Let's know how to get the IP Address of a website on Internet by using getByName() method which takes host name as argument and returns InetAddress which is nothing but a IPAddress of that server. Let's see the following program: import java.io.*;

import java.net.*;
class Address
{
	public static void main(String args[]) throws IOException
	{
		BufferedReaderbr=new BufferedReader(new InputStreamReader(System.in));
		System.out.println("enter a website name");
		String s=br.readLine();
		try
		{
			InetAddress i=InetAddress.getByName(s);
			System.out.println("the ip address is"+i);
		}
		catch(UnknownHostException u)
		{
			System.out.println("website not found");
		}
	}
}

Output:
enter a website name
www.gmail.com
theip address iswww.gmail.com/74.125.228.246