Hi all, i'm quite a beginner in C# , i tried to write a program that extract words from an entered string, the user has to enter a minimum length for the word to filter the words output ... my code doesn't look good or intuitive, i used two arrays countStr to store words , countArr to store word length corresponding to each word .. but the problem is i need to use hashtables instead of those two arrays , because both of their sizes are depending on the string length that the user enter , i think that's not too safe for the memory or something ?

here's my humble code , again i'm trying to replace those two arrays with one hashtable , how can this be done ?

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

namespace ConsoleApplication2
{
class Program
{

    static void Main(string[] args)
    {
        int i = 0 ;
        int j = 0;
        string myString = "";
        int counter = 0;
        int detCounter = 0;          

        myString = Console.ReadLine();
        string[] countStr = new string[myString.Length];
        int[] countArr = new int[myString.Length];

        Console.Write("Enter minimum word length:");
        detCounter = int.Parse(Console.ReadLine());

        for (i = 0; i < myString.Length; i++)
        {
            if (myString[i] != ' ')
            {
                counter++;
                countStr[j] += myString[i];
            }
            else
            {
                countArr[j] = counter;
                counter = 0;
                j++;
            }                                               
        }

        if (i == myString.Length)
        {
            countArr[j] = counter;
        }

        for (i = 0; i < myString.Length ; i++)
        {
           if (detCounter <= countArr[i])
            {
                Console.WriteLine(countStr[i]);
            }   
        }

     Console.ReadLine();     

    }        
  }
 }