Java program to get IP address

In this example we are gonna see how to get IP address of a System. The steps are as follows:

1) Get the local host address by calling getLocalHost() method of InetAddress class.
2) Get the IP address by calling getHostAddress() method.

import java.net.InetAddress;

class GetMyIPAddress
{
   public static void main(String args[]) throws Exception
   {
      /* public static InetAddress getLocalHost()
       * throws UnknownHostException: Returns the address 
       * of the local host. This is achieved by retrieving 
       * the name of the host from the system, then resolving 
       * that name into an InetAddress. Note: The resolved 
       * address may be cached for a short period of time.
       */
      InetAddress myIP=InetAddress.getLocalHost();
 
      /* public String getHostAddress(): Returns the IP 
       * address string in textual presentation.
       */
      System.out.println("My IP Address is:");
      System.out.println(myIP.getHostAddress());
  }
}

Output:

My IP Address is:
115.242.7.243

Reference:
InetAddress javadoc