klogger.filepath=/path/to/log/file.log klogger.loglevel=DEBUG klogger.maxfilesize=10MB klogger.maxbackupfiles=10 import com.klogger.Klogger; Klogger logger = Klogger.getLogger(YourClassName.class); 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");