Java tutorial
//package com.java2s; public class Main { /** * Get the mac address bytes format by the device's bssid String format * @param bssid the device's bssid String format * @return the mac address bytes format */ public static byte[] getMacAddressBytes(String bssid) { String[] bssidStrSplit = bssid.split(":"); byte[] bssidBytes = new byte[bssidStrSplit.length]; for (int i = 0; i < bssidStrSplit.length; ++i) { String bssidStr = bssidStrSplit[i]; bssidBytes[i] = (byte) Integer.parseInt(bssidStr, 16); } return bssidBytes; } }