class A

{

    int x;

    public static int y;

    //static initializer

    static A()

    {

        System.Console.WriteLine("Static initializer");

    }

    //constructor

    public A()

    {

        System.Console.WriteLine("Constructor 1");

    }   

    public A( int x )

    {

        this.x = x;

        System.Console.WriteLine("Constructor 2");

    }   

    public A( int x, int y )

    {

        this.x = x;                                 //without using 'this', parameter has greater preference. Hence it makes a meaningless statement

        A.y = y;

        System.Console.WriteLine("Constructor 3");

    }   

}

​

​

public class Program

{

    public static void Main()

    {

        A.y=30;

        A obj = new A();

        A obj1 = new A();

        A obj2 = new A(10);             //compile time polymorphism

        A obj3 = new A(20,30);          //compile time polymorphism

    }

}

​

//steps:

//1. Allocate memory for y

//2. Call static initializer

//3. Allocate memory for new instance obj

//4. Call non static initializer

//etc...