java log is not written into text file

Question

I have written a common class for logger and used this class in another class(Server_imp) to create logs. But no data is written in the text file instead it is shown on console. What are problems with my code? actually i have to create three log files for three different servers and log the functions performed by server managers . and how i can stop data to be written on console?

public class MyLogging {
    static Logger logger;
    public Handler fileHandler;
    SimpleFormatter plainText;

        public MyLogging() throws IOException{
            //instance the logger
            logger = Logger.getLogger(MyLogging.class.getName());
            //instance the filehandler
            fileHandler = new FileHandler("D:/JAVA/assignment1/Montreallog.txt",true);
            //instance formatter, set formatting, and handler
            plainText = new SimpleFormatter();
            fileHandler.setFormatter(plainText);
            logger.addHandler(fileHandler);

        }

    }

//I have not copied the whole code

    public class Server_imp extends UnicastRemoteObject implements ServerInterface
    {
    Logger logger = Logger.getLogger(MyLogging.class.getName()); 
    public void createTRecord(String f_name,String l_name,String addr,String number,String spec,String loc)
        {
    logger.info("Teacher record created");
        }