object oriented programing questions

There is a book library. Define classes respectively for a book and a library. The library must contain a name and a list of books. The books must contain the title, author, publisher, release date and ISBN-number. In the class, which describes the library, create methods to add a book to the library, to search for a book by a predefined author, to display information about a book and to delete a book from the library.

Write a test class, which creates an object of type library, adds several books to it and displays information about each of them. Implement a test functionality, which finds all books authored by Stephen King and deletes them. Finally, display information for each of the remaining books

solution of your program:

class Book
{
public string Title;
public string Author;
public string Publisher;
public DateTime ReleaseDate;
public string ISBNnumber;
}
class Library
{
public string Name;
public List Books = new List();
public void AddBook(string title, string author, string publisher, DateTime releaseDate, string iSBNnumber)
{
Book newBook = new Book
{
Author = author,
Title = title,
ISBNnumber = iSBNnumber,
Publisher = publisher,
ReleaseDate = releaseDate
};
Books.Add(newBook);
}
public void DisplayBookInfo(Book book)
{
Console.WriteLine($"Title-{book.Title}, Author-{book.Author}, ISBNnumber-{book.ISBNnumber}");
}
public void DeleteBook(Book book)
{
Books.Remove(book);
}
public List SearchBook()
{
var authorName = "Stephen King";
return Books.Where(x => x.Author == authorName).ToList();
}
}
class Test
{
static void Main(string[] args)
{
Library library = new Library();//Create Library object
library.AddBook("CSharp Programming", "Stephen King", "Pub1", DateTime.Now, "ISBN001"); //Add book 1
library.AddBook("Java Programming", "Avnish", "Pub1", DateTime.Now, "ISBN002"); //Add book 2
library.AddBook("Php Programming", "Avnish", "Pub1", DateTime.Now, "ISBN003"); //Add book 3
library.AddBook("Ml Programming", "Stephen King", "Pub1", DateTime.Now, "ISBN004"); //Add book 4
Console.WriteLine("Total books in Library");
if (library.Books.Count > 0)
{
foreach (var book in library.Books)
{
library.DisplayBookInfo(book);// display all books
}
Console.WriteLine("Search for all books authored by Stephen King");
var seachedBooks = library.SearchBook();
Console.WriteLine(seachedBooks.Count + " books found and deleted");
foreach (var book in seachedBooks)
{
library.DeleteBook(book);// delete books
}
Console.WriteLine("Remaining books in Library");
foreach (var book in library.Books)
{
library.DisplayBookInfo(book);// display all books
}
}
Console.ReadKey();
}
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Avnish Kumar6y ago
solution of your program:
class Book
   {
       public string Title;
       public string Author;
       public string Publisher;
       public DateTime ReleaseDate;
       public string ISBNnumber;

   }
   class Library
   {
       public string Name;
       public List Books = new List();
       public void AddBook(string title, string author, string publisher, DateTime releaseDate, string iSBNnumber)
       {
           Book newBook = new Book
           {
               Author = author,
               Title = title,
               ISBNnumber = iSBNnumber,
               Publisher = publisher,
               ReleaseDate = releaseDate
           };
           Books.Add(newBook);
       }
       public void DisplayBookInfo(Book book)
       {
           Console.WriteLine($"Title-{book.Title}, Author-{book.Author}, ISBNnumber-{book.ISBNnumber}");
       }
       public void DeleteBook(Book book)
       {
           Books.Remove(book);
       }
       public List SearchBook()
       {
           var authorName = "Stephen King";
           return Books.Where(x => x.Author == authorName).ToList();

       }
   }

   class Test
   {
       static void Main(string[] args)
       {
           Library library = new Library();//Create Library object
           library.AddBook("CSharp Programming", "Stephen King", "Pub1", DateTime.Now, "ISBN001"); //Add book 1
           library.AddBook("Java Programming", "Avnish", "Pub1", DateTime.Now, "ISBN002"); //Add book 2
           library.AddBook("Php Programming", "Avnish", "Pub1", DateTime.Now, "ISBN003"); //Add book 3
           library.AddBook("Ml Programming", "Stephen King", "Pub1", DateTime.Now, "ISBN004"); //Add book 4
           Console.WriteLine("Total books in Library");
           if (library.Books.Count > 0)
           {
               foreach (var book in library.Books)
               {
                   library.DisplayBookInfo(book);// display all books
               }

               Console.WriteLine("Search for all books authored by Stephen King");
               var seachedBooks = library.SearchBook();
               Console.WriteLine(seachedBooks.Count + " books found and deleted");
               foreach (var book in seachedBooks)
               {
                   library.DeleteBook(book);// delete books
               }
               Console.WriteLine("Remaining books in Library");
               foreach (var book in library.Books)
               {
                   library.DisplayBookInfo(book);// display all books
               }
           }
           Console.ReadKey();
       }

   }