using System;

public class Program

{

    public static void Main()

    {

        var articleBuiltWithDefaultContructor = new Article();

        var articleBuiltWithOneParamterConstructor = new Article("I was built with the other constructor!");

        var articleBuiltWithTwoParamterConstructor = new Article("I was built with an ID set too!", 2);

        Console.WriteLine(BuildAritcleNameAndID(articleBuiltWithDefaultContructor.name, articleBuiltWithDefaultContructor.id));

        Console.WriteLine(BuildAritcleNameAndID(articleBuiltWithOneParamterConstructor.name, articleBuiltWithOneParamterConstructor.id));

        Console.WriteLine(BuildAritcleNameAndID(articleBuiltWithTwoParamterConstructor.name, articleBuiltWithTwoParamterConstructor.id));

    }

                          private static string BuildAritcleNameAndID(string name, int id)

                          {

                              return "Name: " + name + " ID: " + id.ToString();

                          }

}

​

​

public class Article {

    public string name;

    public int id;

    // Contrsuctor, function which returns no type, and has to have the same name as the CLASS.

    // This is a PARAMETERLESS constructor

    public Article() {

        this.id = 1;

        this.name = "I am the default name";

    }

    // You can have more than one constructor, but they have to have different parameters.

    // This one has one param.

    public Article(string name) {

        this.id = 1;

        this.name = name;

    }

    // This one has two, it has the same method name as the ones above, but importantly, it has different paramters.

    public Article(string name, int id) {

        this.id = id;

        this.name = name;

    }

​

}