static void Main(string[] args)
{
// Incorrect reader
var book = new PDFBook();
var reader = new EBookReader(book);
reader.OpenReader();
// Correct reader
var mobiBook = new CorrectMobiBook();
var epubBook = new CorrectEpubBook();
var pdfBook = new CorrectPDFBook();
var readerForMobiBook = new CorrectEbookReader(mobiBook);
readerForMobiBook.ReadBook();
var readerForPDFBook = new CorrectEbookReader(pdfBook);
readerForPDFBook.ReadBook();
var readerForEpubBook = new CorrectEbookReader(epubBook);
readerForEpubBook.ReadBook();
}
public EBookReader(PDFBook book)
{
this.book = book;
}