December 2001
Intermediate to advanced
416 pages
8h 16m
English
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2.1. Our First Independent Class
A class may represent an independent abstraction, or it may represent a specialization of a more general abstraction. For example, FileStream and MemoryStream are both specialized class definitions of the System.IO namespace Stream class. A stream represents a general flow of data either into or out of our program. It is an abstract class because although it defines the behavior of a stream (the public interface); it does not provide a complete implementation. The completion of the stream implementation is left to the more specialized file and memory stream classes, which define the input/output medium. Both the file and the memory stream classes are called subtypes of the stream class type. This type/subtype ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.