Program to reverse the hexadecimal value of elements in a byte array

public class ReverseHexaofByteArray

{

            protected static final byte[] Hexhars =

            {

                        '0', '1', '2', '3', '4', '5',

                        '6', '7', '8', '9', 'a', 'b',

                        'c', 'd', 'e', 'f'

            };

            public static String byteArrayToHexString(byte[] b)

            {                       

StringBuilder st = new StringBuilder(2 * b.length);

                        for (int j = b.length - 1; j > -1; j --)

                        {

                                    int w = b[j] & 0xff;

                                    st.append((char) Hexhars[w >> 4]);

                                    st.append((char) Hexhars[w & 0xf]);

                                    System.out.println(st.toString());

                        }

                        return st.toString();

            }

            public static void main(String[] args)

            {

                        byte[] oBs =

                        {

                                    65, 55, 88

                        };

                        String strResult = byteArrayToHexString(oBs);

                        System.out.println(strResult);

            }

}