Hi Karthik,
All good aspects of java are including in sap .I hope this will help you
http://help.sap.com/abapdocu_70/en/ABAPCALL_TRANSFORMATION.htm
http://scn.sap.com/people/patrick.baer/blog/2005/02/24/abap-serialization--part-i-quick-n-easy
Regards,
Sreenivas.