From c959a61f4b655ce0fbac8550cec17900be2204e0 Mon Sep 17 00:00:00 2001
From: "DESKTOP-OMBAS04\\anty3" <anty3125@naver.com>
Date: Wed, 10 May 2023 23:59:33 +0900
Subject: [PATCH] =?UTF-8?q?[=EB=AC=B8=EC=A0=9C=20=ED=92=80=EC=9D=B4=20?=
 =?UTF-8?q?=EC=99=84=EB=A3=8C]?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

이주성
---
 .idea/gradle.xml                              |  1 +
 .../array/level01/basic/Application1.java     |  6 +-
 .../array/level01/basic/Application2.java     |  9 +++
 .../array/level02/normal/Application1.java    | 12 +++-
 .../array/level02/normal/Application2.java    |  9 ++-
 .../array/level03/hard/Application1.java      | 18 +++++-
 .../array/level04/advanced/Application1.java  | 10 +++-
 .../array/level04/advanced/Application2.java  | 55 ++++++++++++++++++-
 .../level01/basic/Application1.java           | 15 ++++-
 .../level02/normal/Application1.java          | 23 ++++++++
 .../level02/normal/Application2.java          | 22 ++++++++
 .../level03/hard/Application1.java            | 51 ++++++++++++++++-
 .../level03/hard/Application2.java            | 42 +++++++++++++-
 .../level04/advanced/Application1.java        | 22 ++++++++
 14 files changed, 285 insertions(+), 10 deletions(-)

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 14746e7..2a65317 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application1.java b/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application1.java
index 76d68d7..db7d821 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application1.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application1.java
@@ -7,7 +7,11 @@ public static void main(String[] args) {
 		/* 길이가 10인 정수형 배열을 선언 및 할당한 뒤
 		 * 각 인덱스에 차례대로 1부터 10까지 값을 넣고 출력하세요
 		 * */
-
+		int [] arr = new int[10];
+		for(int i = 0; i < arr.length; i++){
+			arr[i] = i+1;
+			System.out.print(arr[i] + " ");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application2.java b/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application2.java
index a61d5dc..a7d321c 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application2.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level01/basic/Application2.java
@@ -25,7 +25,16 @@ public static void main(String[] args) {
 		 * -- 출력 예시 --
 		 * 준비된 과일이 없습니다.
 		 * */
+		String [] arr = {"딸기", "바나나", "복숭아", "키위", "사과"};
+		Scanner sc = new Scanner(System.in);
+		System.out.print("0부터 4까지의 정수를 입력하세요 : ");
+		int x = sc.nextInt();
 
+		if(x>4 || x<0){
+			System.out.println("준비된 과일이 없습니다.");
+		}else{
+			System.out.println(arr[x]);
+		}
 
 	}
 
diff --git a/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application1.java b/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application1.java
index 296525f..05bbf76 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application1.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application1.java
@@ -17,7 +17,17 @@ public static void main(String[] args) {
 		 * -- 출력 예시 --
 		 * 입력하신 문자열 helloworld에서 찾으시는 문자 l은 3개 입니다.
 		 * */
-
+		Scanner sc = new Scanner(System.in);
+		System.out.print("문자열을 하나 입력하세요 : ");
+		String str = sc.nextLine();
+		char [] arr = str.toCharArray();
+		System.out.print("검색할 문자를 입력하세요 : ");
+		char c = sc.nextLine().charAt(0);
+		int x = 0;
+		for(int i = 0; i < arr.length; i++){
+			if(arr[i] == c) x++;
+		}
+		System.out.printf("입력하신 문자열 %s에서 찾으시는 문자 %c는 %d개 입니다.", str, c, x);
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application2.java b/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application2.java
index 5528fea..363255c 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application2.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level02/normal/Application2.java
@@ -15,7 +15,14 @@ public static void main(String[] args) {
 		 * -- 출력 예시 --
 		 * 990101-1******
 		 */
-
+		Scanner sc = new Scanner(System.in);
+		System.out.print("주민등록번호를 입력하세요 :");
+		String str = sc.nextLine();
+		char [] arr = str.toCharArray();
+		for(int i = 0; i < arr.length; i++){
+			if(i>7) arr[i] = '*';
+			System.out.print(arr[i]);
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section01/array/level03/hard/Application1.java b/src/main/java/com/ohgiraffers/section01/array/level03/hard/Application1.java
index 4d372ac..1d80bc3 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level03/hard/Application1.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level03/hard/Application1.java
@@ -24,7 +24,23 @@ public static void main(String[] args) {
 		 * -- 출력 예시 --
 		 * 양수 혹은 홀수만 입력해야 합니다.
 		 */
-
+		Scanner sc = new Scanner(System.in);
+		System.out.print("홀수인 양의 정수를 입력하세요 : ");
+		int x = sc.nextInt();
+		int [] arr = new int[x];
+		int a = 1;
+		for(int i = 0; i < arr.length; i++){
+			if(i<=arr.length/2){
+				arr[i] = a;
+				a++;
+				if(i==arr.length/2) a--;
+			}
+			else{
+				a--;
+				arr[i] = a;
+			}
+			System.out.print(arr[i] + " ");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application1.java b/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application1.java
index 070ec36..ecb05e3 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application1.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application1.java
@@ -1,5 +1,6 @@
 package com.ohgiraffers.section01.array.level04.advanced;
 
+import java.util.*;
 public class Application1 {
 
 	public static void main(String[] args) {
@@ -9,7 +10,14 @@ public static void main(String[] args) {
 		 * 1부터 45까지의 중복되지 않는 난수를 발생시켜 각 인덱스에 대입한 뒤
 		 * 오름차순 정렬하여 출력하세요
 		 * */
-
+		int [] arr = new int[6];
+		for(int i = 0; i < arr.length; i++){
+			arr[i] = (int)(Math.random()*45)+1;
+		}
+		Arrays.sort(arr);
+		for(int i = 0; i< arr.length; i++){
+			System.out.print(arr[i] + " ");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application2.java b/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application2.java
index 403c963..3159158 100644
--- a/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application2.java
+++ b/src/main/java/com/ohgiraffers/section01/array/level04/advanced/Application2.java
@@ -1,7 +1,9 @@
 package com.ohgiraffers.section01.array.level04.advanced;
 
-import java.util.Random;
-import java.util.Scanner;
+import java.util.*;
+
+
+import static java.lang.Integer.parseInt;
 
 public class Application2 {
 
@@ -31,6 +33,55 @@ public static void main(String[] args) {
 		 * 4자리 숫자를 입력하세요 : 7416
 		 * 정답입니다.
 		 * */
+		Scanner sc = new Scanner(System.in);
+		int [] arr = new int[4];
+		for(int i = 0; i < arr.length; i++){
+			arr[i] = (int)(Math.random()*9);
+			System.out.print(arr[i]);
+		}
+		System.out.println("");
+
+//		String [] arr1 = new String[arr.length];
+//		for(int i = 0; i<arr1.length; i++){
+//			arr1[i] = Integer.toString(arr[i]);
+//		}
+
+
+		for(int i = 0; i < 10; i++){
+			int b = 0;
+			int s = 0;
+			System.out.printf("%d회 남으셨습니다.\n", 10-i);
+			System.out.println("4자리 숫자를 입력하세요");
+			int x = sc.nextInt();
+			if(arr[0]==x/1000){
+				s++;
+			}else if(x/1000 == arr[1] || x/1000 == arr[2] || x/1000 == arr[3]){
+				b++;
+			}
+			if(arr[1]==x%1000/100){
+				s++;
+			}else if(x%1000/100 == arr[0] || x%1000/100 == arr[2] || x%1000/100 == arr[3]){
+				b++;
+			}
+			if(arr[2]==x%1000%100/10){
+				s++;
+			}else if(x%1000%100/10 == arr[0] || x%1000%100/10 == arr[1] || x%1000%100/10 == arr[3]){
+				b++;
+			}
+			if(arr[3]==x%1000%100%10/1){
+				s++;
+			}else if(x%1000%100%10/1 == arr[0] || x%1000%100%10/1 == arr[1] || x%1000%100%10/1 == arr[2]){
+				b++;
+			}
+			if(s==4){
+				System.out.println("정답입니다.");
+				return;
+			}else{
+				System.out.printf("아쉽네요 %dS %dB 입니다.\n", s, b);
+			}
+
+		}
+		System.out.printf("10번의 기회를 모두 소진하셨습니다. 프로그램을 종료합니다.");
 
 	}
 
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level01/basic/Application1.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level01/basic/Application1.java
index 99e27af..55523ca 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level01/basic/Application1.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level01/basic/Application1.java
@@ -15,7 +15,20 @@ public static void main(String[] args) {
 		 *
 		 * 단, 출력물의 줄맞춤은 신경쓰지 말고 풀어보세요
 		 * */
-
+		int a = 1;
+		int [][] arr = new int [3][4];
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 4; j++){
+				arr[i][j] = a;
+				a++;
+				if(i<2){
+					System.out.print(arr[i][j] + "  ");
+				}else{
+					System.out.print(arr[i][j] + " ");
+				}
+			}
+			System.out.println("");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application1.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application1.java
index 6c8cf77..1de11a4 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application1.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application1.java
@@ -26,7 +26,30 @@ public static void main(String[] args) {
 		 * W H J X
 		 * W S S J
 		 * */
+		Scanner sc = new Scanner(System.in);
+		System.out.print("가로 행의 수를 입력하세요 : ");
+		int x = sc.nextInt();
+		if(x<1 || x>10){
+			System.out.println("반드시 1~10까지의 정수를 입력해야 합니다. 다시 입력하세요.");
+			System.out.print("가로 행의 수를 입력하세요 : ");
+			x = sc.nextInt();
+		}
+		System.out.print("세로 열의 수를 입력하세요 : ");
+		int y = sc.nextInt();
+		if(y<1 || y>10){
+			System.out.println("반드시 1~10까지의 정수를 입력해야 합니다. 다시 입력하세요.");
+			System.out.print("세로 열의 수를 입력하세요 : ");
+			y = sc.nextInt();
+		}
 
+		char arr[][] = new char [x][y];
+		for(int i = 0; i < x; i++){
+			for(int j = 0; j < y; j++){
+				arr[i][j] = (char)((Math.random()*26)+65);
+				System.out.print(arr[i][j] + " ");
+			}
+			System.out.println("");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application2.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application2.java
index ce40f08..1269ae5 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application2.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level02/normal/Application2.java
@@ -33,6 +33,28 @@ public static void main(String[] args) {
 		 * 김정희 대조영
 		 * 김유신 이사부
 		 */
+		String [] arr = {"홍길동", "이순신", "유관순", "윤봉길", "장영실", "임꺽정", "장보고", "이태백", "김정희", "대조영", "김유신", "이사부"};
+		String [][] one = new String[3][2];
+		String [][] two = new String[3][2];
+		int x = 0;
+		System.out.println("== 1분단 ==");
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				one[i][j] = arr[x];
+				x++;
+				System.out.print(one[i][j] + " ");
+			}
+			System.out.println("");
+		}
+		System.out.println("== 2분단 ==");
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				two[i][j] = arr[x];
+				x++;
+				System.out.print(two[i][j] + " ");
+			}
+			System.out.println("");
+		}
 
 	}
 
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application1.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application1.java
index aa6a207..31113c9 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application1.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application1.java
@@ -41,7 +41,56 @@ public static void main(String[] args) {
 		 * 검색할 학생 이름을 입력하세요 : 대조영
 		 * 검색하신 대조영은 2분단 두 번째 줄 오른쪽에 있습니다.
 		 */
-
+		String [] arr = {"홍길동", "이순신", "유관순", "윤봉길", "장영실", "임꺽정", "장보고", "이태백", "김정희", "대조영", "김유신", "이사부"};
+		String [][] one = new String[3][2];
+		String [][] two = new String[3][2];
+		int x = 0;
+		System.out.println("== 1분단 ==");
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				one[i][j] = arr[x];
+				x++;
+				System.out.print(one[i][j] + " ");
+			}
+			System.out.println("");
+		}
+		System.out.println("== 2분단 ==");
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				two[i][j] = arr[x];
+				x++;
+				System.out.print(two[i][j] + " ");
+			}
+			System.out.println("");
+		}
+		String w;
+		Scanner sc = new Scanner(System.in);
+		System.out.print("검색할 학생 이름을 입력하세요 : ");
+		String str = sc.nextLine();
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				if(str.equals(one[i][j])){
+					if(j==0){
+						w = "왼쪽";
+					}else{
+						w = "오른쪽";
+					}
+					System.out.printf("검색하신 %s는(은) 2분단 %d 번째 줄 %s에 있습니다.", str, j+1, w);
+				}
+			}
+		}
+		for(int i = 0; i < 3; i++){
+			for(int j = 0; j < 2; j++){
+				if(str.equals(two[i][j])){
+					if(j==0){
+						w = "왼쪽";
+					}else{
+						w = "오른쪽";
+					}
+					System.out.printf("검색하신 %s는(은) 2분단 %d 번째 줄 %s에 있습니다.", str, j+1, w);
+				}
+			}
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application2.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application2.java
index 1f3b080..47cf2ae 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application2.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level03/hard/Application2.java
@@ -21,7 +21,47 @@ public static void main(String[] args) {
 		 *
 		 * 단, 홀수를 입력하지 않은 경우 "홀수만 입력해야 합니다." 출력
 		 * */
-
+		Scanner sc = new Scanner(System.in);
+		System.out.print("홀수 하나를 입력하세요 : ");
+		int x = sc.nextInt();
+		if(x%2==0){
+			System.out.println("홀수만 입력해야 합니다.");
+			System.out.print("홀수 하나를 입력하세요 : ");
+			x = sc.nextInt();
+		}
+		String arr[][] = new String[x][x];
+		int left = -1;
+		int right = x;
+		for(int i = 0; i < x/2+1; i++){
+			for(int j = 0; j < x; j++){
+				if(j<=left || j>=right){
+					arr[i][j] = " ";
+					System.out.print(arr[i][j]);
+				}else{
+					arr[i][j] = "*";
+					System.out.print(arr[i][j]);
+				}
+			}
+			left++;
+			right--;
+			System.out.println("");
+		}
+		left -= 2;
+		right += 2;
+		for(int i = 0; i < x/2; i++){
+			for(int j = 0; j < x; j++){
+				if(j<=left || j>=right){
+					arr[i][j] = " ";
+					System.out.print(arr[i][j]);
+				}else{
+					arr[i][j] = "*";
+					System.out.print(arr[i][j]);
+				}
+			}
+			left--;
+			right++;
+			System.out.println("");
+		}
 	}
 
 }
diff --git a/src/main/java/com/ohgiraffers/section02/demensional_array/level04/advanced/Application1.java b/src/main/java/com/ohgiraffers/section02/demensional_array/level04/advanced/Application1.java
index b3e8529..a67daf1 100644
--- a/src/main/java/com/ohgiraffers/section02/demensional_array/level04/advanced/Application1.java
+++ b/src/main/java/com/ohgiraffers/section02/demensional_array/level04/advanced/Application1.java
@@ -17,7 +17,29 @@ public static void main(String[] args) {
 		 * -----------------------------------------------
 		 * 합계        229     255      251      735     81.7
 		 * */
+		int arr [][] = {{80, 90, 77},
+				{78, 97, 86},
+				{71, 68, 88}};
+		int hongsum = arr[0][0] + arr[0][1] + arr[0][2];
+		double hongavg = (double)hongsum/3;
+		int leesum = arr[1][0] + arr[1][1] + arr[1][2];
+		double leeavg = (double)leesum/3;
+		int usum = arr[2][0] + arr[2][1] + arr[2][2];
+		double uavg = (double)usum/3;
+		int korsum = arr[0][0] + arr[1][0] + arr[2][0];
+		int engsum = arr[0][1] + arr[1][1] + arr[2][1];
+		int mathsum = arr[0][2] + arr[1][2] + arr[2][2];
+		int sum = korsum + engsum + mathsum;
+		double avg = (double)sum/9;
 
+		System.out.println("================== A반 성적표 ====================");
+		System.out.println("이름			국어		영어		수학		합계		평균");
+		System.out.println("-----------------------------------------------");
+		System.out.printf("홍길동		%d		%d		%d		%d		%.1f\n", arr[0][0], arr[0][1], arr[0][2], hongsum, hongavg);
+		System.out.printf("이순신		%d		%d		%d		%d		%.1f\n", arr[1][0], arr[1][1], arr[1][2], leesum, leeavg);
+		System.out.printf("유관순		%d		%d		%d		%d		%.1f\n", arr[2][0], arr[2][1], arr[2][2], usum, uavg);
+		System.out.println("-----------------------------------------------");
+		System.out.printf("합계	        %d	    %d	    %d		%d		%.1f", korsum, engsum, mathsum, sum, avg);
 	}
 
 }