Java IP Address to Int ipv4ToInt(String addr)

Description

ipv To Int

License

Open Source License

Declaration

public static int ipv4ToInt(String addr) throws UnknownHostException 

Method Source Code

//package com.java2s;
/*/*from  ww  w  . j  a v  a 2 s . co  m*/
 * Copyright (c) 2015 Yale University and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

import java.net.Inet4Address;

import java.net.InetAddress;
import java.net.UnknownHostException;

public class Main {
    public static int ipv4ToInt(String addr) throws UnknownHostException {
        Inet4Address a = (Inet4Address) InetAddress.getByName(addr);
        byte[] b = a.getAddress();
        int addrInt = ((b[0] & 0xFF) << 24) | ((b[1] & 0xFF) << 16)
                | ((b[2] & 0xFF) << 8) | ((b[3] & 0xFF) << 0);
        return addrInt;
    }
}

Related

1. IpToInt(String strIp)
2. ipToInteger(String ip)
3. IPV4AddressStrToInteger(String ipAddressStr)
4. IPV4AddressToInteger(byte[] addr)
5. ipV4ToInt(String addr)
6. ipv4ToInt(String address)