//Rextester.Program.Main is the entry point for your code. Don't change it. //Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5
using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions;
namespace Rextester {
public interface Geo {
double arie(); double perimetru(); string nume{get;}
} public class Cerc : Geo { double r;
string forma="cerc"; public string nume{ get{ return forma; } } public double arie() {
return r*r*System.Math.PI; } public double perimetru() {
return 2*r*System.Math.PI; } public Cerc (double x) {
r=x; } } public class Patrat : Geo {
double l; string forma="patrat";
public string nume{
get{ return forma; } } public double arie() {
return l*l; } public double perimetru() {
return 4*l; } public Patrat(double x) {l=x;}
} public class Program {
static void Print(Geo I){
Console.WriteLine("Perimetru {2}: {0:#.##} Arie {2}: {1:#.##}" ,I.perimetru(),I.arie(),I.nume);
} public static void Main(string[] args) {
Cerc o = new Cerc(5); Patrat abcd = new Patrat(4); Print(abcd); Print(o);
} } }