Constructors and Destructors

 using System;

using System.IO;

using System.Linq;

using System.Collections.Generic;

namespace CSharp_Shell

{

 public class Exercise

 {

  //default constructor

  public Exercise()

  {

   Console.WriteLine("This is a default constructor");

  }

  //2nd Constructor with one string paramater

  public Exercise(string message)

  {

   Console.WriteLine(message);

  }

  //3rd Constructor with two int variables paramaters

  public Exercise(int num1, int num2)

  {

   Console.WriteLine(num1 + num2);

  }

  //Destructor

  ~Exercise()

  {

   Console.WriteLine("Calling Destructor");

   Console.ReadLine();

  }

 }

 public class Program

 {

  public static void Main()

  {

   //creating 3 instances/objects of class Exeecise

   Exercise obj1 = new Exercise();

   Exercise obj2 = new Exercise("Hi i am Adeel");

   Exercise obj3 = new Exercise(5, 5);

  }

 }

}