Get Hostname from a given IP address in Java

IPAddressDemo.java

import java.net.*;
import java.io.*;
public class IPAddressDemo 
{
    public static void main(String[] args) throws IOException
    {
        System.out.println("Type the IP Address: ");
        BufferedReader readIP=new BufferedReader(new InputStreamReader(System.in));
        String ipaddress=readIP.readLine();
        try{
            InetAddress host= InetAddress.getByName(ipaddress);
            System.out.println("The hostname for "+ipaddress+" is: "+host.getHostName());
        }
        catch(UnknownHostException e)
        {
            System.out.println("Host name not found for given IP Address");
        }
    }
}