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

namespace CSharpGreatestNumber
{
    class Program
    {
        static void Main(string[] args)
        {
            //try...catch: is used to catch any unexpected behavior during execution time.
            // WHEN an exception is thrown inside the "try" block, the code inside the "catch" block
            // is executed instead of halting the program 

            // In our case here, when the user enters a non-integer operand a format exception
            // will be thrown and catched
            try
            {
                //Declaring variables
                int intFirst;
                int intSecond;
                int intThird;

                //Holder of the maximum value among the 3 integers
                int maxValue;

                //Prompt the user to enter the first integer
                Console.WriteLine("Please enter the first integer: ");
                intFirst = int.Parse(Console.ReadLine());

                //Prompt the user to enter the second integer
                Console.WriteLine("Please enter the second integer: ");
                intSecond = int.Parse(Console.ReadLine());

                //Prompt the user to enter the third integer
                Console.WriteLine("Please enter the third integer: ");
                intThird = int.Parse(Console.ReadLine());

                //Getting the max value
                //Compare the numbers to find out which is the highest number
                maxValue = intFirst;

                if (intSecond > maxValue)
                    maxValue = intSecond;
                if (intThird > maxValue)
                    maxValue = intThird;

                //Show the largest Number
                Console.WriteLine("\nThe largest number entered is: {0}\n", maxValue);

            }
            catch (FormatException)
            {
                //Alert the user that he didn't enter a whole number
                Console.WriteLine("You didn't enter a whole number!");
            }//End of catch
            Console.WriteLine("Please press any key to Exit");
            Console.Read();
        }
    }
}