From 6222e24cec51013cde5d390ccf320f87367f9845 Mon Sep 17 00:00:00 2001
From: oboil <parkmisonme777@gmail.com>
Date: Mon, 5 Aug 2024 13:36:08 +0900
Subject: [PATCH] =?UTF-8?q?docs(application):=20application=20=EC=9E=91?=
 =?UTF-8?q?=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 README.md                      |   8 ++-
 src/main/java/Application.java | 118 +++++++++++++++++++++++++++++++++
 2 files changed, 125 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/Application.java

diff --git a/README.md b/README.md
index 491aece1..d8a54ce1 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,7 @@
-# java-racingcar-precourse
\ No newline at end of file
+# java-racingcar-precourse
+
+**구현할 기능**
+1. 자동차 이름 입력
+2. 난수에 따른 자동차 진행
+3. 자동차들 진행 출력
+4. 자동차들 진행 비교(우승자)
\ No newline at end of file
diff --git a/src/main/java/Application.java b/src/main/java/Application.java
new file mode 100644
index 00000000..6ece6523
--- /dev/null
+++ b/src/main/java/Application.java
@@ -0,0 +1,118 @@
+import java.util.Scanner;
+import java.util.ArrayList;
+import java.util.Random;
+
+public class Application {
+    static String[] names;
+    static ArrayList<Car> cars = new ArrayList<>();
+    static Scanner sc = new Scanner(System.in);
+
+    public static void main(String[] args) {
+
+        boolean inputEx = false;
+
+        while (!inputEx) {
+            System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉽표(,) 기준으로 구분)");
+            try {
+                inputName();
+                inputEx = true;
+            } catch (IllegalArgumentException e) {
+                System.out.println("[ERROR] " + e.getMessage());
+            }
+            
+        }
+
+        System.out.println("시도할 횟수는 몇 회인가요?");
+        int play = sc.nextInt();
+
+        System.out.println("실행 결과");
+        printRace(play);
+            
+        winner();
+
+    }
+
+    /* 자동차 이름 입력 */
+    public static void inputName(){
+        
+        String input = sc.nextLine();
+        names = input.split(",");
+
+        for (int i = 0; i<names.length; i++){
+            if (names[i].length() > 5)
+                throw new IllegalArgumentException("자동차 이름은 5글자 이하입니다.");
+            cars.add(new Car(names[i]));
+        }
+
+    }
+
+    /* 난수로 자동차 진행 */
+    public static void step(){
+        Random rand = new Random();
+        for (Car car : cars){
+            int go = rand.nextInt(10);
+            if ( go >= 4 ){
+                car.go++;
+            }
+        }
+    }
+
+    /* 자동차 진행 출력 */
+    public static void printRace(int play){
+        for (int i = 0; i < play; i++) {
+            step();
+            printStep();
+        }
+    }
+    public static void printStep(){
+        for (Car car : cars){
+            System.out.printf(car.name + " : " );
+            printGo(car);
+        }
+        System.out.println();
+    }
+    public static void printGo(Car c){
+        for (int i=0; i<c.go; i++){
+            System.out.print("-");
+        }
+        System.out.println();
+    }
+
+    /* 승부 */
+    public static void winner(){
+        ArrayList<Car> winners = new ArrayList<>();
+
+        int maxGo = 0;
+        /* maxGo 정의 */
+        for (Car car : cars){
+            if (car.go > maxGo){
+                maxGo = car.go;
+            }
+        }
+
+        /* maxGo와 비교해 winner에 넣음 */
+        for (Car car : cars){
+            if (car.go == maxGo){
+                winners.add(car);
+            }
+        }
+
+        System.out.printf("최종 우승자 : ");
+        for (int i=0; i<winners.size(); i++){
+            if (i > 0){
+                System.out.printf(", ");
+            }
+            System.out.printf(winners.get(i).name);
+        }
+    }
+
+}
+
+class Car {
+    String name;
+    int go = 0;
+
+    Car(String name){
+        this.name = name;
+    }
+}
\ No newline at end of file