inet address example(socket)

package com.opensource.socket;

import java.net.Inet4Address;

import java.net.Inet6Address;

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.net.UnknownHostException;

import java.util.Enumeration;

public class InetAddressExample

{

/**

* @param args

*/

public static void main(String[] args)

{

try

{

Enumeration<NetworkInterface> interfaceList = NetworkInterface.getNetworkInterfaces();

if (interfaceList == null)

{

System.out.println("no interfaces found.");

}

else

{

while (interfaceList.hasMoreElements())

{

NetworkInterface iface = interfaceList.nextElement();

System.out.println("Interface:" + iface.getName());

Enumeration<InetAddress> addrList = iface.getInetAddresses();

if (!addrList.hasMoreElements())

{

System.out.println("no address for this interface.");

}

while (addrList.hasMoreElements())

{

InetAddress address = addrList.nextElement();

System.out.print("\tAddress "

+ ((address instanceof Inet4Address ? "(v4)" : (address instanceof Inet6Address ? "(v6)"

: "(?)"))));

System.out.println(": " + address.getHostAddress());

}

}

}

}

catch (SocketException e)

{

System.out.println("SocketException:" + e);

}

for (String host : args)

{

try

{

System.out.println(host + ":");

InetAddress[] addressList = InetAddress.getAllByName(host);

for (InetAddress address : addressList)

{

System.out.println("\t" + address.getHostName() + "/" + address.getHostAddress());

}

}

catch (UnknownHostException e)

{

System.out.println("UnknownHostException:" + e);

}

}

}

}