Question

Using loops, write a C# program that asks the user to enter repeatedly an integer number, it stops when the user enters -1, then the program should display how many numbers were entered, their the sum and their average

Answer 1

/*
 *  C# Program
 *  Enter numbers till -1, calculate sum and average
 */

using System;

class MainClass
{
  public static void Main (string[] args)
  {
    Console.Write("Enter numbers (-1 to stop): \n");
    int num = 0, count = 0;
    double sum = 0, avg = 0;
    
    while (num != -1)
    {
      num = Convert.ToInt32(Console.ReadLine());

      sum += num;
      count++;
    }

    avg = sum/count;

    Console.Write("Sum: {0}\n", sum);
    Console.Write("Average: {0}\n", avg);
  }
}

/*  Program ends here */