Members

get and set are accessors used in properties to encapsulate fields and control how values are accessed and modified.

class Person
{
    private string name; // Private field

    public string Name  // Property with get and set
    {
        get { return name; }  // Getter
        set { name = value; } // Setter
    }
}

Property with Validation
csharp

class Person
{
    private int age;
    public int Age
    {
        get { return age; }
        set
        {
            if (value >= 0) age = value; // Validation
            else throw new ArgumentException("Age cannot be negative.");
        }
    }
}

A method in C# is a block of code that performs a specific task. It helps in code reusability and modular programming. Methods are defined inside a class and can be called multiple times.

class Program
{
    static void SayHello()
    {
        Console.WriteLine("Hello, World!");
    }

    static void Main()
    {
        SayHello(); // Calling the method
    }
}

A constructor is a special method in C# that is automatically called when an object of a class is created. It is used to initialize an object’s properties and set up any required resources.

class Person
{
    public string Name;

    // Default constructor
    public Person()
    {
        Name = "Unknown";
        Console.WriteLine("Constructor called!");
    }
}

class Program
{
    static void Main()
    {
        Person p = new Person(); // Constructor is called automatically
        Console.WriteLine(p.Name);
    }
}