关于java socket实现服务器向指定的客户端发送信息的小程序
小弟刚学socket 目前能实现同时向两个客户端发送信息,想知道怎么能指定一个发,以下是代码:

服务器:
import java.io.*;
import java.net.*;
import java.util.ArrayList;
import java.util.List;

public class server {
 public static void main(String[] args) throws IOException{
  ServerSocket server=new ServerSocket(5678);
  List<Socket> list = new ArrayList<Socket>();
  while (true){
  Socket client=server.accept();
  list.add(client);
  if(list.size() == 2){
  for(Socket socket : list){
  PrintWriter out=new PrintWriter(socket.getOutputStream());
  BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
  System.out.println(in.readLine());
  out.println("收到");
  out.flush();
  }
  }  
  }
  } 
}  


客户端1 c
import java.net.*;
import java.io.*;

public class c{
 static Socket server;
 
 public static void main(String[] args)throws Exception{
server=new Socket(InetAddress.getLocalHost(),5678);
  BufferedReader in=new BufferedReader(new InputStreamReader(server.getInputStream()));
  PrintWriter out=new PrintWriter(server.getOutputStream());
  while(true){
  System.out.println(in.readLine());
  }
 }
}

客户端2 cc
import java.net.*;
import java.io.*;

public class cc{
 static Socket server;
 
 public static void main(String[] args)throws Exception{
server=new Socket(InetAddress.getLocalHost(),5678);
  BufferedReader in=new BufferedReader(new InputStreamReader(server.getInputStream()));
  PrintWriter out=new PrintWriter(server.getOutputStream());
  while(true){
  System.out.println(in.readLine());
  }
 }
}

谢谢各位了!!

------解决方案--------------------
把你的增强for循环改掉，list.get(index)返回的是socket对象，调用这个socket对象获取输出流。通过index指定你想输出的客户端