static void Main(string[] args)
{
Person person = new Person();
person.SetBirthdate(new DateTime(1999, 1, 1));
Console.WriteLine("The person's birth date is " + person.GetBirthdate());
}
static void Main(string[] args)
{
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
System.Console.WriteLine(person.GetBirthdate());
}
static void Main(string[] args)
{
var person = new Person();
person.SetBirthDate(new DateTime(1987, 08, 04));
Console.WriteLine(person.GetBirthdate());
}
static void Main(string[] args)
{
var person = new Person(); // Cannot access birthdate using person.birthdate
person.SetBirthdate(new DateTime(1994, 02, 15));
System.Console.WriteLine(person.GetBirthdate());
}
static void Main(string[] args)
{
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
Console.WriteLine(person.GetBirthdate());
}
static void Main(string[] args)
{
var person = new Person();
person.SetBirthdate(new DateTime(1996, 6, 20));
Console.WriteLine(person.GetBirthdate());
Console.ReadKey();
}
static void Main(string[] args)
{
var person = new Person(new DateTime(1991, 05, 10));
person.SetBirthdate(new DateTime(1991, 05, 10));
Console.WriteLine(person.GetBirthdate().ToString("dd MMMM yyyy"));
//// auto-properties
Console.WriteLine(person.Age);
}
static void Main(string[] args)
{
// encapsulation - information hiding
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
System.Console.WriteLine(person.GetBirthdate());
}
public static void Main(string[] args)
{
var josh = new Person();
// Console.WriteLine(josh._birthdate); doesn't return anything since this is private field
josh.SetBirthdate(new DateTime(1992, 11, 12));
Console.WriteLine(josh.GetBirthdate());
}
static void Main(string[] args)
{
Console.ForegroundColor = ConsoleColor.Green;
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
Console.WriteLine(person.GetBirthdate());
Console.ReadKey();
}
static void Main(string[] args)
{
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
Console.WriteLine(person.GetBirthdate());
var customer = new Customer();
//Amazon.RateCalculator = new RateCalculator();
}
public static void Main(string[] args)
{
var person = new Person();
// person._birthdate -> if you try to write person dot and then _birthdate (like person._birthdate), it doesn't work 'cause we've set the _birthdate to private
person.SetBirthdate(new DateTime(1982, 1, 1)); /* notice that we haven't used person.lowercase like usual
* fields that follow a class. this is because it's a property and we use pascal case */
Console.WriteLine(person.GetBirthdate());
}
//An access modifier is a way to control access to a class and/or its members.
//This creates safety and robustness in our programs.
//Different types of access modifiers:
//1. public - accessible form anywhere
//2. private - accessible only from class. Use this most of the time.
//3. protected - accessible only from the class and its derived class - try to avoid,
// actually violates encapsulation. Use private instead
//4. internal - accessible only from the same assembly
//5. protected internal - accessible only from the same assembly or any derived classes. Try to avoid as well.
static void Main(string[] args)
{
//When you create an object here, information hiding (or encapsulation) is when
//you can't access private data.
var person = new Person();
person.SetBirthdate(new DateTime(1982, 1, 1));
Console.WriteLine(person.GetBirthdate());
var customer = new Customer();
//Amazon.RateCalculator calculator = new Amazon.RateCalculator(); //RateCalculator is not visible since we made the class "internal" instead of public
}
static void Main(string[] args)
{
/* ENCAPSULATION.
* We can hide some information. The waitress doesn't go and tell the chef how to chop the
* veg, chop the meat etc. Similarly, the chef doesnt tell the waitress how to clear the tables
* or be all charming! These things ar outside their responsibility. Each class has only one job and
* it does it perfectly. We don't want other classes to know about all the details! We hide the details
* from certain classes: so we can define certain fields as PRIVATE and then give them PUBLIC getters
* and setters to access them when we need them.
* */
// Console.WriteLine();
var evie = new Person();
// set the birth date to a value
evie.SetBirthdate(new DateTime(1993, 06, 23));
// read the birth date
Console.WriteLine(evie.GetBirthdate());
Console.ReadKey();
}