www.pudn.com > exercise.rar > NetworkResolverDemo.java

import java.net.*;  
import java.io.*;  
class NetworkResolverDemo  
{     public static void main(String args[])  
             {      
                   if (args.length!=1) 
                   { 
                      System.exit(0); 
				   } 
                    System. out. println("ResolverDemo: "+args[0]); 
                   try {   
                    InetAddress addr;  
                    addr=InetAddress.getByName(args[0]);  
                   System. out. println("IP address: "+addr.getHostAddress());  
                   System. out. println("Hostname: "+addr.getHostName());  
                   }  
                  catch(Exception e) {System.out.println(e);}  
      }  
}