Looking for sample code to create my own pub/sub!

I am a new bee in JMS. So I would really appreciate if
some one could give me some hint to start up with my school project. I am looking for a sample Java code that will:
For the Publisher:
1. Connect to a broker [create it, if it does not exist]
2. Create a publisher/destination.
3. Create a pub-sub queue
4. Publish a message
5. Ack or Nak depending on if the subscriber got or did not get the message.
For the Subscriber:
1. Connect to a broker [create it, if it does not exist]
2. Subscribe to the broker
3. Subscribe to the Queue
4. Show an received messages on the console.
Here are the command line params for both the Publisher and subscriber:
runPub 127.0.0.1:7676 myTestBroker myQueue "this is my message"
runSub 127.0.0.1:7676 myTestBroker myQueue
Please tell me if there are similar java code that will do all this and work with ANY JMS compatible client. i.e. I should not have to use the Admin tool of any JMS Server (MQSeries, iPlanet, SonicMQ etc etc). The code should follow the JMS spec and do this programmatically.
Thank you very very much in advance for doing this great favor.
With regards,
Amir.

Thanks a lot for that hint. I think that's a great tutorial for a beginner. I could compile those sample codes from chapter 4 with out any problem, but could not run it. I also installed j2sdkee1.3.1 and updated my classpath according to the spec. But when I tried to run the "j2ee -verbose" command it was giving me the following error message:
ERROR: Set J2EE_HOME before running this script.
Any advise for me that I should follow next. Thanks again.

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trnasaction code to learn for sample codes about trees and containers

hi check this....,
REPORT Ztree_TEST_PGM.
Type-pools : fibs,stree.
data : t_node type snodetext.
data : node_tab like t_node occurs 0 with header line.
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node_tab-nlength = '7'.
node_tab-color = '4'.
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node_tab-text = 'Hello'.
node_tab-tlength ='5'.
node_tab-tcolor = 3.
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node_tab-nlength = '5'.
node_tab-color = '1'.
node_tab-text = 'Hello'.
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TABLES
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DATA: type_mapping TYPE stree_ctl_type_mapping_tab.
DATA: wa_type TYPE stree_ctl_type_mapping.
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CALL FUNCTION 'RS_TREE_LIST_DISPLAY'
EXPORTING
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A list of other function modules that can also be used to construct tree reports:
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RS_TREE_AUTOMATIC_REFRESH
RS_TREE_COMPRESS                 Hide subtree(s)
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RS_TREE_DELETE_NODE              Delete node with associated sub-tree
RS_TREE_EXPAND                   Expand subtree
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RS_TREE_GET_CURRENT_TREE         Get structure information for displayed hierarchy
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RS_TREE_GET_NODE_BY_NAME         Get node for specified node name
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RS_TREE_LIST_DISPLAY             Display hierarchy
RS_TREE_MODIFY_NODE
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RS_TREE_SET_CURRENT_LAYOUT       Set layout with marked cursor position
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RS_TREE_SLEEP
RS_TREE_SORT_CHILDREN
regards,
venkat.

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