Programming Exercise 3: Classes - Static Fields and Static Constructors

Define additional fields in your existing User class.

• _dateCreated (static readonly) - Date of object creation
• ClassesCreated (static) - Number of objects instantiated

Define a static constructor that initializes the ClassesCreated field to 0.

Modify your existing constructor to set values for the additional fields:

• The _dateCreated field is set to the current date
• The ClassesCreated field is incremented
  

Define a read-only property for the _dateCreated field

After implementing these, you should be able to use your class as follows:

class Program
{
   static void Main(string[] args)
   {
       User user1 = new User("user1", "password1");
       Console.WriteLine(user1.DateCreated);    // Outputs the creation date for user1
       Console.WriteLine(User.ClassesCreated);  // Outputs "1" since this is the first object

       User user2 = new User("user2", "password2");
       Console.WriteLine(user2.DateCreated);    // Outputs the creation date for user2
       Console.WriteLine(User.ClassesCreated);  // Outputs "2" since this is the second object
       Console.ReadLine();
   }
}