How to create log files using Java

//How to create Log Files using Java.

import java.util.logging.*;
import java.io.*;

public class TestLog {

public static Logger logger;

static {
    try {
      boolean append = true;
      FileHandler fh = new FileHandler("TestLog.log", append);
      //fh.setFormatter(new XMLFormatter());
      fh.setFormatter(new SimpleFormatter());
      logger = Logger.getLogger("TestLog");
      logger.addHandler(fh);
    }
    catch (IOException e) {
      e.printStackTrace();
    }
}

public static void main(String args[]) {
    logger.severe("my severe message");
    logger.warning("my warning message");
    logger.info("my info message");
    }
}