Detect OS Sleep and Wake Up events in Java

Question

Is there a way for a Java program to detect when the operating system is about to go to sleep, or failing that, at least detecting a wake up?

The actual problem is t

Answer 1

You could detect the wakeup by periodically comparing the current system time to the previous system time.

Edit: here's an example that looks like it would help you detect when the machine is going to sleep: http://www.codeguru.com/cpp/w-p/system/messagehandling/article.php/c6907