net.dns
Class Dns

java.lang.Object
  net.dns.Dns

public class Dns
extends java.lang.Object

Constructor Summary

Dns()

Method Summary

static java.lang.String	getHostName(java.lang.String s) get the host name for this IP addBk.address.
static java.net.InetAddress	getLocalHost()
static byte[]	getNumericAddress(java.lang.String name) map the host name to an IP addBk.address.
static void	main(java.lang.String[] args)
static void	print(byte[] IP) print out a well formatted dot notation for an array of byte.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Dns

public Dns()

Method Detail

getLocalHost

public static java.net.InetAddress getLocalHost()
                                         throws java.net.UnknownHostException

Throws:

java.net.UnknownHostException

main

public static void main(java.lang.String[] args)
                 throws java.net.UnknownHostException

Throws:

java.net.UnknownHostException

getHostName

public static java.lang.String getHostName(java.lang.String s)

get the host name for this IP addBk.address.

getNumericAddress

public static byte[] getNumericAddress(java.lang.String name)

map the host name to an IP addBk.address. return the address of the fully qualified domain name. For example: 192.68.1.90 = show.docjava.com.com Failure occurs if the DNS is down!

print

public static void print(byte[] IP)

print out a well formatted dot notation for an array of byte. For example: 192.168.1.1