9 / 30 자동차 레이싱

README.md

@@ -24,3 +24,29 @@ git checkout main // 기본 브랜치가 main인 경우
 git checkout -b 브랜치이름
 ex) git checkout -b apply-feedback
 ```
+
+[] 자동차 이름,위치 정보를 가지는 객체 생성 - Car
+[] 자동차 이름 , 에따라 주어지면 split 해서 Car 객체를 가지는 Cars 그룹 생성 - Cars
+[] Validation체크
+    []이름 5자 체크
+    []null체크
+    []isempty체크
+    []정상적으로 들어왔는지 체크
+    [](,)에 따라 객체 생성 안될시 오류) - Cars
+[] 자동차 움직임 구현 0~1 - Car , move
+[] 자동차 그룹으로 움직임 구현 0~1 - Cars , move
+[] 횟수에 따른 움직임 구현 
+    [] 횟수가 음수 일시 오류 발생
+
+[] 위치 정보에 따른 승자 뽑아내기
+
+----- 출력
+[] 자동차 이름 입력하세요 
+[] 도할 회수 몇회
+[] 실행 결과
+[] 횟수에 따른 이동 결과
+[] 최종 우승 자동차 
+    [] 1명, 0명 , 2명이상
+----- 입력
+[ ]  자동차 이름 입력
+[ ]  횟수 입력

build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'eclipse'
 
 group = 'camp.nextstep'
 version = '1.0.0'
-sourceCompatibility = '1.8'
+sourceCompatibility = "11"
 
 repositories {
 	mavenCentral()
@@ -17,3 +17,4 @@ dependencies {
 test {
 	useJUnitPlatform()
 }
+targetCompatibility = JavaVersion.VERSION_11

src/main/java/StringAddCalculator.java

@@ -0,0 +1,45 @@
+import java.util.Arrays;
+
+public class StringAddCalculator {
+    public static int splitAndSum(String  o) {
+        if (isNullOrEmpty(o)) return 0;
+        if(isCustom(o)) return customSplit(o);
+        if(isOneNumber(o)) return Integer.parseInt(o);
+        NegativeCheck(SplitNumber(o, ",|:"));
+        return Sum(SplitNumber(o, ",|:"));
+    }
+
+    private static String[] SplitNumber(String o, String s) {
+        return o.split(s);
+    }
+
+    private static boolean isNullOrEmpty(String o) {
+        return o == null || o.isEmpty();
+    }
+
+    private static boolean isCustom(String o) {
+        return o.contains("\n");
+    }
+
+    private static boolean isOneNumber(String o) {
+        return o.length() == 1;
+    }
+
+    private static void NegativeCheck(String[] splitNumber) {
+        if (isNegative(splitNumber)) throw new RuntimeException();
+    }
+
+    private static boolean isNegative(String[] splitNumber) {
+        return Arrays.stream(splitNumber).mapToInt(a -> Integer.parseInt(a)).anyMatch(t -> t < 0);
+    }
+
+    private static int customSplit(String o) {
+        String[] custom = SplitNumber(o.substring(2), "\n");
+        NegativeCheck(SplitNumber(custom[1], custom[0]));
+        return Sum(SplitNumber(custom[1], custom[0]));
+    }
+
+    private static int Sum(String[] splitNumber) {
+        return Arrays.stream(splitNumber).mapToInt(a -> Integer.parseInt(a)).sum();
+    }
+}

src/main/java/racing/Application.java

@@ -0,0 +1,7 @@
+package racing;
+
+public class Application {
+    public static void main(String[] args) {
+        RacingCar.run();
+    }
+}

src/main/java/racing/Car.java

@@ -0,0 +1,31 @@
+package racing;
+
+import javax.xml.stream.Location;
+
+public class Car {
+    private final String name;
+    private LocationCar location;
+
+    public Car(String name) {
+        Validation.CheckName(name);
+        this.name =name;
+        this.location = new LocationCar(0);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getLocation() {
+        return location.distance();
+    }
+
+    public void move(int v) {
+        location = location.move(v);
+    }
+
+    @Override
+    public String toString() {
+        return  name + ": " + location +'\n';
+    }
+}

src/main/java/racing/Cars.java

@@ -0,0 +1,33 @@
+package racing;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Cars {
+    private final List<Car> carList;
+
+    public Cars(List<Car> carList) {
+        this.carList = carList;
+    }
+
+    public List<Car> getCar() {
+        return carList;
+    }
+
+    public void move(List<Car> carList) {
+        carList.stream().forEach(car -> car.move((int) Math.round(Math.random())));
+    }
+
+    public int Maxdistance() {
+        return carList.stream().mapToInt(car -> car.getLocation()).max().getAsInt();
+    }
+
+
+    public List<String> WinName(int distance) {
+        return carList.stream().
+                filter(car -> car.getLocation() == distance).
+                map(name -> name.getName()).
+                collect(Collectors.toList());
+    }
+}

src/main/java/racing/Create.java

@@ -0,0 +1,11 @@
+package racing;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Create {
+    public static List<Car> NewCar(String[] car) {
+        return Arrays.stream(car).map(a -> new Car(a)).collect(Collectors.toList());
+    }
+}

src/main/java/racing/LocationCar.java

@@ -0,0 +1,28 @@
+package racing;
+
+public class LocationCar {
+
+
+    private final int location;
+
+    public LocationCar(int location) {
+        this.location = location;
+    }
+
+    public int distance() {
+        return this.location;
+    }
+
+    public LocationCar move(int v) {
+        return new LocationCar(this.location + v);
+    }
+
+    @Override
+    public String toString() {
+        String s = "";
+        for (int i = 0; i <location ; i++) {
+            s += "-";
+        }
+        return s;
+    }
+}

src/main/java/racing/RacingCar.java

@@ -0,0 +1,52 @@
+package racing;
+
+import java.io.*;
+import java.util.List;
+
+public class RacingCar {
+
+    public static void run() {
+
+        try {
+            List<Car> carList = Create.NewCar(InputView.start());
+            Cars cars = new Cars(carList);
+            OutPutView.result(cars,InputView.count());
+        } catch (IOException e) {
+            e.printStackTrace();
+            run();
+        } catch (IllegalArgumentException illegalArgumentException) {
+            System.out.println(illegalArgumentException.getMessage());
+            run();
+        }
+    }
+
+    private static class InputView {
+
+        static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        public static String[] start() throws IOException {
+            System.out.println("경주할 자동차 이름을 입력하세요 ");
+            return (br.readLine()).split(",");
+        }
+
+        public static int count() throws IOException {
+            System.out.println("시도할 횟수는 몇회 인가요?");
+            return Validation.checkNegative(Integer.parseInt(br.readLine()));
+        }
+    }
+
+
+    private static class OutPutView {
+        static StringBuilder st = new StringBuilder();
+        public static void result(Cars cars, int count) {
+            System.out.println("실행 결과");
+            for (int i = 0; i < count; i++) {
+                cars.move(cars.getCar());
+                cars.getCar().stream().forEach(car -> st.append(car.toString()));
+                st.append("\n");
+            }
+            cars.WinName(cars.Maxdistance()).stream().forEach(car->st.append(car).append(","));
+            st.replace(st.length() - 1, st.length(), "가 최종 우승했습니다.");
+            System.out.println(st);
+        }
+    }
+}

src/main/java/racing/Validation.java

@@ -0,0 +1,22 @@
+package racing;
+
+public class Validation {
+
+    public static final int NAME_SIZE = 6;
+
+    public static void CheckName(String name) {
+        ValidationName(name == null, "잘못된 이름 입니다 다시 입력 해 주세요");
+        ValidationName(name.isEmpty() || name.isBlank(), "잘못된 이름 입니다 다시 입력 해 주세요");
+        ValidationName(name.length() >= NAME_SIZE, "이름이 6글자 이상입니다. : "+name);
+    }
+
+
+    private static void ValidationName(boolean b, String s) {
+        if (b) throw new IllegalArgumentException(s);
+    }
+
+    public static int checkNegative(int parseInt) {
+        if(parseInt < 0) throw new IllegalArgumentException("음수는 입력할 수 없습니다.");
+        return parseInt;
+    }
+}

src/test/java/StringAddCalculatorTest.java

@@ -0,0 +1,45 @@
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+public class StringAddCalculatorTest {
+    @Test
+    public void splitAndSum_null_또는_빈문자() {
+        int result = StringAddCalculator.splitAndSum(null);
+        assertThat(result).isEqualTo(0);
+
+        result = StringAddCalculator.splitAndSum("");
+        assertThat(result).isEqualTo(0);
+    }
+
+    @Test
+    public void splitAndSum_숫자하나() throws Exception {
+        int result = StringAddCalculator.splitAndSum("1");
+        assertThat(result).isEqualTo(1);
+    }
+
+    @Test
+    public void splitAndSum_쉼표구분자() throws Exception {
+        int result = StringAddCalculator.splitAndSum("1,2");
+        assertThat(result).isEqualTo(3);
+    }
+
+    @Test
+    public void splitAndSum_쉼표_또는_콜론_구분자() throws Exception {
+        int result = StringAddCalculator.splitAndSum("1,2:3");
+        assertThat(result).isEqualTo(6);
+    }
+
+    @Test
+    public void splitAndSum_custom_구분자() throws Exception {
+        int result = StringAddCalculator.splitAndSum("//;\n1;2;3");
+        assertThat(result).isEqualTo(6);
+    }
+
+    @Test
+    public void splitAndSum_negative() throws Exception {
+        assertThatThrownBy(() -> StringAddCalculator.splitAndSum("-1,2,3"))
+                .isInstanceOf(RuntimeException.class);
+    }
+}

src/test/java/racing/CarTest.java

@@ -0,0 +1,34 @@
+package racing;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Random;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CarTest {
+    @Test
+    void 자동차_객체_생성_확인() {
+        assertThat((new Car("abc")).getName()).isEqualTo("abc");
+    }
+
+    @Test
+    void 자동차_움직임_구현() {
+        Car car = new Car("test1");
+        car.move((int) Math.round(Math.random()));
+        assertThat(car.getLocation()).isLessThanOrEqualTo(1);
+    }
+
+    @Test
+    void 자동차_5번_움직임_구현() {
+        Car car = new Car("test1");
+        for (int i = 0; i <= 5; i++) {
+            car.move((int) Math.round(Math.random()));
+        }
+        System.out.println(car.getLocation());
+        assertThat(car.getLocation()).isGreaterThanOrEqualTo(1);
+        assertThat(car.getLocation()).isLessThanOrEqualTo(5);
+    }
+
+}