Java tutorial
import java.io.IOException; import java.util.logging.ConsoleHandler; import java.util.logging.FileHandler; import java.util.logging.Handler; import java.util.logging.Logger; import java.util.logging.XMLFormatter; public class MainClass { public static void main(String args[]) { Logger logger = Logger.getLogger("my.log"); Handler handler = null; try { handler = new FileHandler("messages.log"); } catch (IOException e) { System.out.println("Could not create file. Using the console handler"); handler = new ConsoleHandler(); } logger.addHandler(handler); handler.setFormatter(new XMLFormatter()); logger.info("Our first logging message"); logger.severe("Something terrible happened"); } }