This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
Symbian OS runs PersonalJava and in the future, it will run the J2ME Personal Profile. You should search those two on the web. There is a book named "Wireless Java for Symbian Devices" by Jon Allin and published by Wiley (ISBN 0471486841). It is somewhat old now but still useful if you want the basics.