In this chapter you took a somewhat detailed look at some of the collections made available by the .NET Framework class library. You started by looking at the IEnumerable interface, which is common to most collections. Next, you covered all the common collections. You finished off by examining a few of the more specialized collections provided by the .NET Framework class library.
In the next chapter, you're going to look at how the .NET Framework addresses the important areas of file I/O.