How to decode Oracle hextoraw value to JAVA (Big5)

I this use oracle DB and select my table like this.

select rawtohex('嫺嫺') from dual;

F9DCF9DC

But when I use jdbc to select this value , and try to trans [F9DCF9DC] to chinese words, I don't know how to do it.

please get me some advice. Thanks a lot. m(_ _)m