출력하기 때문에 사다리 폭도 넓어져야 한다.
+- 사다리 타기가 정상적으로 동작하려면 라인이 겹치지 않도록 해야 한다.
+ - |-----|-----| 모양과 같이 가로 라인이 겹치는 경우 어느 방향으로 이동할지 결정할 수 없다.
+
## 온라인 코드 리뷰 과정
-* [텍스트와 이미지로 살펴보는 온라인 코드 리뷰 과정](https://github.com/nextstep-step/nextstep-docs/tree/master/codereview)
\ No newline at end of file
+* [텍스트와 이미지로 살펴보는 온라인 코드 리뷰 과정](https://github.com/nextstep-step/nextstep-docs/tree/master/codereview)
diff --git a/src/main/java/ladderapplication/LadderApplication.java b/src/main/java/ladderapplication/LadderApplication.java
new file mode 100644
index 0000000000..43fae74ab6
--- /dev/null
+++ b/src/main/java/ladderapplication/LadderApplication.java
@@ -0,0 +1,16 @@
+package ladderapplication;
+
+import ladderapplication.models.Ladder;
+import ladderapplication.models.requests.GameSettingRequest;
+import ladderapplication.ui.Printer;
+
+public class LadderApplication {
+
+ public static void main(String[] args) {
+ GameSettingRequest gameSettingRequest = Printer.requestGameSetting();
+
+ Ladder ladder = Ladder.from(gameSettingRequest);
+ ladder.print();
+ }
+
+}
diff --git a/src/main/java/ladderapplication/models/Ladder.java b/src/main/java/ladderapplication/models/Ladder.java
new file mode 100644
index 0000000000..8825004bb6
--- /dev/null
+++ b/src/main/java/ladderapplication/models/Ladder.java
@@ -0,0 +1,57 @@
+package ladderapplication.models;
+
+import ladderapplication.models.requests.GameSettingRequest;
+import ladderapplication.utils.DecoratingUtils;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class Ladder {
+
+ private final List<Player> players;
+ private final List<Line> lines;
+ private final String drawing;
+
+ private Ladder(List<Player> players, List<Line> lines, String drawing) {
+ this.players = players;
+ this.lines = lines;
+ this.drawing = drawing;
+ }
+
+ public static Ladder from(GameSettingRequest gameSettingRequest) {
+ List<Player> newPlayers = gameSettingRequest.getPlayerRequests()
+ .stream()
+ .map(Player::from)
+ .collect(Collectors.toList());
+
+ int playerCount = gameSettingRequest.getPlayerRequests().size();
+ int ladderHeight = gameSettingRequest.getLadderRequest().getHeight();
+ List<Line> newLines = Stream.generate(() -> Line.of(playerCount))
+ .limit(ladderHeight)
+ .collect(Collectors.toList());
+
+ String drawing = createDrawing(newPlayers, newLines);
+ return new Ladder(newPlayers, newLines, drawing);
+ }
+
+ private static String createDrawing(List<Player> players, List<Line> lines) {
+ StringBuilder sb = new StringBuilder();
+ addPlayerNames(sb, players);
+ addLines(sb, lines);
+ return sb.toString();
+ }
+
+ private static void addPlayerNames(StringBuilder sb, List<Player> players) {
+ players.forEach(player -> sb.append(DecoratingUtils.getDecoratedName(player.getName())));
+ sb.append("\n");
+ }
+
+ private static void addLines(StringBuilder sb, List<Line> lines) {
+ lines.forEach(line -> sb.append(line.print()).append("\n"));
+ }
+
+ public void print() {
+ System.out.println(this.drawing);
+ }
+}
diff --git a/src/main/java/ladderapplication/models/Line.java b/src/main/java/ladderapplication/models/Line.java
new file mode 100644
index 0000000000..5ceb6f4fa5
--- /dev/null
+++ b/src/main/java/ladderapplication/models/Line.java
@@ -0,0 +1,57 @@
+package ladderapplication.models;
+
+import ladderapplication.utils.DecoratingUtils;
+
+import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+
+public class Line {
+ private static final Random RANDOM_GENERATOR = new Random();
+ private static final int HAS_STEP_BOUND = 4;
+ private static final int RANDOM_NUMBER_BOUND = 10;
+ private final List<Boolean> hasSteps;
+
+ private Line(List<Boolean> hasSteps) {
+ this.hasSteps = hasSteps;
+ }
+
+ public static Line of(int playerCount) {
+ List<Boolean> hasSteps = Stream.generate(() -> Boolean.FALSE)
+ .limit(playerCount - 1)
+ .collect(Collectors.toList());
+
+ IntStream.range(0, hasSteps.size())
+ .forEach(index -> setHasStep(hasSteps, index));
+
+ return new Line(hasSteps);
+ }
+
+ private static void setHasStep(List<Boolean> hasSteps, int index) {
+ if (prevLadderHasNotStep(hasSteps, index) && hasStep()) {
+ hasSteps.set(index, Boolean.TRUE);
+ }
+ }
+
+ private static boolean prevLadderHasNotStep(List<Boolean> hasSteps, int index) {
+ return index == 0 || !hasSteps.get(index - 1);
+ }
+
+ private static boolean hasStep() {
+ return RANDOM_GENERATOR.nextInt(RANDOM_NUMBER_BOUND) >= HAS_STEP_BOUND;
+ }
+
+ public String print() {
+ StringBuilder sb = new StringBuilder();
+ sb.append(" ");
+ hasSteps.forEach(hasStep -> {
+ sb.append("|")
+ .append(DecoratingUtils.getStep(hasStep));
+ });
+
+ sb.append("|");
+ return sb.toString();
+ }
+}
diff --git a/src/main/java/ladderapplication/models/Player.java b/src/main/java/ladderapplication/models/Player.java
new file mode 100644
index 0000000000..7f6063033b
--- /dev/null
+++ b/src/main/java/ladderapplication/models/Player.java
@@ -0,0 +1,20 @@
+package ladderapplication.models;
+
+import ladderapplication.models.requests.PlayerRequest;
+
+public class Player {
+
+ private final String name;
+
+ private Player(String name) {
+ this.name = name;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public static Player from(PlayerRequest playerRequest) {
+ return new Player(playerRequest.getName());
+ }
+}
diff --git a/src/main/java/ladderapplication/models/requests/GameSettingRequest.java b/src/main/java/ladderapplication/models/requests/GameSettingRequest.java
new file mode 100644
index 0000000000..7b6c589132
--- /dev/null
+++ b/src/main/java/ladderapplication/models/requests/GameSettingRequest.java
@@ -0,0 +1,26 @@
+package ladderapplication.models.requests;
+
+import java.util.List;
+
+public class GameSettingRequest {
+
+ private final LadderRequest ladderRequest;
+ private final List<PlayerRequest> playerRequests;
+
+ private GameSettingRequest(LadderRequest ladderRequest, List<PlayerRequest> playerRequests) {
+ this.ladderRequest = ladderRequest;
+ this.playerRequests = playerRequests;
+ }
+
+ public LadderRequest getLadderRequest() {
+ return ladderRequest;
+ }
+
+ public List<PlayerRequest> getPlayerRequests() {
+ return playerRequests;
+ }
+
+ public static GameSettingRequest of(LadderRequest ladderRequest, List<PlayerRequest> playerRequests) {
+ return new GameSettingRequest(ladderRequest, playerRequests);
+ }
+}
diff --git a/src/main/java/ladderapplication/models/requests/LadderRequest.java b/src/main/java/ladderapplication/models/requests/LadderRequest.java
new file mode 100644
index 0000000000..b42be4f1c1
--- /dev/null
+++ b/src/main/java/ladderapplication/models/requests/LadderRequest.java
@@ -0,0 +1,19 @@
+package ladderapplication.models.requests;
+
+public class LadderRequest {
+
+ private final int height;
+
+ private LadderRequest(int height) {
+ this.height = height;
+ }
+
+ public int getHeight() {
+ return height;
+ }
+
+ public static LadderRequest of(int height) {
+ return new LadderRequest(height);
+ }
+
+}
diff --git a/src/main/java/ladderapplication/models/requests/PlayerRequest.java b/src/main/java/ladderapplication/models/requests/PlayerRequest.java
new file mode 100644
index 0000000000..a858183f5a
--- /dev/null
+++ b/src/main/java/ladderapplication/models/requests/PlayerRequest.java
@@ -0,0 +1,18 @@
+package ladderapplication.models.requests;
+
+public class PlayerRequest {
+
+ private final String name;
+
+ private PlayerRequest(String name) {
+ this.name = name;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public static PlayerRequest of(String name) {
+ return new PlayerRequest(name);
+ }
+}
diff --git a/src/main/java/ladderapplication/ui/InputScanner.java b/src/main/java/ladderapplication/ui/InputScanner.java
new file mode 100644
index 0000000000..f1cc554b2a
--- /dev/null
+++ b/src/main/java/ladderapplication/ui/InputScanner.java
@@ -0,0 +1,17 @@
+package ladderapplication.ui;
+
+import java.util.Scanner;
+
+public class InputScanner {
+
+ private static final Scanner SCANNER = new Scanner(System.in);
+
+ public static String stringScan() {
+ return SCANNER.nextLine();
+ }
+
+ public static int intScan() {
+ return SCANNER.nextInt();
+ }
+
+}
diff --git a/src/main/java/ladderapplication/ui/Printer.java b/src/main/java/ladderapplication/ui/Printer.java
new file mode 100644
index 0000000000..4b09d0f0f5
--- /dev/null
+++ b/src/main/java/ladderapplication/ui/Printer.java
@@ -0,0 +1,25 @@
+package ladderapplication.ui;
+
+import ladderapplication.models.requests.GameSettingRequest;
+import ladderapplication.models.requests.LadderRequest;
+import ladderapplication.models.requests.PlayerRequest;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class Printer {
+
+ public static GameSettingRequest requestGameSetting() {
+ System.out.println("참여할 사람 이름을 입력하세요. (이름은 쉼표(,)로 구분하세요)");
+ String players = InputScanner.stringScan();
+ String[] playerArr = players.split(",");
+ List<PlayerRequest> playerRequests = Stream.of(playerArr).map(PlayerRequest::of).collect(Collectors.toList());
+
+ System.out.println("최대 사다리 높이는 몇 개인가요?");
+ int height = InputScanner.intScan();
+ LadderRequest ladderRequest = LadderRequest.of(height);
+
+ return GameSettingRequest.of(ladderRequest, playerRequests);
+ }
+}
diff --git a/src/main/java/ladderapplication/utils/DecoratingUtils.java b/src/main/java/ladderapplication/utils/DecoratingUtils.java
new file mode 100644
index 0000000000..850bd9e4bf
--- /dev/null
+++ b/src/main/java/ladderapplication/utils/DecoratingUtils.java
@@ -0,0 +1,32 @@
+package ladderapplication.utils;
+
+public class DecoratingUtils {
+
+ private static final String EMPTY = " ";
+ private static final String STEP_PIECE = "-";
+ private static final int NAME_SPACE = 6;
+ private static final int STANDARD_SIZE = 4;
+ private static final int STEP_LENGTH = 5;
+
+ public static String getDecoratedName(String name) {
+ StringBuilder sb = new StringBuilder();
+ if (name.length() < STANDARD_SIZE) {
+ sb.append(getRepeatCharacter(EMPTY, STANDARD_SIZE - name.length()));
+ }
+ sb.append(name)
+ .append(getRepeatCharacter(EMPTY, NAME_SPACE - sb.length()));
+ return sb.toString();
+ }
+
+ private static String getRepeatCharacter(String character, int repeatCount) {
+ return character.repeat(repeatCount);
+ }
+
+ public static String getStep(boolean hasStep) {
+ if (hasStep) {
+ return getRepeatCharacter(STEP_PIECE, STEP_LENGTH);
+ }
+
+ return getRepeatCharacter(EMPTY, STEP_LENGTH);
+ }
+}
diff --git a/src/main/java/ladderapplication/validator/PlayerRequestValidator.java b/src/main/java/ladderapplication/validator/PlayerRequestValidator.java
new file mode 100644
index 0000000000..fbdf59f872
--- /dev/null
+++ b/src/main/java/ladderapplication/validator/PlayerRequestValidator.java
@@ -0,0 +1,15 @@
+package ladderapplication.validator;
+
+import ladderapplication.models.requests.PlayerRequest;
+
+public class PlayerRequestValidator {
+
+ private static final String WRONG_NAME = "플레이어 이름음 5글자 이하 여야 합니다.";
+
+ public static void validation(PlayerRequest playerRequest) {
+ if (playerRequest.getName().length() > 5) {
+ throw new IllegalArgumentException(WRONG_NAME);
+ }
+ }
+
+}
diff --git a/src/test/java/ladderapplication/validator/PlayerRequestValidatorTest.java b/src/test/java/ladderapplication/validator/PlayerRequestValidatorTest.java
new file mode 100644
index 0000000000..398605b74d
--- /dev/null
+++ b/src/test/java/ladderapplication/validator/PlayerRequestValidatorTest.java
@@ -0,0 +1,35 @@
+package ladderapplication.validator;
+
+import ladderapplication.models.requests.PlayerRequest;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+class PlayerRequestValidatorTest {
+
+ private static final String WRONG_NAME = "플레이어 이름음 5글자 이하 여야 합니다.";
+ private static final List<PlayerRequest> playerRequests = new ArrayList<>();
+
+ @BeforeAll
+ public static void setPlayerRequest() {
+ String players = "pobi,honux,crong,jk";
+ String[] playerArr = players.split(",");
+ Stream.of(playerArr).forEach(name -> playerRequests.add(PlayerRequest.of(name)));
+ }
+
+ @Test
+ @DisplayName("입력받은 사용자 이름이 5글자가 넘으면 Exception이 발생한다.")
+ void test1() {
+ PlayerRequest playerRequest = PlayerRequest.of("robinson");
+ Exception exception = assertThrows(IllegalArgumentException.class, () -> PlayerRequestValidator.validation(playerRequest));
+ assertThat(exception.getMessage()).isEqualTo(WRONG_NAME);
+
+ }
+}