jdbc-oracle connection problems

When I try to connect to the oracle database with the jdbc application the IOException - network adapter could not stablish the connection. How can I solve this problem and prevent from this Exception.
[222 byte] By [dubey_dharmendra] at [2007-9-26 1:40:48]
# 1
hi,what dirver you are using? from your error i suspect you are using a thin driver?please let me know so that we can arrive at a solution.regards srini
vams00 at 2007-6-29 2:31:38 > top of Java-index,Database Connectivity,Java Database Connectivity (JDBC)...