This program demonstrates the InetAddress class

    

/*
   This program is a part of the companion code for Core Java 8th ed.
   (http://horstmann.com/corejava)

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.net.InetAddress;

/**
 * This program demonstrates the InetAddress class. Supply a host name as command line argument, or
 * run without command line arguments to see the address of the local host.
 * @version 1.01 2001-06-26
 * @author Cay Horstmann
 */
public class InetAddressTest
{
   public static void main(String[] args)
   {
      try
      {
         if (args.length > 0)
         {
            String host = args[0];
            InetAddress[] addresses = InetAddress.getAllByName(host);
            for (InetAddress a : addresses)
               System.out.println(a);
         }
         else
         {
            InetAddress localHostAddress = InetAddress.getLocalHost();
            System.out.println(localHostAddress);
         }
      }
      catch (Exception e)
      {
         e.printStackTrace();
      }
   }
}

Related examples in the same category

1.	Get IP
2.	Get all IP addresses
3.	Convert a hostname to the equivalent IP address
4.	Getting the Hostname of an IP Address
5.	Get canonical host name
6.	Getting the IP Address and Hostname of the Local Machine
7.	Perform Network Lookup with the InetAddress class
8.	Get hostname by a byte array containing the IP address
9.	Display multiple IP addresses
10.	Looking Up the Address of a Host
11.	Retrieve the hostname of an IP Address
12.	Retrieve the IP address of a hostname
13.	Report By Address
14.	Determine the IP address and hostname of the local machine
15.	An nslookup clone in Java
16.	Looking for Ports: 0 -- 1024
17.	Looking for Port: 1024 -- 65536
18.	Looking for Port: start from 65535
19.	A class that performs some subnet calculations given a network address and a subnet mask.
20.	Resolves string ip address and returns host name as a string
21.	Resolves hostname and returns ip address as a string
22.	Resolves ip address and returns host name as a string
23.	Check if IP address match pattern
24.	Converts IPv4 address in its textual presentation form into its numeric binary form.
25.	Convert IPv6 presentation level address to network order binary form.
26.	Finds this computer's global IP address
27.	Finds a local, non-loopback, IPv4 address
28.	Check if the specified address is a valid numeric TCP/IP address
29.	Check if the specified address is within the required subnet
30.	Check if the specified address is a valid numeric TCP/IP address and return as an integer value
31.	Convert a raw IP address array as a String
32.	Determine if the given string is a valid IPv4 or IPv6 address.
33.	A string input validator for IPs and domains.
34.	Get Current Environment Network IP

This program demonstrates the InetAddress class : IP Address « Network Protocol « Java

Related examples in the same category