Question

Prompt the user to input their lucky number. Upon getting the users input, validate that the input is a valid number using Int32.TryParse (more info can be found at https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/how-to-convert-a-string-to-a-number (Links to an external site.)). If the input is not a valid number, output a message to the user stating that you are sorry but you are unable to run the FizzBuzz process due to the input not being a valid number. If the input is valid, you are clear to start the FizzBuzz process. If the input is divisible by 3, then output {number} Fizz. If the input is divisible by 5, then output {number} Buzz. If the input is divisible by 3 AND 5, output {number} FizzBuzz. If it is not divisible by either 3 or 5, simply just output the number.

Answer 1

/* Please read the comments and see the output*/

using System;

using System.IO;

class FizBuzz

{

    public static void Main() {

        string input; // For reading input

        int num;      // To store the int value if input is valid

        bool isValidInput;  // Boolean variable to check input is valid is or not

        do {

            Console.WriteLine("Enter Lucky Number: ");

            input  = Console.ReadLine(); // Read user input

            isValidInput = int.TryParse(input,out num); // Check input is integer or not

            if(!isValidInput)  // If input is not valid, show error message

                Console.WriteLine("you are sorry but you are unable to run the FizzBuzz process due to the input not being a valid number.");

        }while(!isValidInput);  // Run this until, user give correct input

        string result =""; // Variable to keep the result for the valid input integer

         if(num % 15 == 0)  result = num + "  FizzBuzz"; // DECIDE parameter for BUZ FIZZ GAME

        else if(num % 3 == 0 )  result = num + " Fizz";

        else if(num % 5 == 0)  result = num + " Buzz";

        else result = ""+ num;

        Console.WriteLine(result);   // Show the result

        Console.WriteLine("PRESS enter for exit"); // Exit of game

        Console.ReadLine();

    }

}

/* OUTPUT*/