public static special operator +(special spec_offer, int a) //перегрузка + постфиксная
{
special spec_offer1;
spec_offer1 = new special();
spec_offer1.bonus_num = spec_offer.bonus_num + a;
return(spec_offer1);
}
public static special operator +(int a, special spec_offer) //перегрузка + префиксная
{
special spec_offer1;
spec_offer1 = new special();
spec_offer1.bonus_num = a + spec_offer.bonus_num;
return(spec_offer1);
}
static void Main(string[] args)
{
int x, y, z, n, profit, popularity = 1; //переменные
String s1, s2, s3; //строки
Console.WriteLine("Input information about the 1 book\n"); //ввод информации о книге
Console.WriteLine("Input number of specials: ");
n = Convert.ToInt32(Console.ReadLine());
special[] spec_offer1 = new special[10];
special[] spec_offer2 = new special[10];
for (int i = 0; i < n; i++)
{
spec_offer1[i] = new special();
spec_offer2[i] = new special();
}
Console.WriteLine("Input title: ");
s1 = Console.ReadLine();
Console.WriteLine("Input author: ");
s2 = Console.ReadLine();
Console.WriteLine("Input genre: ");
s3 = Console.ReadLine();
Console.WriteLine("Input price: ");
x = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input number in stock: ");
y = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input popularity: ");
z = Convert.ToInt32(Console.ReadLine());
book_store book1 = new book_store(s1, s2, s3, x, y, z, n, spec_offer1);
book1.output();
book_store book2 = new book_store(spec_offer2);
book2.Title = "www"; //установка значений с помощью сеттера
book2.Author = "sss";
book2.Genre = "xxx";
book2.Price = 200;
book2.Num_stock = 20;
book2.Popularity = 25;
Console.WriteLine("\nSecond book (setter used)");
book2.output();
Console.WriteLine("\nNumber in stock of 1 and 2: {0}", book1.summarize(book2)); //сложение количетва двух книг
String book_genre = book1.Genre; //получение значения геттером
Console.WriteLine("First book genre is {0}, str length of genre is {1}", book_genre, book_genre.Length); //вычисление длины строки жанр
Console.WriteLine("\nFirst book");
book1.output(); //вывод
book1.sell(); //продажа
book1.output();
book1.price_rise(); //повышение цены
book1.output();
book1.rearrange(); //перестановка
book1.output();
book1.archivate(); //отправка на склад
book1.output();
book1.reduce_bonus(); //уменьшение количества бонусов
book1.output();
book1.predictable_profit(out profit); //подсчет ожидаемой прибыли через out
Console.WriteLine("\nPredictable profit: {0}", profit);
book1.predictable_popularity(ref popularity); //подсчет ожидаемой популярности через ref
Console.WriteLine("Predictable popularity: {0}", popularity);
Console.WriteLine("First book title length is {0}", book_store.title_len(book1)); //вывод значения длины строки названия
book_store.space_left = 50; //установка значения оставшегося места
Console.WriteLine("Space left in the store {0}", book_store.space_left);
special[] spec_offer0 = new special[1];
special[] spec_offer3 = new special[1];
spec_offer0[0] = new special();
spec_offer3[0] = new special();
Console.WriteLine($"\nDefault value of special offer = {spec_offer0[0].bonus_num}");
spec_offer3[0] = spec_offer0[0] + 5; //перегрузка + постфиксная
Console.WriteLine($"\nSpecial offer + 5 = {spec_offer3[0].bonus_num}");
spec_offer3[0] = 10 + spec_offer0[0]; //перегрузка + префиксная
Console.WriteLine($"10 + Special offer = {spec_offer3[0].bonus_num}");
spec_offer3[0] = spec_offer0[0]++; //перегрузка ++ постфиксная
Console.WriteLine($"Special offer ++ = {spec_offer3[0].bonus_num}");
spec_offer3[0].set_default();
spec_offer3[0] = ++spec_offer0[0]; //перегрузка ++ префиксная
Console.WriteLine($"++ Special offer = {spec_offer3[0].bonus_num}");
Console.WriteLine("\nMassive using constructor with a single parameter");
special[] spec_offer4 = new special[2];
for (int i = 0; i < 2; i++)
{
spec_offer4[i] = new special(10); //вызов конструктора с одним параметром для создания массива
}
Console.WriteLine("\nSpecial offers\n");
for (int i = 0; i < 2; i++)
{
spec_offer4[i].output();
}
}