newbie: join group
I'm new to the jxta community and have a newbie question.
I managed to create a subgroup of the netpeer group and would now like to join the group from another computer which also is logged into the jxta network.
I can find the group, but don't know how to join it. In the example provided on the jxta homepage, the joinGroup function expects an argument of the type PeerGroup. But how do I retrieve the PeerGroup if lets say I have the PeerGroupID?
Hope someone can help. Thank you a lot in advance.