bienvenudev

// FileHandler writes log output to a file instead of console.
// XMLFormatter structures each record as XML (verbose but parseable).
// Must add handler to logger AFTER creating it.

Logger logger = Logger.getLogger(Main.class.getName());
FileHandler fileHandler = new FileHandler("default.log");
logger.addHandler(fileHandler);
fileHandler.setFormatter(new XMLFormatter());
logger.info("info message");
logger.warning("a warning here!");