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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