Свойства или Set & Get ?

// Properties!
        public string Name
        {
            get { return empName; }
            set
            {
                if (value.Length > 15)
                    Console.WriteLine("Error!  Name must be less than 16 characters!");
                else
                    empName = value;
            }
        }
 
        // We could add additional business rules to the sets of these properties,
        // however there is no need to do so for this example.
        public int ID
        {
            get { return empID; }
            set { empID = value; }
        }
        public float Pay
        {
            get { return currPay; }
            set { currPay = value; }
        }
 
        public int Age
        {
            get { return empAge; }
            set { empAge = value; }
        }

static void Main( string[] args )
        {
            Console.WriteLine("***** Fun with Encapsulation *****\n");
            Employee emp = new Employee("Marvin", 456, 30000);
            emp.GiveBonus(1000);
            emp.DisplayStats();
 
            // Set and get the Name property.
            emp.Name = "Marv";
            Console.WriteLine("Employee is named: {0}", emp.Name);
 
            // Longer than 15 characters!  Error will print to console. 
            Employee emp2 = new Employee();
            emp2.SetName("Xena the warrior princess");
 
            Console.ReadLine();
        }

 emp.Name = "Marv";

get { Console.WriteLine("In getter"); }
set { Console.WriteLine("In setter"); }

static void Main(string[] args)
    {
     Console.WriteLine("***** Fun with Encapsulation *****\n");
     Employee emp = new Employee("Marvin", 456, 30000);
     emp.GiveBonus(1000);
     emp.DisplayStats();
    
     // Set and get the Name property.
     emp.Name = "Marv";
     emp.Name = "Marv_1";
     emp.Name = "Marv_2";
     emp.Name = "Marv_3";
     Console.WriteLine("Employee is named: {0}", emp.Name);
    
     // Longer than 15 characters!  Error will print to console. 
     Employee emp2 = new Employee();
     emp2.SetName("Xena the warrior princess");
    
     Console.ReadLine();
    }

        static void Main(string[] args)
        {
            List<Person> persons = new List<Person>();
            persons.Add(new Person{Name = "Иван", LastName="Петров"}); // Set 
            foreach (var p in persons)
                Console.WriteLine(p.Name + "  " + p.LastName); // Get
            Console.ReadKey();
        }
    }
 
    class Person
    {
        public string Name { get; set; }
        public string LastName { get; set; }
    }

public Ball
{
public int X { get; set; }
public int Y { get; set; }
public int R { get; set; }
}

public Ball
{
public int X { get; set; }
public int Y { get; set; }
private int r;
public int R { 
get {return r;} 
set {
if(value<0) throw new Exception(); //выдаем исключение (программа упадет)
else r = value; }
}

public Ball
{
public void Move(int x, int y)
{
 X = x; Y = y;

public Ball
{
public int GetX();
public int SetX();
public int GetY();
public int SetY();
public int GetR();
public int SetR();}