使用java线程扫描局域网ip简单方案

package com.cjh.thread;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Iterator;
/**
 * 使用java线程扫描局域网ip简单方案
 * @author Administrator
 *
 */
public class LanIP {
   
    public static void main(String[] args) {
        System.out.println("开始......");
        LanIP ip = new LanIP();
        ArrayList<String> list =  ip.getLanIPArrayList();
        System.out.println("最后有多少个===>"+list.size());
    }
   
    public ArrayList<String> getLanIPArrayList() {
        ArrayList<String> arrayIP = null;
        try {
            InitSystem initSystem = null;
            initSystem = new InitSystem();
            Thread thread = new Thread(initSystem);
            thread.start();
            thread.join();
            arrayIP = initSystem.getArrayIPUsed();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return arrayIP;
    }