Java 的通信编程，编程题(或问答)，用 JAVA SOCKET 编程，读服务器几个字符，再写入本地显示

答：Server 端程序:

 package test; 
 import java.net.*; 
 import java.io.*; 
 public class Server{ 
 private ServerSocket ss; 
 private Socket socket; 
 private BufferedReader in; 
 private PrintWriter out; 
 public Server(){ 
 try { 
 ss=new ServerSocket(10000); 
 while(true){ 
 socket = ss.accept(); 
 String RemoteIP = 
 socket.getInetAddress().getHostAddress(); 
 String RemotePort = ":"+socket.getLocalPort(); 
 System.out.println("A client come in!IP:" 
 + RemoteIP+RemotePort); 
 in = new BufferedReader(new 
 InputStreamReader(socket.getInputStream())); 
 String line = in.readLine(); 
 System.out.println("Cleint send is :" + line); 
 out = 
 new PrintWriter(socket.getOutputStream(),true); 
 out.println("Your Message Received!"); 
 out.close(); 
 in.close(); 
 socket.close(); 
 } 
 }catch (IOException e){ 
 out.println("wrong"); 
 } 
 } 
 public static void main(String[] args){ 
 new Server(); 
 } 
 } 

Client 端程序:

 package test; 
 import java.io.*; 
 import java.net.*; 
 public class Client { 
 Socket socket; 
 BufferedReader in; 
 PrintWriter out; 
 public Client(){ 
 try { 
 System.out.println("Try to Connect to 127.0.0.1:10000"); 
 socket = new Socket("127.0.0.1",10000); 
 System.out.println("The Server Connected!"); 
 System.out.println("Please enter some Character:"); 
 BufferedReader line = new BufferedReader(new 
 InputStreamReader(System.in)); 
 out = new PrintWriter(socket.getOutputStream(),true); 
 out.println(line.readLine()); 
 in = new BufferedReader( 
 new InputStreamReader(socket.getInputStream())); 
 System.out.println(in.readLine()); 
 out.close(); 
 in.close(); 
 socket.close(); 
 }catch(IOException e){ 
 out.println("Wrong"); 
 } 
 } 
 public static void main(String[] args) { 
 new Client(); 
 } 
 }