Programmetically add Log4J Appenders

Following code snippet shows how to programmetically add log4j Appenders to your java code.

import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.FileAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.SimpleLayout;

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

    public static void main(String args[]) {
        SimpleLayout layout = new SimpleLayout();
        FileAppender fileAppender = null;
        try {
            fileAppender = new FileAppender(layout, "log.txt", false);
        } catch (Exception ignored) {
        }

        ConsoleAppender consoleAppender = new ConsoleAppender(new PatternLayout());

        logger.addAppender(fileAppender);
        logger.addAppender(consoleAppender);
        logger.setLevel(Level.DEBUG);

        logger.debug("DEBUG");
        logger.info("INFO");
        logger.warn("WARN");
        logger.error("ERROR");
        logger.fatal("FATAL");
    }
}