Klogger logger = new Klogger(); logger.setLogLevel(Level.DEBUG); logger.debug("This is a debug message."); logger.info("This is an info message."); logger.warn("This is a warning message."); logger.error("This is an error message."); KloggerConfig config = new KloggerConfig(); config.setDateFormat("yyyy-MM-dd HH:mm:ss"); config.setIncludeClassName(true); Klogger logger = new Klogger(config); ConsoleAppender appender = new ConsoleAppender(); logger.setAppender(appender); try { // Some code that may throw exceptions } catch(Exception e) { logger.error("An exception occurred.", e); } config.setEnableThreadContext(true);