阿老师，为什么我将方法的返回类型和参数类型都该成了double类型后，调用不会报异常呢？

    public class Calculator
    {
        public int Devide(int numerator, int denomenator)
        {
            return numerator / denomenator;
        }

        public double Devide(double numerator, double denomenator)
        {
            return numerator / denomenator;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            var calculator = new Calculator();
            var result1 = calculator.Devide(5.0, 0.0);
            var result2 = calculator.Devide(2,0);
            Console.WriteLine(result1);
            Console.WriteLine(result2);// error
            Console.ReadKey();
        }
    }