using System;

​

namespace encapsulation{

    public class RectangleApplication{

        public double length;

        public double width;

        public double GetArea(){

             return length * width;

         }

        public void Display(){

            Console.WriteLine("Length: {0}", length);

            Console.WriteLine("Width: {0}", width);

            Console.WriteLine("Area: {0}", GetArea());

        }

    }

    public class ExecuteRactangle{

        public static void Main(string[] args){

            RectangleApplication r = new RectangleApplication();

            r.length = 4.5;

            r.width = 3.5;

            r.Display();    

        }

    }

}