The class java.net.InetAddress represents an Internet Protocol (IP) address. You can use this class to find the IP address of a host using the hostname. The following code demonstrates this:
try
{
java.net.InetAddress inetAdd =
java.net.InetAddress.getByName("www.ibm.com");
System.out.println ("IP Address is : " + inetAdd.getHostAddress());
}
catch(catch(java.net.UnknownHostException uhe)
{
//handle exception
}