how to add a constructor to a class

using System;

class Book

public string Title { get; set; }

public string Author { get; set; }

public DateTime Date { get; set; }

public Book(string title, string author, DateTime date)

public override string ToString()

return String.Format("Title : {0}\nAuthor : {1}\nPublished : {2}", Title, Author, Date.Year);

class Program

static void Main()

Book b = new Book("radars adventure", "Nick james", new DateTime(1989, 1, 1));

Console.WriteLine(b);

Console.ReadKey();