I am trying to convert byte[] to Hex string and same Hex string to byte[] in android , data got mismatched.

Ex :

Received byte[] data : **[B@b39c86a**

converted Hex string : **8be897cc3c4d9e5dd6a6bbd106d8e8d487691b56**

When I decode the hex string, I am getting **[B@ea6d15b**, but its should be **[B@b39c86a**

I am using below code to convert.

```
public String byte2hex(byte[] a) {
        /*StringBuilder sb = new StringBuilder(a.length * 2);

        for (byte b : a)
            sb.append(String.format("%02x", b & 0xff));
        return sb.toString();*/

        String hexString = "";

        for(int i = 0; i < a.length; i++){
            String thisByte = "".format("%x", a[i]);
            hexString += thisByte;
        }

        return hexString;

    }
    public static byte[] hexStringToByteArray(String s) {
       /* int len = s.length();
        byte[] data = new byte[len / 2];
        for (int i = 0; i < len; i += 2) {
            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
                    + Character.digit(s.charAt(i + 1), 16));
        }
        return data;*/

        byte[] bytes = new byte[s.length() / 2];

        for(int i = 0; i < s.length(); i += 2){
            String sub = s.substring(i, i + 2);
            Integer intVal = Integer.parseInt(sub, 16);
            bytes[i / 2] = intVal.byteValue();
            String hex = "".format("0x%x", bytes[i / 2]);
        }

        return bytes;
    }

```