This is program.cs

Program.cs

using System;
using System.IO;
using Newtonsoft.Json;

namespace AuthorSerialize
{
    public class Program
    {
        static void Main(string[] args)
        {
            AuthorFactory factory = new AuthorFactory();
            Author author = new Author();

            author = factory.CreateAuthor();

            string str = JsonConvert.SerializeObject(author, Formatting.Indented);
            System.Console.WriteLine(str);

            //serialize to a file --> serialize means to convert an object 
            //representation in memory to a representation on disk/wire. In this casse the 
            //object representation is being stored on disk as a file

            //Serialization is differnt than converting the properties of a type to string
            //and writing them to a file. Here the responsibility of storing the memory based
            //representation of the object to disk belongs to the object itself. 
            using (StreamWriter file = File.CreateText(@".\authors\" + author.FirstName + ".json"))
            {
                JsonSerializer serializer = new JsonSerializer();
                serializer.Serialize(file, author);
            }
            // read file into a string and deserialize JSON to a type
            Author  author1 = null;
            author1 = JsonConvert.DeserializeObject<Author>(File.ReadAllText(@".\authors\" + author.FirstName + ".json"));

            // deserialize JSON directly from a file
            using (StreamReader file = File.OpenText(@".\authors\" + author.FirstName + ".json"))
            {
                JsonSerializer serializer = new JsonSerializer();
                Author aurhor2  = null;
                aurhor2 = (Author)serializer.Deserialize(file, typeof(Author));
            }


        }
    }
}