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Log4j Tutorial


Log4j is a simple, flexible, and fast Java-based logging framework. It is thread-safe and supports internationalization.

Log4j main components:

  1. Logger: It is used to log the messages.
  2. Appender: It is used to publish the logging information to the destination like file, database, console, etc.
  3. Layout: It is used to format logging information in different styles.

Advantages of Log4j:

It provides easy maintenance and fast debugging.

Disadvantages of Log4j:

It slows down the application.

Java log4j tutorial :

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Log4j interview questions:


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