using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace LibraryManagment { class Program {// private static int userInput;// need varaible to capture user input = int public static string Title { get; private set; } public static bool IsChecked { get; private set; } //Implement a menu system that allows users to add books, check out books, //and check in books using the console. Use Console.ReadLine() ///to capture user input and Console.WriteLine() for output. static void Main(string[] args) {// provides a cosole interaction for a user while (IsChecked) { Console.WriteLine("\nMenu\n" + "1)Add book\n" + "2)Check Out Book\n" + "3)Check In Book\n" + "4)Exit\n"); Console.Write("Choose your option from menu :"); int userInput = int.Parse(Console.ReadLine); if (userInput == 1) { Books.AddBook(); // need to create a variable } else if (userInput == 2) { CheckOut(); } else if (userInput == 3) { CheckIn(); } else if (userInput == 4) { Console.WriteLine("Thank you"); Exit; } } } } //Create a base class Book public abstract class Book // create a base cass Book {//with properties for Title (string), Author (string), and IsCheckedOut (bool). //Include a constructor to set the title and author, and initialize IsCheckedOut to false. public string Title { get; set; } public string Author { get; set; } public bool IsChecked = false; // and initialize IsCheckedOut to false. // construtor , always has the same name as the class. , no return type, this creates the object with default vales Book(string Title, string Author, bool IsChecked) { Title = this.Title; Author = this.Author; IsChecked = this.IsChecked; } virtual public void CheckOut() {// this refers to the current instance of the class if (!this.IsChecked)// not equal { Console.WriteLine($"The book { Title } has been checked out, "); this.IsChecked = true;// the book is checked out } } virtual public void CheckIn() { if (this.IsChecked)// if the book is checked in { Console.WriteLine($"The book { Title } has been checked in. "); this.IsChecked = false;// the book is checked out } } // static class LibraryCatalog that manages a collection of books. Use a static list to store instances of Book. public static class LibraryCatalog { //Use a static list to store instances of Book - to store a list of the books public static List booksList = new List(); public static List booksListB = new List(); // methods to manage the books public static void AddBook(Book book) { booksList.Add(book); } // How are we using the String as the title public static void CheckOutBook(string title) { booksListB.Remove(title); Console.WriteLine("Book checked out successfully "); // else or Console.WriteLine("Book not found"); // "Book not found". } public static void checkInBook(string title) { booksListB.Add(title); Console.WriteLine("Book checked in successfully. "); } // Ensure methods provide feedback, e.g., // "Book checked out successfully" or "Book not found". } } }

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace LibraryManagment { class Program {// private static int userInput;// need varaible to capture user input = int public static string Title { get; private set; } public static bool IsChecked { get; private set; } //Implement a menu system that allows users to add books, check out books, //and check in books using the console. Use Console.ReadLine() ///to capture user input and Console.WriteLine() for output. static void Main(string[] args) {// provides a cosole interaction for a user while (IsChecked) { Console.WriteLine("\nMenu\n" + "1)Add book\n" + "2)Check Out Book\n" + "3)Check In Book\n" + "4)Exit\n"); Console.Write("Choose your option from menu :"); int userInput = int.Parse(Console.ReadLine); if (userInput == 1) { Books.AddBook(); // need to create a variable } else if (userInput == 2) { CheckOut(); } else if (userInput == 3) { CheckIn(); } else if (userInput == 4) { Console.WriteLine("Thank you"); Exit; } } } } //Create a base class Book public abstract class Book // create a base cass Book {//with properties for Title (string), Author (string), and IsCheckedOut (bool). //Include a constructor to set the title and author, and initialize IsCheckedOut to false. public string Title { get; set; } public string Author { get; set; } public bool IsChecked = false; // and initialize IsCheckedOut to false. // construtor , always has the same name as the class. , no return type, this creates the object with default vales Book(string Title, string Author, bool IsChecked) { Title = this.Title; Author = this.Author; IsChecked = this.IsChecked; } virtual public void CheckOut() {// this refers to the current instance of the class if (!this.IsChecked)// not equal { Console.WriteLine($"The book { Title } has been checked out, "); this.IsChecked = true;// the book is checked out } } virtual public void CheckIn() { if (this.IsChecked)// if the book is checked in { Console.WriteLine($"The book { Title } has been checked in. "); this.IsChecked = false;// the book is checked out } } // static class LibraryCatalog that manages a collection of books. Use a static list to store instances of Book. public static class LibraryCatalog { //Use a static list to store instances of Book - to store a list of the books public static List booksList = new List(); public static List booksListB = new List(); // methods to manage the books public static void AddBook(Book book) { booksList.Add(book); } // How are we using the String as the title public static void CheckOutBook(string title) { booksListB.Remove(title); Console.WriteLine("Book checked out successfully "); // else or Console.WriteLine("Book not found"); // "Book not found". } public static void checkInBook(string title) { booksListB.Add(title); Console.WriteLine("Book checked in successfully. "); } // Ensure methods provide feedback, e.g., // "Book checked out successfully" or "Book not found". } } }

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