Logback ,SLF4J , Log4J2. Understanding them and learn how to use.

If you are working or worked on any java project, you might have logged some debug ,error or info statements for debugging or tracking purpose. Those statements are written by logging libraries to a file on disk or on some other medium.

Logging is a critical aspect of any project, so various framework has been written . some of java logging framework are Log4j ,logback , Apache common logging, java.util.Logger etc. All these logger do the work of logging your logs to file or other specified media.