January 2011
Intermediate to advanced
1648 pages
70h 30m
English
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Polymorphism
The final pillar of object-oriented programming is known as polymorphism, from the Greek word that stands for “many shapes.” In fact, when talking about inheritance, we have already seen most of the polymorphic principles illustrated at the level of member declarations. More specifically, the virtual and override keywords are at the heart of the principle of polymorphism. What we haven’t talked about yet is the different uses it allows. So far, we’ve used virtual and override to be able to specialize a class:
To use this counter, we could simply write the following:
However, in addition to this, the principle of polymorphism enables ...
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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.