Is Observer pattern implemented using Multi-Thread in Java

[Matt Brown]

It is built in java.util.Observer interface and java.util.Observerable class. It seems it has to be implemented
using multi threads in java. Am I correct?

[Jan Cumps]

Hi Matt, Why do you think that?

From the javadoc:

Note that this notification mechanism is has nothing to do with threads and is completely separate from the wait and notify mechanism of class Object.

[Arnold Reuser]

You can read the code if you would like to : http://kickjava.com/src/java/util/Observable.java.htm
Nothing related to multi-threaded.