4. Write a program that should accept two numbers from the users and perform the following mathematical operations: Addition Subtraction Multiplication Division In case of division, an error message should be displayed if the second number is zero. (Duration: 35 min)

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

namespace all_operation_accept_2_number
{
    class Program
    {
      public void addition(int n1,int n2)
        {
            int sum = n1 + n2;
            Console.WriteLine("Sum :" + sum);
        }
      public void subtraction(int n1, int n2)
      {
          int sub = n1 - n2;
          Console.WriteLine("Subtraction:" + sub);
      }
      public void multiplication(int n1, int n2)
      {
          int mul = n1 * n2;
          Console.WriteLine("Multiplication:" + mul);
      }
      public void division(int n1, int n2)
      {
          if (n2 == 0)
          {
              Console.WriteLine("Can't devided by zero");
          }
          else
          {
              int div = n1 / n2;
              Console.WriteLine("Devision:" + div);
          }
      }
        static void Main(string[] args)
        {
            Console.WriteLine("Enter two number:");
            int n1 = Convert.ToInt32(Console.ReadLine());
            int n2 = Convert.ToInt32(Console.ReadLine());
            Program obj = new Program();
            Console.WriteLine("Results:-\n");
            obj.addition(n1,n2);
            obj.subtraction(n1, n2);
            obj.multiplication(n1, n2);
            obj.division(n1, n2);
            Console.ReadLine();
        }
    }
}