public class HelloLogWorld {

   private static String name = HelloLogWorld.class.getName();

   private static Logger log = Logger.getLogger(name);// <= (2)

   public void sub() {

     log.info("Hello Logging World");    // <= (3)

   }

   public static void main(String[] args) {

     HelloLogWorld logWorld = new HelloLogWorld();

     logWorld.sub();

   }

 }  

Logger logger=Logger.getLogger(ECntrCbsChargingService.class);

logger.info("success");