example21_4.java.bak

不错的教程 适合中高级人员的使用

import java.net.*; 
public class Example21_4
{  public static void main(String args[])
  {  try{  InetAddress address_1=InetAddress.getByName("www.sina.com.cn");
           System.out.println(address_1.toString()); 
           InetAddress address_2=InetAddress.getByName("166.111.222.3");
           System.out.println(address_2.toString());
        }
    catch(UnknownHostException e)
       {  System.out.println("无法找到 www.sina.com.cn");
       } 
   }
}