1. Log4j - Console Appender
Configuring log4j with Console Appender.
2. Log4j - File Appender
Configuring log4j with File Appender.
3. Log4j - Rolling File Appender
Configuring log4j with Rolling File Appender.
4. Log4j - Daily Rolling File Appender
Configuring log4j with Daily file Appender.