Here is my code

package com.my;
import org.apache.log4j.spi.LoggerFactory;
import java.io.*;
import java.util.logging.*;

public class Log {
      public static void main(String[] args) {
      try{
           FileHandler hand = new FileHandler("vk.log");
           Logger log = Logger.getLogger("log_file");
           log.addHandler(hand);
           log.warning("Doing carefully!");
           log.info("Doing something ...");
           log.severe("Doing strictily ");
           System.out.println(log.getName());
      }
      catch(IOException e){
           System.out.println(e)
      }
    }

}