How to get Numbers from user store them until they type -1 and than add all the numbers up toghterr

Question

Hey i am trying to figure out the best way to get numbers from a user and than once the user types -1 it will add up all the numbers

Answer 1

This does as your question's described, you can test it here

using System;
using System.Text;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
                    
public class Program
{
    public static void Main()
    {
        List<int> numbers = new List<int>();
        Console.WriteLine("Enter your numbers below, 1 per line");
        string input = "";
        int inputNumber = 0;
        while((input = Console.ReadLine()) != "-1"){
            if(int.TryParse(input, out inputNumber)){
               numbers.Add(inputNumber);
            }
        }
        int sum = numbers.Sum();
        Console.WriteLine("Total Sum: " + sum);
    }
    
}