From a1df8dd5d470e30396e880225a26fe77f22add1c Mon Sep 17 00:00:00 2001
From: Hongse0 <hongseyoung981007@gmail.com>
Date: Wed, 3 May 2023 15:40:09 +0900
Subject: [PATCH 1/2] =?UTF-8?q?=EC=8B=A4=EC=8A=B51=20=ED=95=B4=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/ohgiraffers/basic/Application.java    | 18 +++++++++++
 .../com/ohgiraffers/basic/Calculator.java     | 32 +++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 src/main/java/com/ohgiraffers/basic/Application.java
 create mode 100644 src/main/java/com/ohgiraffers/basic/Calculator.java

diff --git a/src/main/java/com/ohgiraffers/basic/Application.java b/src/main/java/com/ohgiraffers/basic/Application.java
new file mode 100644
index 0000000..18d8d6c
--- /dev/null
+++ b/src/main/java/com/ohgiraffers/basic/Application.java
@@ -0,0 +1,18 @@
+package com.ohgiraffers.basic;
+
+public class Application {
+    public static void main(String args[]) {
+        //메소드 호출 확인용 메소드 호출
+        Calculator cal = new Calculator();
+        cal.checkMethod();
+
+        //함수를 호출하여 1~10까지의 합을 리턴 받아 출력
+        System.out.println(cal.sum1to10());
+        //10, 20 두 개의 정수를 매개변수로 하여 큰 값 출력하는 메소드 호출
+        System.out.println(cal.checkMaxNumber(20,10));
+        //10, 20 두 개의 정수를 매개변수로 하여 두 수를 더하는 메소드 호출 후 리턴값 출력
+        System.out.println(cal.sumTwoNumber(30,10));
+        // 10, 5 두 개의 정수를 매개변수로 하여 두 수의 차를 구하는 메소드 호출 후 리턴값 출력
+        System.out.println(cal.minusTwoNumber(30,24));
+    }
+}
diff --git a/src/main/java/com/ohgiraffers/basic/Calculator.java b/src/main/java/com/ohgiraffers/basic/Calculator.java
new file mode 100644
index 0000000..d53bdec
--- /dev/null
+++ b/src/main/java/com/ohgiraffers/basic/Calculator.java
@@ -0,0 +1,32 @@
+package com.ohgiraffers.basic;
+
+public class Calculator {
+
+    public void checkMethod(){
+        System.out.println("메소드 호출 확인");
+    }
+    public int sum1to10(){
+        int i =0;
+        for(int j=0; j<11; j++){
+            i += j;
+        }
+        return i;
+    }
+
+    public int checkMaxNumber(int a, int b){
+        if(a>b){
+            return a;
+        }else{
+            return b;
+        }
+
+    }
+    public int sumTwoNumber(int a, int b){
+        return a+b;
+    }
+    public int minusTwoNumber(int a, int b){
+        return a-b;
+    }
+
+
+}

From e8ce5ed8d4558a42736dd6aadcbdf08f1f6c6b86 Mon Sep 17 00:00:00 2001
From: Hongse0 <hongseyoung981007@gmail.com>
Date: Wed, 3 May 2023 22:30:56 +0900
Subject: [PATCH 2/2] =?UTF-8?q?=EC=8B=A4=EC=8A=B52=20=EB=AC=B8=EC=A0=9C=20?=
 =?UTF-8?q?=ED=95=B4=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../greedy/level02/normal/Application.java    | 17 +++++++++
 .../greedy/level02/normal/RandomMaker.java    | 37 +++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 src/main/java/com/greedy/level02/normal/Application.java
 create mode 100644 src/main/java/com/greedy/level02/normal/RandomMaker.java

diff --git a/src/main/java/com/greedy/level02/normal/Application.java b/src/main/java/com/greedy/level02/normal/Application.java
new file mode 100644
index 0000000..184a957
--- /dev/null
+++ b/src/main/java/com/greedy/level02/normal/Application.java
@@ -0,0 +1,17 @@
+package com.greedy.level02.normal;
+
+public class Application {
+    public static void main(String[] args) {
+        RandomMaker rm = new RandomMaker();
+        //첫 번째 인자의 최소값 부터 두 번쨰 인자까지 범위의 난수를 출력 (randomNumber 호출)
+        System.out.println(rm.randomNumber(10,20));
+        // 인자로 전달한 정수 길이의 랜덤한 문자열을 출력함 (randomUpperAlphabet 호출)
+        System.out.println(rm.randomUpperAlphabet(10));
+        // 가위, 바위, 보 중 한 가지를 출력함 (rockPaperScissors 호출)
+        System.out.println(rm.rockPaperScissors());
+        //앞면, 뒷면 중 한 가지를 출력함 (tossCoin 호출)
+        System.out.println(rm.tossCoin());
+
+
+    }
+}
diff --git a/src/main/java/com/greedy/level02/normal/RandomMaker.java b/src/main/java/com/greedy/level02/normal/RandomMaker.java
new file mode 100644
index 0000000..5f1c847
--- /dev/null
+++ b/src/main/java/com/greedy/level02/normal/RandomMaker.java
@@ -0,0 +1,37 @@
+package com.greedy.level02.normal;
+
+import java.util.Random;
+
+public class RandomMaker {
+
+    public int randomNumber(int min, int max) {
+        return (int) (Math.random()*(max-min)+min);
+    }
+    public String randomUpperAlphabet(int length){
+        if(length < 1){
+            return "Error";
+        }
+        Random rand = new Random();
+        StringBuilder sb = new StringBuilder();
+
+        for(int i=0; i<length; i++){
+            char c = (char)(rand.nextInt(26)+'A');
+            sb.append(c);
+        }
+        return sb.toString();
+    }
+
+    public String rockPaperScissors(){
+        String[] one = {"rock","paper","scissors"};
+        Random rand = new Random();
+        int i = (int)(rand.nextInt(3));
+        return one[i];
+    }
+
+    public String tossCoin(){
+        String[] coin = {"앞면","뒷면"};
+        Random rand = new Random();
+        int i = (int)(rand.nextInt(2));
+        return coin[i];
+    }
+}