How to resolve HostName to Address using Java?

Demo.java

import java.net.*; public class Demo { public static void main(String args[]) { if (args.length != 1) { System.err.println ("Syntax - Demo host"); System.exit(0); } System.out.println ("Resolving " + args[0]); try { InetAddress addr = InetAddress.getByName(args[0]); System.out.println ("IP address : " + addr.getHostAddress() ); System.out.println ("Hostname : " + addr.getHostName()); } catch (UnknownHostException e) { System.out.println ("Error - unable to resolve hostname" ); } } }

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Happy Exploring!