為什么控制臺不可以輸入信息

控制臺

package immoke網絡通信;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

public static void main(String[] args) {

// TODO Auto-generated method stub

try {

ServerSocket serversocket=new ServerSocket(8998);

System.out.println("###服務器即將連接，等待客戶端的連接###");

Socket socket=serversocket.accept();?

InputStream is=socket.getInputStream();

InputStreamReader isr=new InputStreamReader(is);

BufferedReader br=new BufferedReader(isr);

String info;

while((info=br.readLine())!=null) {

System.out.println("我是服務器，客戶端說："+info);

}

socket.shutdownInput();

br.close();

is.close();

isr.close();

socket.close();

serversocket.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

客戶端

package immoke網絡通信;

import java.io.IOException;

import java.io.PrintWriter;

import java.net.Socket;

import java.net.UnknownHostException;

import java.io.OutputStream;

public class Client {

public static void main(String[] args) {

// TODO Auto-generated method stub

try {

Socket socket=new Socket("localhost",8998);

OutputStream os=socket.getOutputStream();

PrintWriter pw=new PrintWriter(os);

pw.write("用戶名：Mituzhifan，密碼：123");

pw.flush();

socket.shutdownOutput();

pw.close();

os.close();

socket.close();

} catch (UnknownHostException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}