在线程中多次运行BufferedReader

Question

我是编程新手。我的单身汉项目只需要一个程序。

我在程序中运行一个线程时遇到问题，该线程使用缓冲读卡器来保存来自互联网流的一些数据。当我第一次运行线程时，一切都运行得很好但是当我完成它并运行一个新线程时，线程似乎正在工作，但是缓冲读取器部分的循环在某种程度上不起作用。你能救我吗？

    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.net.Socket;
    import java.net.UnknownHostException;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import javax.swing.JTextField;


     volatile boolean stopRequested = false;
     private Socket socket = null;
     private BufferedReader in = null;


    public void runMe() {
        stopRequested = false;
        Thread vypocet = new Thread(mytask);
        vypocet.start();
        }
    public void stopMe() {
        stopRequested = true;
        }

        public Runnable mytask = () -> {

            try {
                socket = new Socket(Gui.iP.getText(), Integer.parseInt(Gui.port.getText()));
                in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            } catch (UnknownHostException e) {
                System.err.println("Don't know about host");
                System.exit(1);
            } catch (IOException e) {
                System.err.println("Couldn't get I/O for the connection");
                System.exit(1);
            }

            try {
                for (String line = in.readLine(); stopRequested != true; line = in.readLine()) {

    //some calculation I need

                   } 
catch (IOException ex1) {
                Logger.getLogger(Gui.class.getName()).log(Level.SEVERE, null, ex1);
                System.err.println("Error in loading receiver's data. Please turn the program off and on again.");
                System.exit(1);
            }

            System.out.println("End of the calculation");
     };