Java and Unicode

Hi All,

Java supposed to store all strings internally in Unicode. In that case
what is the encoding form of Unicode (i.e. UTF-8/UTF-16/UTF-32) used ?

To be more specific -

Let us consider a string, strInput, which contains characters encoded
using Shift_JIS as encoding type.
Following code is supposed to convert it to Unicode.

String strConv = new String(strInput.getBytes(), "Shift_JIS");

My query is what would be the encoding type of the string strConv -
UTF-8/UTF-16 or UTF-32 ?

Regards,
Sourav