리스트 커렌보드,아이디

	public Article getArticlebyIdinCurrentBoard(int i, Board currentBoard) {
		List<Article> articles = getArticles();

		for (Article article : articles) {
			if (article.getBoardId() == currentBoard.getId()) {
				if (article.getId() == i) {
					return article;
				}
			}
		}

		return null;
	}