send data from a thread to an activity

I'm creating an app that is a sort of client- multithreaded server.

The problem that I'm facing with is the next one:

The server is multithreaded and that means that it receives the data fr开发者_C百科om the clients in a thread(a separate class which is not a inner class for an activity) and I wanna send that data to a class that extends activity!!!

Is that possible?And if yes,how??

Thank u!

UPDATE:My thread is a Worker thread it implements Runnable and the data needs to ne send to a different class that extends activity!!!

Yes, you can send a Message from the thread back to the Activity using a Handler. This article may be helpful.