This chapter has provided coverage of both arrays and collections. You should have a good idea of how to utilize single-dimension arrays, multidimensional arrays, and jagged arrays. In addition, you should be able to compare and contrast the features and drawbacks of using arrays or collections. This chapter also provided an overview of some of the stock collection classes that are included with the .NET Framework, such as the ArrayList, SortedList, Queue, Stack, and more. As you continue through the book, you will be able to use the information in this chapter to utilize the powerful features of both arrays and collections in creating professional applications.