Jdbc intro

[NikitaMeln]

No description provided.

[aaananas]

Before you create PR with your homework, you need to go through the checklist under the task and correct all the points described there. The mentor will not check the work until the checklist points are corrected

[aaananas]

Suggested change

	public interface BookDao {
	Book create(Book book);
	Optional<Book> findById(Long id);
	List<Book> findAll();
	Book update(Book book);
	boolean deleteById(Long id);
	}
	public interface BookDao {
	Book create(Book book);
	Optional<Book> findById(Long id);
	List<Book> findAll();
	Book update(Book book);
	boolean deleteById(Long id);
	}

[aaananas]

see common mistakes