Can someone please explain this code.

Quote:

I'm unable to figure out how my code is working.

Quote:

There is an almost universal solution: Run your code on debugger step by step, inspect variables.
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't know what your is supposed to do, it don't find bugs, it just help you to by showing you what is going on. When the code don't do what is expected, you are close to a bug.
To see what your code is doing: Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.
Debugger - Wikipedia, the free encyclopedia[^]

Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]
Basic Debugging with Visual Studio 2010 - YouTube[^]
Debugging C# Code in Visual Studio - YouTube[^]
The debugger is here to only show you what your code is doing and your task is to compare with what it should do.

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

namespace Ch4ExQ7
{
    class Program
    {
        static void Main(string[] args)

   Console.Write("How many numbers to sum?: ");
            int num = int.Parse(Console.ReadLine());
            int sum = 0;
            bool parseTry = false;  // parseTry is defined here as after initialising it in the for loop
                            // its scope is limited to that loop only.

            Console.WriteLine("Enter your numbers: ");
            {
                int num_count = 0;
                for (int i = 1; i <= num; i++)
                {
                    parseTry = false; // Here you have to initialize parseTry variable to false overagain
                       
                    // Implement a loop during each iteration of which you will scan a string value of number by using Console.ReadLine() and store the result into str variable              
                    do {
                           string str = Console.ReadLine();
                           // Convert the stringified numeric value to integer by using Int32.TryParse method
                           parseTry = Int32.TryParse(str, out int parsed);

                           // If the convertion was suceessful, then accumulate the value of parsed by summing it up with sum variable and increment the count of valid numbers entered num_count by 1.
                           if (parseTry == true)
                           {
                               sum += parsed; num_count++;
                           }
                           else
                           {
                               // If not, pring the assertion method
                               Console.WriteLine("Enter only integers.");
                           }
                    // Proceed with next iteration until you've entered a valid numeric value
                    }while(parseTry == false);

                }
                // If the number of entered values is at least equals to 3
                if (num_count >= 3)
                {
                    // Print out the value of sum variable containing an accumulated total sum value
                    Console.WriteLine("Your sum is: " + sum); //Why this sentence is printed while in the Main() method parseTry is set to false
                }
           }
   }
}