Concatenate X byte array onto one

concatenatebytearray.java

byte[] concat(byte[]...arrays)
    {
        // Determine the length of the result array
        int totalLength = 0;
        for (byte[] array : arrays) {
            totalLength += array.length;
        }

        // create the result array
        byte[] result = new byte[totalLength];

        // copy the source arrays into the result array
        int currentIndex = 0;
        for (byte[] array : arrays) {
            System.arraycopy(array, 0, result, currentIndex, array.length);
            currentIndex += array.length;
        }

        return result;
    }