Java convert ip to long

public long ipToLong(String ipAddress) {

	String[] ipAddressInArray = ipAddress.split("\\.");

	long result = 0;
	for (int i = 0; i < ipAddressInArray.length; i++) {

		int power = 3 - i;
		int ip = Integer.parseInt(ipAddressInArray[i]);
		result += ip * Math.pow(256, power);

	}

	return result;
  }

Source: mkyong.com

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