Sams Teach Yourself Visual C++® .NET in 24 Hours

Hour 16

1:	Why would you want to choose an Array object over an ArrayList object? Why would you choose an ArrayList object over an Array object?
A1:	An Array object has a set size, whereas an ArrayList object can grow as items are added to it.
2:	The Array class internally allocates contiguous blocks of memory. Does the stack and queue do the same? Why or why not?
A2:	No, they don't. Stacks and queues are implemented more like linked lists than arrays. You cannot index a Stack or Queue object in the same way you can index an Array object.
3:	What happens when you add a hash table element that has the same key to an element already in the hash table?
A3:	You will receive an ArgumentException.