Log4j Example

Description : Log4j Example with BasicConfigurator and PropertyConfigurator

/*>>>>>>>>>>>>>>>>Program1 with BasicConfigurator<<<<<<*/
/*>>>>>>>>>>>>>>>>SampleLog4j.java<<<<<<<<<<<<<<<<<<*/
package com.example;

import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;

public class SampleLog4j {
	static final Logger logger = Logger.getLogger(SampleLog4j.class);

	public static void main(String... args) {
		BasicConfigurator.configure();
		Logger.getRootLogger().setLevel(Level.DEBUG);
		System.out.println(logger.isDebugEnabled());
		logger.debug("Sample debug message");
		logger.info("Sample info message");
		logger.warn("Sample warn message");
		logger.error("Sample error message");
		logger.fatal("Sample fatal message");
	}
}
/* >>>>>>>>>>>>>>>Program1 ends<<<<<<<<<<<<<<<<<<<< */

/*>>>>>>>>>>>>>>>>Program1 with BasicConfigurator<<<<<<*/

/*>>>>>>>>>>>>>>>>SampleLog4j.java<<<<<<<<<<<<<<<<<<*/

package com.example;

import org.apache.log4j.BasicConfigurator;

import org.apache.log4j.Level;

import org.apache.log4j.Logger;

public class SampleLog4j {

static final Logger logger = Logger.getLogger(SampleLog4j.class);

public static void main(String... args) {

BasicConfigurator.configure();

Logger.getRootLogger().setLevel(Level.DEBUG);

System.out.println(logger.isDebugEnabled());

logger.debug("Sample debug message");

logger.info("Sample info message");

logger.warn("Sample warn message");

logger.error("Sample error message");

logger.fatal("Sample fatal message");

}

/* >>>>>>>>>>>>>>>Program1 ends<<<<<<<<<<<<<<<<<<<< */

/*>>>>>>>>>>>>>>>Program 2 with PropertyConfigurator<<<*/
/*>>>>>>>>>>>>>>>>SampleLog4j.java<<<<<<<<<<<<<<<<<*/
package com.example;

import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;

public class SampleLog4j {
	static final Logger logger = Logger.getLogger(SampleLog4j.class);

	public static void main(String... args) {
		PropertyConfigurator.configure("log4j.properties");
		System.out.println(logger.isDebugEnabled());
		logger.debug("Sample debug message");
		logger.info("Sample info message");
		logger.warn("Sample warn message");
		logger.error("Sample error message");
		logger.fatal("Sample fatal message");
	}
}

/*>>>>>>>>>>>>>>>Program 2 with PropertyConfigurator<<<*/

/*>>>>>>>>>>>>>>>>SampleLog4j.java<<<<<<<<<<<<<<<<<*/

package com.example;

import org.apache.log4j.PropertyConfigurator;