MOJAB 24

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        BookList bookList = new BookList();

        bookList.AddBook("The Great Gatsby");
        bookList.AddBook("To Kill a Mockingbird");
        bookList.AddBook("1984");

        bookList.DisplayBooks();

        bookList.RemoveBook("To Kill a Mockingbird");

        bookList.DisplayBooks();

        Console.WriteLine("Is '1984' in the list? " + bookList.ContainsBook("1984"));
        Console.WriteLine("Is 'Moby Dick' in the list? " + bookList.ContainsBook("Moby Dick"));
    }
}

class BookList
{
    private List<string> books = new List<string>();

    public void AddBook(string book)
    {
        books.Add(book);
    }

    public void RemoveBook(string book)
    {
        books.Remove(book);
    }

    public bool ContainsBook(string book)
    {
        return books.Contains(book);
    }

    public void DisplayBooks()
    {
        Console.WriteLine("Books in the list:");
        foreach (string book in books)
        {
            Console.WriteLine(book);
        }
        Console.WriteLine();
    }
}