java question

Okay, I'm a java noob, but I need a serious answer please. How can I get data about current dl/ul speed, particularly on a non-java socket? (I wanna write myself some sort of a speed meter)
Any suggestions?

>>1
To get that, you need to access the operating system somehow, in a way that's not too usual. I don't know how to do it in either Linux or Win32, but I know one thing: you don't do that from Java. For that, use C.