A view About Logger and json In java

package main.java;import java.io.DataInputStream;import java.io.IOException;import java.util.Scanner;import java.util.logging.FileHandler;import java.util.logging.Logger;import java.util.logging.SimpleFormatter;public class LoggerDemo {
    public static void main(String args[]) throws  Exception{
         Logger logger=Logger.getLogger(LoggerDemo.class.getName());        try (Scanner scanner=new Scanner(System.in))
        {
            int a=scanner.nextInt();            FileHandler fileHandler=new FileHandler("/Users/mohan/IdeaProjects/Logger/Log.log");            FileHandler fileHandler1=new FileHandler("/Users/mohan/IdeaProjects/Logger/Log1.log");            FileHandler fileHandler2=new FileHandler("/Users/mohan/IdeaProjects/Logger/Log2.log");
            logger.addHandler(fileHandler);            logger.addHandler(fileHandler1);            logger.addHandler(fileHandler2);            logger.getLevel();            logger.getName();            logger.info("run");            logger.warning("no-error");
            SimpleFormatter simpleFormatter=new SimpleFormatter();
            fileHandler1.setFormatter(simpleFormatter);        }
        System.out.print("LoggerDemo in main class");        logger.info("run");    }
}