using System.Collections.Generic;
using System.Threading.Tasks;
namespace ConsoleApplication1
public double add(double x, double y)
public double multi(double x, double y)
public double sub(double x, double y)
public double divide(double x, double y)
catch (DivideByZeroException)
Console.WriteLine("Second number cannot be Zero");
Calculator calc = new Calculator();
Console.WriteLine(calc.divide(6, 0));