import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

public static void main(String args[]){

ServerSocket server = null;

Socket you = null;

String s = null;

DataOutputStream out = null;

DataInputStream in = null;

try{

server = new ServerSocket(4441);

}catch (IOException e){

System.out.println("ERROR:" + e);

}

try{

you = server.accept();

in = new DataInputStream(you.getInputStream());

out = new DataOutputStream(you.getOutputStream());

while (true){

s = in.readUTF();

if(s != null) break;

}

out.writeUTF("客户，你好，我是服务器!");

out.close();

}catch (IOException e){}

}

}