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java-practice
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week01
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advanced
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ConsoleBulletinBoard.java
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main
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java-practice
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week01
/
advanced
/
ConsoleBulletinBoard.java
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package week01.advanced;
import java.util.Scanner;
public class ConsoleBulletinBoard {
public static void main(String[] args) {
System.out.println("<콘솔 기반 게시판 만들기 (기능 구현)>");
// 27단계 (심화): 콘솔 기반 게시판 만들기 (기능 구현)
// 문제: 문자열 배열을 사용하여 간단한 콘솔 게시판의 핵심 기능을 구현합니다.
// 제목들을 저장할 `String[]` 배열을 만들고,
// 다음 기능을 메뉴로 제공하는 프로그램을 작성하세요.
// 1. 글쓰기: 사용자에게 제목을 입력받아 배열에 추가합니다.
// 2. 목록 보기: 배열에 저장된 모든 제목을 번호와 함께 출력합니다.
// 3. 종료: 프로그램을 끝냅니다.
// - 핵심 사고: 배열의 인덱스를 관리하여 데이터를 추가하고 조회하는 로직
// - 힌트: `String 배열`, `while문`, `switch문`,
// `글 개수를 저장할 count 변수`
int cnt=0;
String [] title = new String[5];
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("------------menu------------");
System.out.println(" 1.글쓰기 || 2.목록 보기 || 3.종료 ");
System.out.println("원하는 메뉴의 숫자를 입력해주세요.> ");
int menu = scanner.nextInt();
scanner.nextLine();//개행 소비
switch(menu) {
case 1:
if(cnt==title.length) {
String[] newTitle = new String[title.length + 5];
System.arraycopy(title, 0, newTitle, 0, title.length);
title = newTitle;
}
System.out.println("제목: ");
title[cnt] = scanner.nextLine();
cnt++;
break;
case 2: for(int i=0; i<cnt;i++) {
System.out.println((i+1)+". 제목: "+title[i]);
}break;
case 3: System.out.println("시스템을 종료합니다.");
scanner.close();
return;
default: System.out.println("메뉴에 없는 번호를 입력하셨습니다."); break;
}
}
}
}
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