static void Main(string[] args)
{
//本棚(BookShelf)を作成
BookShelf bookShelf = new BookShelf();
//本棚(BookShelf)に本(Book)を追加
bookShelf.appendBook(new Book("あいうえお"));
bookShelf.appendBook(new Book("かきくけこ"));
bookShelf.appendBook(new Book("さしすせそ"));
bookShelf.appendBook(new Book("たちつてと"));
IIterator it = bookShelf.Iterator();
IIterator rit = bookShelf.ReverseIterator();
Console.WriteLine("====順番に取得====");
while (it.HasNext())
{
Book book = (Book)it.Next();
Console.WriteLine(book.Name);
}
Console.WriteLine("====逆順で取得====");
while (rit.HasNext())
{
Book book = (Book)rit.Next();
Console.WriteLine(book.Name);
}
// 実行が一瞬で終わって確認できないので、キーの入力を待ちます
Console.ReadLine();
}
public object Next()
{
Book book = BookShelf.GetBookAt(this.Index);
this.Index--;
return(book);
}
public bool HasNext()
{
if (Index < BookShelf.GetLength())
{
return(true);
}
else
{
return(false);
}
}
public ReverseBookShelfIterator(BookShelf bookShelf)
{
this.BookShelf = bookShelf;
this.Index = bookShelf.GetLength() - 1;
Console.WriteLine("今の数" + this.Index);
}
public BookShelfIterator(BookShelf bookShelf)
{
this.BookShelf = bookShelf;
this.Index = 0;
}