import java.net.*;

public class NetTool
{
 InetAddress myIPaddress=null;
 InetAddress myServer=null;
 
 public static void main( String args[])
 {
  
  NetTool mytool;
  mytool=new NetTool();
  
  System.out.println("Your host IP is: "
  + mytool.getMyIP());
  System.out.println("The Server IP is :"
  +mytool.getServerIP());
 }
 
 //取得LOCALHOST的IP地址
 public InetAddress getMyIP()
 {
  try { myIPaddress=InetAddress.getLocalHost();}
  catch (UnknownHostException e) {}
  return (myIPaddress);
 }
 
 //取得 www.abc.com 的IP地址
 public InetAddress getServerIP()
 {
  try
  {
   myServer=InetAddress.getByName("www.gdqy.edu.cn");
  }
  catch (UnknownHostException e) {}
  return (myServer);
 }
}