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);
}
}
}
}