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}