How to create Arraylist and HashTable in asp.net

Creating Arraylist in VB.NET and sort that

dim mycountries=New ArrayList

mycountries.Add("India")

mycountries.Add("USA")

mycountries.Add("Pakisatn")

mycountries.Add("Italy")

mycountries.TrimToSize()

mycountries.Sort()

Creating Hashtable in VB.NET

dim mycountries=New Hashtable

mycountries.Add("N","Norway")

mycountries.Add("S","Sweden")

mycountries.Add("F"

,"France")

mycountries.Add("I","Italy")