This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
Not only does the import statement not automatically include subpackages, Java doesn't have a concept of subpackages in general - so also with regard to other aspects, packages that start with the same name should just be regarded as completely separate packages without a super-sub relationship between them.