What are the components of the log4j api?

Log4j has four fundamental objects: categories, priorities, appenders and layouts. Of these, API users directly use only categories and maybe priorities. Together these components allow developers to log messages according to message type and priority, and to control at runtime how these messages are formatted and where they are reported.
Next, what are the three main components of Log4j?
log4j has three main components: 1 loggers: Responsible for capturing logging information. 2 appenders: Responsible for publishing logging information to various preferred destinations. 3 layouts: Responsible for formatting logging information in different styles. More ...
Likewise, how is the Log4j API used in Firefox? Like Selenium IDE, it is a firefox plug-in and can be seen as one of the tabs in Selenium IDE upon installation. It is a java logging API to generate/save logs. Let us study logging in detail using log4j.
Indeed, which is the appender object in Log4j framework?
The Appender object is responsible for publishing logging information to various preferred destinations such as a database, file, console, UNIX Syslog, etc. The following virtual diagram shows the components of a log4J framework:
Consequently, what's the difference between SLF4J and Log4j in Java?
SLF4J and Log4J are different, or they are not similar components. As the name specified, SLF4J is a simple logging fa ade for java. It is not a logging component, and even it does not do the actual logging.

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