using
System;using
System.Collections.Generic;using
System.Text;namespace
ConsoleApplication1{
class Program{
static void Main(string[] args){
Console.WriteLine("Enter One Number:"); int x = int.Parse(Console.ReadLine() );Circle c =
new Circle(x); Console.WriteLine("{0}\n{1}",c.Area(),c.P1()); Console.ReadLine();}
}
/**********************************************************/ class Circle{
private int r; public Circle(int n){
r = n;
}
public double Area(){
return r * r * 3.14;}
public double P1(){
return 2 * r * 3.14;}
~Circle()
{
r = 0;
}
}
}
