using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApplication3

{

    class Program

    {

        static void Main(string[] args)

        {

            GenericCalculator<string> g1 = new GenericCalculator<string>();

            Console.WriteLine(g1.Add("Hello", "World"));

            Console.WriteLine(g1.Multiply("Hello", "World"));

​

            GenericCalculator<float> g2 = new GenericCalculator<float>();

            Console.WriteLine(g2.Add(5.1f, 3.2f));

​

            Console.ReadKey();

        }

    }

​

​

    public class GenericCalculator<T>

    {

        public T Add(T n1,T n2)

        {

            dynamic a = n1;

            dynamic b = n2;

            return a + b;

        }

        public T Subtract(T n1, T n2)

        {

            dynamic a = n1;

            dynamic b = n2;

            return a - b;

        }

        public T Multiply(T n1, T n2)

        {

            dynamic a = n1;

            dynamic b = n2;

            try

            {

                return a * b;

            }

            catch(Exception e)

            {

​

                return e;

            }

        }

        public T Divide(T n1, T n2)

        {

            dynamic a = n1;

            dynamic b = n2;

            return a / b;

        }

    }

}

​