Retrieving the IP address of a website in Java

In this tutorial, we're going to use the method java.net.InetAddress.getByName() To obtain the IP address of a website's web server in Java based on the representation of its IP address or on the domain name e.g. www.google.com.

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

public class ServerAddress {
 
 public static void main(String[] zero) throws SocketException {

 InetAddress ServerAddress; 

 try{
 ServerAddress= InetAddress.getByName("www.yahoo.fr"); 
 //domain name
 System.out.println("Yahoo server address = "+
 ServerAddress.getHostName()); 
 //Yahoo server IP address
 System.out.println("Domain name = "+
 ServerAddress.getHostName()); 
 System.out.println("The IP address of the server Yahoo.com = "+
   ServerAddress.getHostAddress()); 
 System.out.println("The IP address of the server Yahoo.fr = "+
 InetAddress.getByName("www.yahoo.fr").getHostAddress()); 
 } catch (UnknownHostException e) {
 e.printStackTrace(); 
 }
 }
}

Output:

domain name = www.yahoo.com
The IP address of the server Yahoo.com = 46.228.47.115
The IP address of the server Yahoo.fr = 77.238.184.150

getHostName(): returns the machine name for this IP address.
getHostAdress(): returns the IPv4 address of the server.

References:
Doc Oracle: InetAdress
Manipulating IP Addresses in Java
TCP Socket: Client/Server in Java

Retrieving the IP address of a website in Java

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