Java中的InetAddress类，这样为什么不对？

Question

package com.task30;

import java.net.*;

public class getAddressIP {

public static void main(String[] args) {

try{

   address=InetAddress.getByName("www.163.com");

System.out.println(address.toString());

String domain_name=address.getHostName();

System.out.println("域名为："+domain_name);

String IP_name=address.getHostAddress();

System.out.println("IP为："+IP_name);

}catch(UnknownHostException e){

System.out.println("无法找到WWW.163.COM");

}

}

}

Answer 1

并没有错