59 lines
1.4 KiB
C#
59 lines
1.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Stack
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{
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internal class StackBooksOfList
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{
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private NodeBook? firstBook = null;
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/// <summary>
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/// Возвращает элемент из стека
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/// </summary>
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/// <returns>Экземпляр книги</returns>
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public Book? pop()
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{
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if (firstBook == null)
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{
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return null;
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}
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else
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{
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NodeBook temp = firstBook;
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firstBook = firstBook.nextNodeBook;
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return temp.book;
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}
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}
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/// <summary>
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/// Добавление значения в стек
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/// </summary>
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/// <param name="newBook">Объект новой книги</param>
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public void push(Book newBook)
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{
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//Создание узла с книгой
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NodeBook newNode = new NodeBook();
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newNode.book = newBook;
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newNode.nextNodeBook = firstBook;
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firstBook = newNode;
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}
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public void printAll()
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{
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NodeBook temp = firstBook;
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while (temp != null)
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{
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Console.WriteLine(temp.book.name);
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temp = temp.nextNodeBook;
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}
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}
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}
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}
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