BigIntiger toByteArray

providing that s = BigIntiger ("60830453755921259750972507581")

String result = new String(s.toByteArray(), "UTF-8");

result becomes "\u0000蚞ȊŽ"

why is "\u0000" there, what does it mean ?

besides I'm unable to reproduce 60830453755921259750972507581 trying with:

String s = "蚞ȊŽ";
String s1 = new String(s.getBytes(),"UTF-8");
// or String s1 = new String(s.getBytes());
byte[] bytes = s.getBytes();
BigInteger m = new BigInteger(bytes);


Any thougt welcome.

"\u0000" is a null terminator character. If you take the string "\u0000蚞ȊŽ" instead of "蚞ȊŽ" and convert that back to a BigInteger then you will see that you've recreated your original number.

I can't say exactly why it's there but if you look at the implementation for the String constructor that you're using you should be able to pin it down.