Java InetAddress : Represent IP address

InetAddress represents IP address. Many Java networking classes use this class.

import java.net.InetAddress;
import java.net.UnknownHostException;

public class InetAddressUtil {

 public static InetAddress getByName(String hostName) {
  try {
   return InetAddress.getByName(hostName);
  } catch (UnknownHostException e) {
   System.out.println(e);
  }
  return null;
 }
 
}

import java.net.InetAddress;

public class Main {
 public static void main(String args[]) {
  InetAddress address = InetAddressUtil.getByName("www.google.com");

  System.out.println(address);
 }
}

Output

www.google.com/64.233.169.99

InetAddress class provides number of methods to get

a.   hostname from the IP address.

b.   all address associated with hostname

c. InetAddress object for local host

d. Java Get RawIP address

e. Find IPaddress is IPV6 or IPV4
f. Reachability Of Nodes

There are several usefull methods other than mentioned above, go through the javadoc for InetAddress class for more information.

Note
Always use hostname than IP addresses, since hostnames change rarely.

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