Java IP Address to Long ip2long(String ip)

Description

iplong

License

Open Source License

Declaration

public static long ip2long(String ip) throws NumberFormatException, IllegalArgumentException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    public static long ip2long(String ip) throws NumberFormatException, IllegalArgumentException {
        String[] parts = ip.split("\\.");
        long result = 0;
        int power = 0;
        if (parts.length != 4) {
            throw new IllegalArgumentException("Invalid IP format");
        }/*w  w w.  j a v  a  2s. c  o  m*/
        for (int i = parts.length; i > 0; i--) {
            int parseInt = Integer.parseInt(parts[i - 1]);
            if (parseInt < 0 || parseInt > 255) {
                throw new IllegalArgumentException("Invalid IP address");
            }
            result += Math.pow(256, power++) * parseInt;
        }
        return result;
    }
}

Related

1. convertIPS2Long(String ip)
2. convertIpString2Long(String IP)
3. ip2Long(final String ip)
4. ip2long(String ip)
5. ip2long(String ip)
6. ip2Long(String ip)
7. ip2long(String ip)
8. ip2long(String ip)