using System;

​

public class Vector{

    public int x,y,z;

    public Vector(){

    }

    public Vector(int x,int y,int z){

        this.x = x;

        this.y = y;

        this.z = z;

    }

    public override string ToString()

    {

        return (x+y+z+"");

    }

    public static Vector operator +(Vector v1,Vector v2){

        Vector v3 = new Vector();

        v3.x = v1.x+v2.x;

        v3.y = v1.y+v2.y;

        v3.z = v1.z+v2.z;

        return v3;

    }

    public static Vector operator -(Vector v1,Vector v2){

        Vector v3 = new Vector();

        v3.x = v1.x-v2.x;

        v3.y = v1.y-v2.y;

        v3.z = v1.z-v2.z;

        return v3;

    }

    public void Display(){

        Console.WriteLine("({0},{1},{2})",this.x,this.y,this.z);    

    }

    public void Print(Vector v){

        Console.WriteLine("({0},{1},{2})",v.x,v.y,v.z); 

    }

    public void Subtracting1(Vector v){

        this.x = v.x-1;

        this.y = v.y-1;

        this.z = v.z-1;

        Console.WriteLine("({0},{1},{2})",this.x,this.y,this.z);

    }

}

​

delegate  void delegatTest(Vector v);

delegate void NumberChanger(Vector v);

delegate void del(Vector v);

public class VectorTest

{

    public static void Main()

    {

        Vector v = new Vector(10,9,8);

        Vector v1 = new Vector(1,2,3);

        Console.WriteLine("v1 : (1,2,3)");

        Vector v2 = new Vector(4,5,6);

        Vector v3;

        Console.WriteLine("v2 : (4,5,6)");

        Console.WriteLine("Adding the two vectors : ");

        v3 = v1+v2;

        v3.Display();

        Console.WriteLine("Subtracting the two vectors : ");

        v3 = v1-v2;

        v3.Display();

        delegatTest[] op={v1.Print,v2.Subtracting1};

                      for (int i = 0; i < op.Length; i++)

                      {

                          op[i](v);

                      }

        delegatTest d = new delegatTest(v.Print);

        d += v.Subtracting1;

        d(v1);

        NumberChanger nc = delegate(Vector v4)

        {

            Console.WriteLine("Anonymous Method");

            Console.WriteLine("x: "+(v4.x*2));

            Console.WriteLine("y: "+(v4.y*2));

            Console.WriteLine("z: "+(v4.z*2));

        };

        nc(v3);

        del myDelegate = y =>

                        {

                            v.x = v.x + 5;

                            v.y = v.y + 5;

                            v.z = v.z + 5;

                            v.Print(v);

                        };

       myDelegate(v1);

    }

}