[로또 게임] 김지웅 2차 과제 제출합니다.

src/main/java/lotto/Controller/Application.java

@@ -0,0 +1,28 @@
+package lotto.Controller;
+
+import lotto.Model.Lotto;
+import lotto.Model.LottoNumGenerater;
+import lotto.Model.LottoResultChecker;
+import lotto.View.LottoInput;
+import lotto.View.LottoResultPrinter;
+
+import java.util.List;
+
+public class Application {
+    public static void main(String[] args) {
+        LottoInput input = new LottoInput();
+        LottoNumGenerater lottoGenerate = new LottoNumGenerater();
+        LottoResultChecker lottoResultCheck = new LottoResultChecker();
+        LottoResultPrinter lottoResultPrint = new LottoResultPrinter();
+
+        int lottoPrice = input.getLottoPrice();
+        int lottoNum = lottoPrice / 1000;
+
+        List<Lotto> lottos = lottoGenerate.generateLottos(lottoNum);
+        List<Integer> correctNum = input.getCorrectNum();
+        int bonusNum = input.getBonusNum();
+
+        int[] prizeCounts = lottoResultCheck.checkCorrectNum(lottos, correctNum, bonusNum);
+        lottoResultPrint.printResult(prizeCounts, lottoPrice);
+    }
+}

src/main/java/lotto/Lotto.java → src/main/java/lotto/Model/Lotto.java

@@ -1,4 +1,4 @@
-package lotto;
+package lotto.Model;
 
 import java.util.List;
 
@@ -12,9 +12,11 @@ public Lotto(List<Integer> numbers) {
 
     private void validate(List<Integer> numbers) {
         if (numbers.size() != 6) {
-            throw new IllegalArgumentException();
+            throw new IllegalArgumentException("[ERROR] 로또 번호는 6개여야 합니다.");
         }
     }
 
-    // TODO: 추가 기능 구현
+    public List<Integer> getNumbers() {
+        return numbers;
+    }
 }

src/main/java/lotto/Model/LottoNumGenerater.java

@@ -0,0 +1,21 @@
+package lotto.Model;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class LottoNumGenerater {
+
+    public List<Lotto> generateLottos(int count) {
+        List<Lotto> lottoNumList = new ArrayList<>();
+        for (int i = 0; i < count; i++) {
+            List<Integer> numbers = Randoms.pickUniqueNumbersInRange(1, 45, 6);
+            Collections.sort(numbers);
+            lottoNumList.add(new Lotto(numbers));
+            System.out.println(numbers);
+        }
+        return lottoNumList;
+    }
+}

src/main/java/lotto/Model/LottoResultChecker.java

@@ -0,0 +1,44 @@
+package lotto.Model;
+
+import java.util.List;
+
+public class LottoResultChecker {
+    public int[] checkCorrectNum(List<Lotto> lottos, List<Integer> winningNumbers, int bonusNumber) {
+        int[] prizeCnt = new int[5];
+        for (Lotto lotto : lottos) {
+            int correctCnt = 0;
+            boolean bonusCorrect = false;
+
+            for (Integer number : lotto.getNumbers()) {
+                if (winningNumbers.contains(number)) {
+                    correctCnt++;
+                }
+            }
+
+            if (lotto.getNumbers().contains(bonusNumber)) {
+                bonusCorrect = true;
+            }
+
+            if (correctCnt == 6) {
+                prizeCnt[4]++;
+            }
+
+            if (correctCnt == 5 && bonusCorrect) {
+                prizeCnt[3]++;
+            }
+
+            if (correctCnt == 5 && !bonusCorrect) {
+                prizeCnt[2]++;
+            }
+
+            if (correctCnt == 4) {
+                prizeCnt[1]++;
+            }
+
+            if (correctCnt == 3) {
+                prizeCnt[0]++;
+            }
+        }
+        return prizeCnt;
+    }
+}

src/main/java/lotto/View/LottoInput.java

@@ -0,0 +1,119 @@
+package lotto.View;
+
+import java.io.Console;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class LottoInput {
+    private final Console console = System.console();
+    private final Scanner scanner;
+
+    public LottoInput() {
+        if (console == null) {
+            scanner = new Scanner(System.in);
+        } else {
+            scanner = null;
+        }
+    }
+
+    static final int MIN_LOTTO_NUMBER = LottoNumberRange.MIN_NUMBER.getValue();
+    static final int MAX_LOTTO_NUMBER = LottoNumberRange.MAX_NUMBER.getValue();
+    static final int LOTTO_NUMBER_COUNT = 6;
+    static final int LOTTO_PRICE_UNIT = 1000;
+
+    public enum LottoNumberRange {
+        MIN_NUMBER(1),
+        MAX_NUMBER(45);
+
+        final int value;
+
+        LottoNumberRange(int value) {
+            this.value = value;
+        }
+
+        public int getValue() {
+            return value;
+        }
+    }
+
+    public int getLottoPrice() {
+        while (true) {
+            try {
+                System.out.println("구입금액을 입력해주세요.");
+                String input;
+                if (console != null) {
+                    input = console.readLine();
+                } else {
+                    input = scanner.nextLine();
+                }
+                int lottoPrice = Integer.parseInt(input);
+                if (lottoPrice % LOTTO_PRICE_UNIT != 0) {
+                    throw new IllegalArgumentException("[ERROR] 구입 금액은 " + LOTTO_PRICE_UNIT + "원 단위로 입력해야 합니다.");
+                }
+                return lottoPrice;
+            } catch (IllegalArgumentException e) {
+                System.out.println(e.getMessage());
+            }
+        }
+    }
+
+    public List<Integer> getCorrectNum() {
+        while (true) {
+            try {
+                System.out.println("당첨 번호를 입력해 주세요.");
+                String input;
+                if (console != null) {
+                    input = console.readLine();
+                } else {
+                    input = scanner.nextLine();
+                }
+                return splitLottoNum(input);
+            } catch (IllegalArgumentException e) {
+                System.out.println(e.getMessage());
+            }
+        }
+    }
+
+    public int getBonusNum() {
+        while (true) {
+            try {
+                System.out.println("보너스 번호를 입력해주세요.");
+                String input;
+                if (console != null) {
+                    input = console.readLine();
+                } else {
+                    input = scanner.nextLine();
+                }
+                int bonusNumber = Integer.parseInt(input);
+                if (bonusNumber < MIN_LOTTO_NUMBER || bonusNumber > MAX_LOTTO_NUMBER) {
+                    throw new IllegalArgumentException("[ERROR] 보너스 번호는 " + MIN_LOTTO_NUMBER + "부터 " + MAX_LOTTO_NUMBER + " 사이의 숫자여야 합니다.");
+                }
+                return bonusNumber;
+            } catch (IllegalArgumentException e) {
+                System.out.println(e.getMessage());
+            }
+        }
+    }
+
+    private List<Integer> splitLottoNum(String input) {
+        String[] splitLottoNumList = input.split(",");
+        List<Integer> lottoNum = new ArrayList<>();
+
+        for (String splitLottoNum : splitLottoNumList) {
+            try {
+                int num = Integer.parseInt(splitLottoNum.trim());
+                if (num < MIN_LOTTO_NUMBER || num > MAX_LOTTO_NUMBER) {
+                    throw new IllegalArgumentException("[ERROR] 로또 번호는 " + MIN_LOTTO_NUMBER + "부터 " + MAX_LOTTO_NUMBER + " 사이의 숫자여야 합니다.");
+                }
+                lottoNum.add(num);
+            } catch (NumberFormatException e) {
+                throw new IllegalArgumentException("[ERROR] 잘못된 형식의 숫자가 입력되었습니다.");
+            }
+        }
+        if (lottoNum.size() != LOTTO_NUMBER_COUNT) {
+            throw new IllegalArgumentException("[ERROR] 당첨 번호는 " + LOTTO_NUMBER_COUNT + "개여야 합니다.");
+        }
+        return lottoNum;
+    }
+}

src/main/java/lotto/View/LottoResultPrinter.java

@@ -0,0 +1,24 @@
+package lotto.View;
+
+public class LottoResultPrinter {
+    private final int[] prizeMoney = { 5000, 50000, 1500000, 30000000, 2000000000 };
+
+    public void printResult(int[] prizeCnt, int totalCost) {
+        int totalMoney = 0;
+
+        System.out.println("당첨 통계");
+        System.out.println("---");
+        System.out.println("3개 일치 (5,000원) - " + prizeCnt[0] + "개");
+        System.out.println("4개 일치 (50,000원) - " + prizeCnt[1] + "개");
+        System.out.println("5개 일치 (1,500,000원) - " + prizeCnt[2] + "개");
+        System.out.println("5개 일치, 보너스 볼 일치 (30,000,000원) - " + prizeCnt[3] + "개");
+        System.out.println("6개 일치 (2,000,000,000원) - " + prizeCnt[4] + "개");
+
+        for (int i = 0; i < prizeCnt.length; i++) {
+            totalMoney += prizeCnt[i] * prizeMoney[i];
+        }
+
+        double benefitRate = ((double) totalMoney / totalCost) * 100;
+        System.out.printf("총 수익률은 %.1f%%입니다.\n", benefitRate);
+    }
+}

src/test/java/lotto/ApplicationTest.java

@@ -1,6 +1,7 @@
 package lotto;
 
 import camp.nextstep.edu.missionutils.test.NsTest;
+import lotto.Controller.Application;
 import org.junit.jupiter.api.Test;
 
 import java.util.List;

src/test/java/lotto/LottoTest.java

@@ -1,5 +1,6 @@
 package lotto;
 
+import lotto.Model.Lotto;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;