2014年5月11日 星期日

[ Java ] : Bytes to hex string

public static String bytesToHex(byte[] bytes) {
    char[] hexArray = "0123456789ABCDEF".toCharArray();
        char[] hexChars = new char[bytes.length * 3];
        for ( int j = 0; j < bytes.length; j++ ) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 3] = hexArray[v >>> 4];
            hexChars[j * 3 + 1] = hexArray[v & 0x0F];
            hexChars[j * 3 + 2] = '-';
        }
        return new String(hexChars);
    }