// network/LocalHost.java

// (c)2016 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://mindviewinc.com/Books/OnJava/ for more book information.

// The local loopback IP address

import java.net.*;

public class LocalHost {

public static void

main(String[] args) throws Exception {

InetAddress

local1 = InetAddress.getByName(null),

local2 = InetAddress.getByName("localhost"),

local3 = InetAddress.getByName("127.0.0.1"),

local4 = InetAddress.getLoopbackAddress();

System.out.println(local1);

System.out.println(local2);

System.out.println(local3);

System.out.println(local4);

}

}

/* Output:

localhost/127.0.0.1

localhost/127.0.0.1

/127.0.0.1

localhost/127.0.0.1

*/