public class LogExample {
	private static final java.util.logging.Logger log = java.util.logging.Logger.getLogger(LogExample.class.getName());
	
	public static void main(String... args) {
		log.severe("Something's wrong here");
	}
}

public class LogExampleOther {
	private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(LogExampleOther.class);
	
	public static void main(String... args) {
		log.error("Something else is wrong here");
	}
}

public class LogExampleCategory {
	private static final org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog("CounterLog");

	public static void main(String... args) {
		log.error("Calling the 'CounterLog' with a message");
	}
}