Logger class

✔ LOG4J CHAPTERS:-

1. Log4j Overview
2. Log4j Logger Class
3. Log4j Example
4. Log4j Example using Log4j Properties
5. Log4j Example using Log4j xml File
6. Logging Levels in Log4j
7. Log4j File Appender
8. Log4j Multiple Appenders Example
9. Log4j Tutorials PDF Download
9. Log4j Interview Questions & Answers

Logger class:

Logger class provides the methods for logging process. We can use the getLogger() method to get the Logger object.

Syntax: public static Logger getLogger(String name);

Where name is the fully qualified class name.

Logging methods:

1. debug(Object message): It is used to print the message with the level Level.DEBUG.

Syntax: public void debug(Object message)

2. error(Object message): It is used to print the message with the level Level.ERROR.

Syntax: public void error(Object message)

3. info(Object message): It is used to print the message with the level Level.INFO.

Syntax: public void info(Object message)

4. fatal(Object message): It is used to print the message with the level Level.FATAL.

Syntax: public void fatal(Object message)

5. warn(Object message): It is used to print the message with the level Level.WARN.

Syntax: public void warn(Object message)

6. trace(Object message): It is used to print the message with the level Level.TRACE.

Syntax: public void trace(Object message)