February 2014
Intermediate to advanced
1560 pages
50h 21m
English
Content preview from Professional C# 5.0 and .NET 4.5.1
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Chapter 5Generics
WHAT’S IN THIS CHAPTER?
- An overview of generics
- Creating generic classes
- Features of generic classes
- Generic interfaces
- Generic structs
- Generic methods
WROX.COM CODE DOWNLOADS FOR THIS CHAPTER
The wrox.com code downloads for this chapter are found at www.wrox.com/go/procsharp on the Download Code tab. The code for this chapter is divided into the following major examples:
- Linked List Objects
- Linked List Sample
- Document Manager
- Variance
- Generic Methods
- Specialization
GENERICS OVERVIEW
Since the release of .NET 2.0, .NET has supported generics. Generics are not just a part of the C# programming language; they are deeply integrated with the IL (Intermediate Language) code in the assemblies. With generics, you can create classes and methods that are independent of contained types. Instead of writing a number of methods or classes with the same functionality for different types, you can create just one method or class.
Another option to reduce the amount of code is using the Object class. However, passing using types derived from the Object class is not type safe. Generic classes make use of generic types that are replaced with specific types as needed. This allows for type safety: the compiler complains if a specific type is not supported with the generic class.
Generics are not limited to classes; in this chapter, you also see generics with interfaces and methods. Generics with delegates can be found in Chapter 8, “Delegates, Lambdas, and Events.”
Generics ...
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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.