Putting array with unknown variables into another array - arrays

Question

The purpose of this code is is to define the root of the sum of the squares.
I cant figure out how to put i into j. Please help.
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
int input, som, i=0;
int j = 0;
double answer;
Boolean gaDoor= true;
int [] array = new int [24];
while (gaDoor)
{
Console.Write("Specify a positive integer");
input = Convert.ToInt32(Console.ReadLine());
if (input == -1)
{
gaDoor = false;
}
else
{
if (input >= 0)
{
array[i] = input;
i++;
}
else
{
Console.WriteLine("Specify a positive integer ");
}
}
}
while (j<i)
{
sum = array [j] ^ 2;
answer = Math.Sqrt(sum);
Console.Write(answer);
}
Console.ReadKey();
}
}
}

Answer 1

using System;
namespace Test
{
class MainClass
{
public static void Main (string[] args)
{
int[] invoer = new int[24];
double[] resultaat = new double[24];
double totaal = 0;
double wortel = 0;
int commando = 0;
int teller = -1;
try {
// Keep going until a negative integer is entered (or a 0)
while ((commando = Convert.ToInt32 (Console.ReadLine ())) > 0) {
teller++;
invoer [teller] = commando;
}
} catch (FormatException) {
// Not a number at all.
}
teller = -1;
foreach (int i in invoer) {
teller++;
resultaat [teller] = Math.Pow (invoer [teller], 2);
totaal += resultaat [teller];
if (invoer [teller] > 0) {
Console.WriteLine ("Invoer: {0}, Resultaat: {1}", invoer [teller], resultaat [teller]);
}
}
wortel = Math.Sqrt (totaal);
Console.WriteLine ("Totaal: {0}, Wortel: {1}", totaal, wortel);
}
}
}