Robert Love

Realize you won't master data structures until you are working on a real-world problem and discover that a hash is the solution to your performance woes.

Zero-length arrays are useful only in cases where you have a large structure, which contains a field of dynamic length, and you need to share that structure across program or even computer boundaries.

Mobile devices such as Android and the iPhone achieve their battery life largely because they can aggressively and quickly enter into and exit from sleep states. GPS prevents this.

GPS is expensive because it is a very slow communication channel - you need to communicate with three or four satellites for an extended duration at 50 bits per second.

Android's user-space is so different from stock Linux, you can easily say that Android is not in any way a Linux system, except for the kernel.

Learn when and how to use different data structures and their algorithms in your own code. This is harder as a student, as the problem assignments you'll work through just won't impart this knowledge. That's fine.