C# ExerciseNullableType

//Create a program that assigns null values to an integer and to double variables. Try to print them on the console, try to add some values or the null literal to them and see the result.


using System;

    class ExerciseNullableType
    {
        static void Main()
        {
            int? firstNumber = null;
            Console.WriteLine("The value of the first number is: {0}!", firstNumber);

            firstNumber = 3;
            Console.WriteLine("The same number with new assigned value of 3 is equal to -> {0}!", firstNumber);
            Console.WriteLine();

            double? secondNumber = null;
            Console.WriteLine("The value of the second number is: {0}!", secondNumber);

            secondNumber = 10.5;
            Console.WriteLine("The same second number with new assigned value of 10.5 is equal to -> {0}!", secondNumber);

        }
    }