[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());
+
+ }
+}