gfh

topic means one to many relation ship and queue in the sence
one to one relation ship

sorry when i was gone through JMS
i found one to one is Queue(i.e, poin to point)
topic is sender and publisher(i.e, one to many)

JMS Topic is a JMS managed object used to manage message 
comminucation between publisher ( sender of message) and 
subscriber ( receiver of message).

Queue is JMS managed object used for holding messages 
waiting for subscribers to consume. When all subscribers 
consumed the message , message will be removed from queue.

To put an anology with email system consider all emails 
with subject 'Offers from Tesco Stores'. This subject is 
called topic. If there are multiple messages of same 
subject headings, it will be called as queue, waiting to be 
read.

1.After reciving message from JMS, byusing Queue connection 
factory can send it to exact mdb, i,e point to point.

2.After reciving message from JMS, byusing Topic connection 
factory can send it to one r multiple mdb's, i,e Publish to 
Subcribe.