Iterate with for loop or while loop?

I prefer the for loop because it also sets the scope of the iterator to just the for loop.

There are appropriate uses for the while, the for, and the foreach constructs:

• while - Use this if you are iterating and the deciding factor for looping or not is based merely on a condition. In this loop construct, keeping an index is only a secondary concern; everything should be based on the condition

• for - Use this if you are looping and your primary concern is the index of the array/collection/list. It is more useful to use a for if you are most likely to go through all the elements anyway, and in a particular order (e.g., going backwards through a sorted list, for example).

• foreach - Use this if you merely need to go through your collection regardless of order.

Obviously there are exceptions to the above, but that's the general rule I use when deciding to use which. That being said I tend to use foreach more often.