class MacAddress {

	public static MacAddress broadcast() {
		if (broadcast == null) {
			byte[] pole = new byte[6];
			for (int i = 0; i < 6; i++) {
				pole[i] = (byte) 255;
			}
			broadcast = new MacAddress(pole);
		}
		return broadcast;
	}

	public  MacAddress(String address);
	public  MacAddress(String address, char delimiter);
	public  MacAddress(byte[] representation);

}