Log4j example using log4j xml file

import org.apache.log4j.Logger;
 
/**
 * This class is used to show the use of 
 * Log4j with the log4j.xml file.
 * @author w3schools
 */
public class Log4jTest {
	//Get the Logger object.
	private static Logger log = Logger.getLogger(Log4jTest.class);
 
	public static void main(String[] args) {	
		//logger messages
		log.debug("Log4j debug message test.");
		log.info("Log4j info message test.");
		log.warn("Log4j warn message test.");
		log.error("Log4j error message test.");
		log.fatal("Log4j fatal message test.");
	}
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>
	<appender name="CA" class="org.apache.log4j.ConsoleAppender">
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%m%n" />
		</layout>
	</appender>
	<root>
		<level value="info" />
		<appender-ref ref="CA" />
	</root>
</log4j:configuration>

Log4j info message test.
Log4j warn message test.
Log4j error message test.
Log4j fatal message test.