example9_1.java

来自「书中的例题」· Java 代码 · 共 21 行

/* IP地址 */
 import java.net.*; 
 import javax.swing.*;
public class Example9_1 
{   
   public static void main(String []args)
   {
	 String str;
     try{  InetAddress zsm_address=InetAddress.getByName("www.zsm8.com");
          str="思维论坛的IP地址为："+zsm_address.toString(); 
        }
    catch(UnknownHostException e)
       { 
	      str="无法找到思维论坛";
       } 
    JOptionPane.showMessageDialog(null,str);
       System.exit(0);     //退出程序    
   }
}