From cdb9f0a9d4bd0ca3bbd5c28f798eece67caf33fd Mon Sep 17 00:00:00 2001
From: Jihyun <Jihyun@gmail.com>
Date: Mon, 8 Jul 2024 12:50:30 +0900
Subject: [PATCH] initial commit

---
 build.gradle                                 |  1 +
 src/main/java/baseball/Application.java      | 44 +++++++++++++++++-
 src/main/java/baseball/Count.java            | 49 ++++++++++++++++++++
 src/main/java/baseball/ExceptionHandler.java | 15 ++++++
 src/main/java/baseball/RandomNumber.java     | 22 +++++++++
 5 files changed, 130 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/baseball/Count.java
 create mode 100644 src/main/java/baseball/ExceptionHandler.java
 create mode 100644 src/main/java/baseball/RandomNumber.java

diff --git a/build.gradle b/build.gradle
index 080ed8c12e..526501b8f9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,3 +23,4 @@ java {
 test {
     useJUnitPlatform()
 }
+
diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index dd95a34214..a2859b46a7 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,49 @@
 package baseball;
 
+import camp.nextstep.edu.missionutils.Randoms;
+import camp.nextstep.edu.missionutils.Console;
+
+import java.util.Scanner;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("숫자 야구 게임을 시작합니다.");
+        int[] randoms = new int[3];
+        RandomNumber random = new RandomNumber();
+        random.randomNumber(randoms);
+
+        while (true) {
+            try {
+                System.out.print("숫자를 입력해주세요 : ");
+
+                String answer = Console.readLine();
+                ExceptionHandler exceptionHandler = new ExceptionHandler();
+                exceptionHandler.checkValid(answer);
+
+                String[] answers = new String[3];
+                for (int i = 0; i < 3; i++) {
+                    answers[i] = answer.substring(i, i + 1);
+                }
+
+                Count count = new Count();
+                count.countStrike(randoms, answers);
+                count.countBall(randoms, answers);
+                count.printCount();
+
+                if (count.getStrikes() == 3) {
+                    System.out.println("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+                    int option = scanner.nextInt();
+                    if (option == 2) {
+                        return;
+                    } else {
+                        random.randomNumber(randoms);
+                    }
+                }
+            } catch (IllegalArgumentException e){
+                throw e;
+            }
+        }
     }
 }
diff --git a/src/main/java/baseball/Count.java b/src/main/java/baseball/Count.java
new file mode 100644
index 0000000000..ac5f2df528
--- /dev/null
+++ b/src/main/java/baseball/Count.java
@@ -0,0 +1,49 @@
+package baseball;
+
+public class Count {
+    int strikes = 0;
+    int balls = 0;
+
+    int countStrike(int[] r, String[] str) {
+        for (int i = 0; i < 3; i++) {
+            if (r[i] == Integer.parseInt(str[i])) {
+                strikes++;
+            }
+        }
+        return strikes;
+    }
+
+    int countBall(int[] r, String[] str) {
+        for (int i = 0; i < 3; i++) {
+            for (int j = 0; j < 3; j++) {
+                if (i != j && r[i] == Integer.parseInt(str[j])) {
+                    balls++;
+                }
+            }
+        }
+        return balls;
+    }
+
+    void printCount() {
+        if(strikes == 3){
+            System.out.println("3스트라이크");
+            System.out.println("3개의 숫자를 모두 맞히셨습니다! 게임종료");
+        }
+        else if(strikes == 0 && balls != 0){
+            System.out.println(balls + "볼");
+        }
+        else if(strikes != 0 && balls == 0){
+            System.out.println(strikes + "스트라이크");
+        }
+        else if(strikes != 0 && balls != 0){
+            System.out.println(balls + "볼 " + strikes + "스트라이크");
+        }
+        else{
+            System.out.println("낫싱");
+        }
+    }
+
+    int getStrikes() {
+        return strikes;
+    }
+}
diff --git a/src/main/java/baseball/ExceptionHandler.java b/src/main/java/baseball/ExceptionHandler.java
new file mode 100644
index 0000000000..813113f745
--- /dev/null
+++ b/src/main/java/baseball/ExceptionHandler.java
@@ -0,0 +1,15 @@
+package baseball;
+
+public class ExceptionHandler {
+    void checkValid(String answer){
+        if(answer.length() != 3){
+            throw new IllegalArgumentException("3자리 수를 입력합니다.");
+        }
+        for (int i = 0; i < 3; i++) {
+            String a = answer.substring(i, i + 1);
+            if(a.equals("0")){
+                throw new IllegalArgumentException("잘못된 값을 입력했습니다.");
+            }
+        }
+    }
+}
diff --git a/src/main/java/baseball/RandomNumber.java b/src/main/java/baseball/RandomNumber.java
new file mode 100644
index 0000000000..2d8fd5e9af
--- /dev/null
+++ b/src/main/java/baseball/RandomNumber.java
@@ -0,0 +1,22 @@
+package baseball;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class RandomNumber {
+    void randomNumber(int[] r){
+        boolean duplicate;
+
+        for (int i = 0; i < 3; i++) {
+            do {
+                duplicate = false;
+                r[i] = Randoms.pickNumberInRange(1, 9);
+                for (int j = 0; j < i; j++) {
+                    if (r[i] == r[j]) {
+                        duplicate = true;
+                        break;
+                    }
+                }
+            } while (duplicate);
+        }
+    }
+}