Java APIs

Hi all

When compiling my program
Following errors getted:-
1.unreported exception java.net.UnknownHostException; must be caught or declared to be thrown
InetAddress inet = InetAddress.getByName("www.davidreilly.com");
2.exception java.net.MalformedURLException is never thrown in body of corresponding try statement
catch (MalformedURLException e){}



This is the part of my code in which errors occur

try {
		  InetAddress inet = InetAddress.getByName("www.davidreilly.com");
		   System.out.println ("IP  : " + inet.getHostAddress());
		}
		  catch (MalformedURLException e){}

Please help me to correct and why unreported exception java.net.UnknownHostException; must be caught or declared to be thrown if I dont use try and catch statements
Thanks in advance.