diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index dd95a34214..988882a11b 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,73 @@
 package baseball;
 
+import java.util.Random;
+import java.util.Scanner;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        Scanner scanner = new Scanner(System.in);
+        Random rand = new Random();
+        rand.setSeed(System.currentTimeMillis());
+
+        int[] computer;
+        computer = new int[3];
+        for(int i=0;i<3;i++){
+            computer[i] = rand.nextInt(9)+1;
+            for(int j=0;j<i;j++){
+                if(computer[i] == computer[j]){
+                    i--;
+                }
+            }
+        }
+
+        //System.out.println(computer[0]+" "+computer[1]+" "+computer[2] ) ;
+
+        System.out.println("숫자 야구 게임을 시작합니다.");
+        while(true){
+            System.out.print("숫자를 입력해주세요 : ");
+            int num = scanner.nextInt(); //사용자 입력부분
+            int[] user;
+            user = new int[3];
+            user[0] = num/100;
+            user[1] = num/10%10;
+            user[2] = num%10;
+
+            int strike=0;
+            for(int i=0; i<3; i++){
+                for(int j=0; j<3; j++){
+                    if(i == j && user[i] == computer[j]){
+                        strike++;
+                    }
+                }
+            }
+            int ball=0; //다른자리에 있으면
+            for(int i=0;i<3;i++){
+                for(int j=0;j<3;j++){
+                    if( i!=j && user[i] == computer[j] ){
+                        ball++;
+                    }
+                }
+            }
+            if(strike ==0 && ball >=1){
+                System.out.println(ball +"볼");
+            } else if( strike != 3 && (strike>=1 && ball ==0)){
+                System.out.println(strike + "스트라이크");
+            } else if(strike !=0 && strike !=3 &&(strike >=1 || ball>=1) ){
+                System.out.println(ball +"볼 " + strike + "스트라이크");
+            } else if(strike ==0 && ball==0){
+                System.out.println("낫싱");
+            }else if(strike == 3){
+                System.out.println("3스트라이크");
+                System.out.println("3개의 숫자를 모두 맞히셨습니다! 게임 종료");
+                System.out.println("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+                int retry = scanner.nextInt();
+                if(retry == 1){
+                    continue;
+                }else if(retry == 2){
+                    break;
+                }
+
+            }
+        }
     }
 }