Techknow_Study

Program-3 :{circle_area}

C#

Program-3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace circle_area
{
    class Program
    {
        static void Main(string[] args)
        {
            circle x = new circle(3.5);
            double Area = x.CalArea();
            Console.WriteLine(“the area of circle is: {0}”, Area);
            Console.ReadLine();
        }
    }
    class circle
    {
        private const double C = 3.14;
        private double radius;
        public circle()
        {
        }
        public circle(double radius)
        {

            this.radius = radius;
        }
        public double Radius
        {
            get { return radius; }
            set { radius = value; }
        }
        public double CalArea()
        {
            return C * radius * radius;
        }
    }
}

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