. . .
ScheduledExecutorService ThreadPoo = Executors.newScheduledThreadPool(1);
. . .
Runnable Runn = new Runnable() {
            @Override
            public void run() {
           ...
          // реализация некоего кода 
          }
 };
ThreadPoo.scheduleAtFixedRate(Runn, 0, 1, TimeUnit.SECONDS);

// если закладка закрыта, то "прибить" поток
ThreadPoo.shutdown(); // эта строка с проверкой находится внутри run()

//clientSock.java
. . .
public String logisticsReadingTheID(String id) throws IOException {
        sock = new Socket(hostName, 1234);
        is = new BufferedReader(new InputStreamReader(sock.getInputStream()));
        os = new PrintWriter(sock.getOutputStream(), true);
        os.print("logisticsReadingTheID|||" + id);
        os.flush();
        String ret = is.readLine();
        sock.close();
        return ret;
}
. . .

//infojPanel.java

. . .
ScheduledExecutorService ThreadPoo = Executors.newScheduledThreadPool(1);

	    Runnable Runn = new Runnable() {
            clientSock cs = new clientSock();
	    String logisticsReadingTheID;
            @Override
            public void run() {
                try {
                        logisticsReadingTheID = cs.logisticsReadingTheID(String id);
                        StringTokenizer tokenizerstrMSG = new StringTokenizer(strMSG, "|||");
                        while (tokenizerstrMSG.hasMoreTokens()) {
                            String from = tokenizerstrMSG.nextToken();
                            String to = tokenizerstrMSG.nextToken();
                            String str = from + " " + to +"\n";
                            jTextArea1.append(str);
                        }
                    }
                } catch (Exception ex) {
               }
            }
        };

        ThreadPoo.scheduleAtFixedRate(Runn, 0, 1, TimeUnit.SECONDS);
. . .

ScheduledExecutorService ThreadPoo = Executors.newScheduledThreadPool(1);
. . .
Runnable Runn = new Runnable() {
            @Override
            public void run() {
           ...
          // реализация некоего кода 
          }
 };
ThreadPoo.scheduleAtFixedRate(Runn, 0, 1, TimeUnit.SECONDS);