Advantage of log4j

Question

What\'s the advantage of log4j over set System.out and System.err to output to a log file?

Answer 1

• logging (Document historical business events that occur, you can check old logs)
• track the application (project flow)
• debugging the application (Detailed information what occurs in a method at granular level //data, value and all inside methods)
• error handling (information about specific error that occur)