大神求解，下面的Java程序在myeclipse中运行输出IP地址什么原因

import *;
public class ghj {

    public static void main(String[] args) {
InetAddress ip=null;
try{
    ip =InetAddress.getLocalHost();
    String localname= ip.getHostName();
    String localip= ip.getHostAddress();
    System.out.println("本机名："+localname);
    System.out.println("本机ip地址："+localip);
    }catch(UnknownHostException e){
    e.printStackTrace();   
    }
    }
}