怎么结束程序，大家帮忙改改 - 黑马程序员技术交流社区

import java.io.*;
import java.net.*;
class Send implements Runnable
{
private DatagramSocket ds;
public Send(DatagramSocket ds){
this.ds = ds;
}
public void run(){
try
{
BufferedReader bufr =
new BufferedReader(new InputStreamReader(System.in));
String line = null;
while ((line = bufr.readLine())!= null)
{
if ("886".equals(line))
<font color="red">break;</font>
byte[] buf = line.getBytes();
DatagramPacket dp =
new DatagramPacket(buf,buf.length,InetAddress.getByName("192.168.1.103"),10005);
ds.send(dp);
}
<font color="red">ds.close();</font>
}
catch (Exception e)
{
System.out.println("出现异常，发送失败");
}
}
}
class Rece implements Runnable
{
private DatagramSocket ds;
public Rece(DatagramSocket ds){
this.ds = ds;
}
public void run(){
try
{
while (true)
{
byte[] buf = new byte[1024];
DatagramPacket dp = new DatagramPacket(buf,buf.length);
ds.receive(dp);
String ip = dp.getAddress().getHostAddress();
String data = new String(dp.getData(),0,dp.getLength());
System.out.println(ip+":::"+data);
}
}
catch (Exception e)
{
System.out.println("出现异常，接收失败");
}
}
}
class ChatDemo
{
public static void main(String[] args) throws Exception
{
DatagramSocket sendSocket = new DatagramSocket();
DatagramSocket receSocket = new DatagramSocket(10005);
new Thread(new Send(sendSocket)).start();
new Thread(new Rece(receSocket)).start();
}
}

复制代码