public static String convertByte2HexString(byte b){
  char u8=convertByte2Uint8(b);
  return Integer.toHexString(u8);
}

public static String convertByte2HexString ( byte b ) { char u8 = convertByte2Uint8 ( b ) ; return Integer . toHexString ( u8 ) ; }
convert byte to hex string
