public void AddElements()
{
    int collectionLength = Int32.Parse(Console.ReadLine());
    for (int key = 0; key < collectionLength; key++)
        internalHashtable.Add(RandomClass.CreateRandomString(), key);
}

public void ShowElements()
{
    foreach (var s in internalHashtable)
    Console.WriteLine("{0}t", s);
}

public void ShowElements()
{
   foreach (DictionaryEntry s in internalHashtable)
      Console.WriteLine("{0}:t{1}", s.Key, s.Value);
}