Logger controls
Logging will be helpful when we need to track the output of a specific process. It will help us verify the process or find the root cause of the error when things go wrong after deploying our application in the server. Without loggers, it will be difficult to track and figure out the problem if anything happens.
There are many logging frameworks we can use in our application; Log4j and Logback are the two major frameworks used in most applications.
SLF4J, Log4J, and Logback
SLF4j is an API to help us choose Log4j or Logback or any other JDK logging during deployment. SLF4j is just an abstraction layer that gives freedom to the user who uses our logging API. If someone wants to use JDK logging or Log4j in their implementation, SLF4j will help them plug in the desired framework during runtime.
If we create an end product that can't be used by someone as a library, we can implement Log4j or Logback directly. However, if we have a code that can be used as a library, it would be better...
