A java class to find the specifics of a given hostname

DNSLookup.java

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * DNSLookup is a class which demonstrates several features of <a href="http://docs.oracle.com/javase/7/docs/api/java/net/InetAddress.html">java.net.InetAddress</a>
 * @author Jurrian Fahner
 */
public class DNSLookup {
    /**
     * Prints the details of a given hostname
     */
    public static void printDetails(String hostname) {
        try {
            InetAddress[] inetAddress = InetAddress.getAllByName(hostname);
            for (InetAddress item:inetAddress) {
                System.out.println("Which Host:" + whichHost);
                System.out.println("Canonical Host Name:" + inetAddress.getCanonicalHostName());
                System.out.println("Host Name:" + inetAddress.getHostName());
                System.out.println("Host Address:" + inetAddress.getHostAddress());
                System.out.println("Loopback Address: " + inetAddress.getLoopbackAddress());
            }
        } catch (UnknownHostException ex) {
            Logger.getLogger(DNSLookup.class.getName()).log(Level.SEVERE, null, ex);
        }        
    }


    public static void main(String[] args) {
        if (args.length == 0) {
            System.out.println("No hostname supplied...");
            System.out.println("Usage: DNSLookup HOSTNAME");
        } else {
            printDetails(args[0]);    
        }
        
    }
}