[10주차] ysy

.gitignore

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+
+# Created by .ignore support plugin (hsz.mobi)
+### Java template
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+.DS_Store
+.gradle
+/build/
+!gradle/wrapper/gradle-wrapper.jar
+/out/
+/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr

racingcar실습/java/Application.java

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+import utils.GameUtils;
+
+public class Application {
+    public static void main(String[] args) {
+        GameUtils.run();
+    }
+}

racingcar실습/java/inpututils/InputValidator.java

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+package inpututils;
+
+public class InputValidator {
+    private static final int MAX_NAME = 5;
+
+    public static void nameValidator(String name) {
+        nullCheck(name);
+        lengthCheck(name);
+    }
+
+    public static void nullCheck(String name) {
+        if ("".equals(name)) {
+            throw new IllegalArgumentException("[ERROR]자동차 이름을 입력해주세요.");
+        }
+    }
+
+    public static void lengthCheck(String name) {
+        if (name.length() > MAX_NAME) {
+            throw new IllegalArgumentException("[ERROR]자동차 이름은 5자 이내여야합니다.");
+        }
+    }
+
+}

racingcar실습/java/inpututils/InputView.java

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+package inpututils;
+
+import java.util.Scanner;
+
+public class InputView {
+    private static final Scanner SCANNER = new Scanner(System.in);
+
+    public static String getCarName() {
+        System.out.print("경주 할 자동차 이름 : ");
+        return SCANNER.nextLine();
+    }
+
+    public static int getTryNumber() {
+        System.out.print("시도할 횟수 : ");
+        try {
+            return SCANNER.nextInt();
+        } catch (NumberFormatException e) {
+            throw new NumberFormatException("[ERROR] 시도 횟수는 숫자여야 한다.");
+        }
+    }
+}

racingcar실습/java/outpututils/OutputView.java

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+package outpututils;
+
+import java.util.ArrayList;
+
+public class OutputView {
+    private OutputView() {
+    }
+    public static void printCarName(String name) {
+        System.out.print(name + " : ");
+    }
+
+    public static void printMove() {
+        System.out.print("-");
+    }
+
+    public static void printWinner(ArrayList<String> winner) {
+        //TODO:마지막에 , 나오지 않도록 수정 필요
+        winner.stream()
+                .forEach(w -> System.out.print(w + ","));
+    }
+}

racingcar실습/java/racingcar/Car.java

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+package racingcar;
+
+import utils.GameUtils;
+
+public class Car {
+    private final String name;
+    private int position = 0;
+
+    public Car(String name) {
+        InputValidator.nameValidator(name);
+        this.name = name;
+    }
+
+    public String getName(){
+        return name;
+    }
+
+    public int plusPosition(){
+        return position++;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+}

racingcar실습/java/racingcar/Cars.java

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+package racingcar;
+
+import outpututils.OutputView;
+import utils.RandomUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Cars {
+    private static final int START_NUMBER = 0;
+    private static final int END_NUMBER = 9;
+    private static final int BOUNDARY_NUMBER = 4;
+    private static List<Car> carList;
+    private static ArrayList<String> winner;
+
+    public Cars(List<Car> carList) {
+        this.carList = carList;
+    }
+
+    public static boolean isMove(int randomNumber) {
+        if (randomNumber >= BOUNDARY_NUMBER) {
+            return true;
+        }
+        return false;
+    }
+
+    public static void playGame() {
+        for (int j = 0; j < carList.size(); j++) {
+            OutputView.printCarName(carList.get(j).getName());
+
+            if (isMove(RandomUtils.nextInt(START_NUMBER, END_NUMBER))) {
+                carList.get(j).plusPosition();
+            }
+            for (int k = 0; k < carList.get(j).getPosition(); k++) {
+                OutputView.printMove();
+            }
+            System.out.println();
+        }
+    }
+
+    public static int getMax() {
+        int max = carList.stream()
+                .mapToInt(Car::getPosition)
+                .max()
+                .getAsInt();
+        return max;
+    }
+
+    public static void setWinnerList(int max) {
+        winner = new ArrayList<String>();
+        carList.stream()
+                .filter(s -> s.getPosition() == max)
+                .filter(s -> winner.add(s.getName()))
+                .collect(Collectors.toList());
+    }
+
+    public static ArrayList<String> getWinnerList() {
+        return winner;
+    }
+    public static void playGames(int inputCount){
+        for (int i = 0; i < inputCount; i++) {
+            playGame();
+            System.out.println();
+        }
+    }
+}

racingcar실습/java/utils/GameUtils.java

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+package utils;
+
+import inpututils.InputView;
+import outpututils.OutputView;
+import racingcar.Car;
+import racingcar.Cars;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class GameUtils {
+
+    public static List<Car> makeCarList(String[] splitResult) {
+        return Arrays.stream(splitResult)
+                .map(Car::new)
+                .collect(Collectors.toList());
+    }
+
+    public static void run() {
+        String inputName = InputView.getCarName();
+        int inputCount = InputView.getTryNumber();
+        String[] splitResult = SplitString.splitString(inputName);
+
+        Cars cars = new Cars(makeCarList(splitResult));
+
+        Cars.playGames(inputCount);
+        Cars.setWinnerList(Cars.getMax());
+        OutputView.printWinner(Cars.getWinnerList());
+
+    }
+}