java logger calling from another class

I'm learning this logger from java and trying to call the class MyLogger from the main class but it seems not to be working

MyLogger.java

public class MyLogger {

    public MyLogger() {

        Logger logger = Logger.getLogger("MyLog");
        FileHandler fh;
        try {

        fh = new FileHandler("c:\\opt\\MyLogFile.log", true);
        logger.addHandler(fh);
        logger.setLevel(Level.ALL);
        SimpleFormatter formatter = new SimpleFormatter();
        fh.setFormatter(formatter);
        logger.log(Level.WARNING,"My first log");

        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Client.java

public class Client {
    private final static Logger LOGGER = Logger.getLogger(Client.class.getName());

    public static void main(String[] args) {
        LOGGER.setLevel(Level.SEVERE);
        LOGGER.getName();
        LOGGER.getClass();
        LOGGER.info("ABC");


    }
}

1. Why is it not calling the MyLogger.java to create the log file?
2. Is there a beter way to log the eclipse console rather than putting LOGGER on each methods for each class?
3. Why some uses flush() before closing the log file?