How to convert an UTF-8 String to Big5 String

I tried the following code (strUTF8 contains UTF-8 characters):
String s = new String(strUTF8.getBytes(), "UTF-8");
byte[] big5bytes = s.getBytes("Big5");
String strResult = new String(big5bytes, "Big5");

but the strResult is not in Big5 format, why?

>>but the strResult is not in Big5 format, why?

How are you determining this? For instance, if you're viewing the result in a Windows console, it won't support that encoding

Try to view it with a Swing component with its Font set to one that supports Big5 characters

>>but the strResult is not in Big5 format, why?

Why did you post that comment after using the same code principle as in the comment you marked as the answer?