August 2017
Beginner
566 pages
12h 34m
English
Content preview from Beginning C# 7 Hands-On - The Core Language
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Lesson review
So, to review, you have an interface, which is essentially a contract, and the purpose is to bind things together to some extent. The relationship between classes and interfaces is that it "can be used as follows," so a Person reference variable can be used as a printable object, and also, likewise a Document reference variable can be used as a printable object.
Once you have an interface when you implement it, the members have to be implemented or you're going to get an error. IPrintable objects will be underlined in red. With this in place, you can then make objects of the type IPrintable, and you can make lists that store printable objects and other things.
The complete version of Default.aspx.cs for this lesson, including ...
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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.
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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.