Question

Create the Class Book with the following attributes: Book ID, Title, Authors, Unit Price. Print the current details of the book. Add a behavior to modify the price and display the updated book details. Display the total Amount to be paid for each Book, using unit price & 12% tax. Implement using OO concepts.

Answer 1

using System;
using System.Collections.Generic;
namespace Q44780
{
class Program
{
static void Main(string[] args)
{
Book bk = new Book(25333, "By word and deal", 14.16, "Valentin Pikhul");
Console.WriteLine(bk);
bk.Price = 15.00;
Console.WriteLine("\n\n"+bk);
bk.Price = -15.00;
Console.WriteLine("\n\n" + bk);
Console.ReadKey();
}
}
}
class Book
{
uint book_id;
public uint BookID
{
get { return book_id; }
}
string title;
public string Title
{
get { return title; }
}
double price;
public double Price
{
get { return price; }
set
{
price = value >= 0 ? value : 0;
}
}
List<string> authors;
public Book(uint book_id, string title, double price, params string[] authors)
{
this.book_id = book_id;
this.title = title;
this.Price = price;
this.authors = new List<string>();
foreach (var m in authors) this.authors.Add(m);
}
public override string ToString()
{
string athr = "";
foreach (var m in authors) athr +="\n "+ m;
return
String.Format(" Book ID: {0}\n Title: {1}\n Price: {2,7:c}\n Authors: ", book_id, title, price) +
athr + String.Format("\n 12% tax: {0,7:c}\nTotal price: {1,7:c}", price * 0.12, price * 1.12);
}
}
/*
* Create the Class Book with the following attributes:
* Book ID, Title, Authors, Unit Price.
* Print the current details of the book.
* Add a behavior to modify the price and display the updated book details.
* Display the total Amount to be paid for each Book, using unit price & 12% tax.
* Implement using OO concepts.
*/