using System;

​

// 2nd, come here for an example class that is "implementing" the interface below

public class Rectangle : shape

{

    // fields and properties

    private double length;

    private double height;

    // Property implementation that IS REQUIRED by the interface

    public double Length

    {

        get

        {

            return length;

        }

        set

        {

            length = value;

        }

    }

    public double Height

    {

        get

        {

            return height;

        }

        set

        {

            length = value;

        }

    }

​

    // Method that IS REQUIRED by the interface

    public void GetArea()

    {

        Console.WriteLine("Getting Area!");

    }

    // constructor

    public Rectangle(double i,j)

    {

        length = i;

        height = j;

    }

    public static void Main()

    {

        // Create an instance of a Cup of Coffee Class

        double i = 12;

        Rectangle myRectangle = new Rectangle(i);

        double j = 12;

        Rectangle myRectangle = new Rectangle(j);

        Console.WriteLine("myRectangle's height value is:" + myRectangle.Height);

        // let's change the value of Instant

        MyRectangle.height = 13;

        Console.WriteLine("myRectangle's height value is:" + myRectangle.Height);

    }

}

​

// Start here: the interface

interface shape

{

    double length

    {

        get;

        set;

    }

        double height

    {

        get;

        set;

    }

    void GetArea();

}

​