Log4j

Log4j is highly arranged. It is mainly for logging process. There is the different kind of label like logger, appenders, layouts. Also, it uses multiple level trace, debugs, info, warn, error and fatal. Log4j also have the different version. It can be highly setup through the external file. log4j is a reliable, fast and flexible logging framework (APIs) written in Java, which is distributed under the Apache Software License. log4j is a popular logging package written in Java. log4j has been ported to the C, C++, C#, Perl, Python, Ruby, and Eiffel languages. The Log4j API is a logging facade that may, of course, be used with the Log4j implementation, but may also be used in front of other logging implementations such as Logback. The Log4j API has several advantages over SLF4J: 1. The Log4j API supports logging Messages instead of just Strings. 2. The Log4j API supports lambda expressions. 3. The Log4j API provides many more logging methods than SLF4J. 4. In addition to the “parameterized logging” format supported by SLF4J, the Log4j API also supports events using the java.text.MessageFormat syntax as well as print-style messages. 5. The Log4j API provides a LogManager.shutdown() method.

Anyone who wishes to learn the basics of Log4j

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· Introduction to Log4j

· Log4j Components and Implementation

· Working with Log4j Properties

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