IEnumerator and ArrayList, BitArray, Hashtable and array : IEnumerator « Data Structure « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Structure
3. IEnumerator

using System;
using System.Collections;

  class Class1
  {
    [STAThread]
    static void Main(string[] args)
    {
            int[] intArr = {1, 2, 3, 4, 5};
            
            ArrayList al = new ArrayList( intArr );

            bool[] baVals = { true, true, false, false, true };
            BitArray ba = new BitArray( baVals );

            Hashtable ht = new Hashtable();
            ht.Add( 1, "one" );
            ht.Add( 2, "two" );
            ht.Add( 3, "three" );
            ht.Add( 4, "four" );
            ht.Add( 5, "five" );

            PrintCollection( "Integer Array", intArr.GetEnumerator() );   
            PrintCollection( "ArrayList", al.GetEnumerator() );
            PrintCollection( "BitArray", ba.GetEnumerator() );
            PrintCollection( "Hashtable", ht.GetEnumerator() );
    }

        static void PrintCollection( string name, IEnumerator collEnum )
        {
            Console.WriteLine( collEnum.GetType().ToString() );
            Console.WriteLine( name );
            while( collEnum.MoveNext() )
            {
                if( collEnum.Current.GetType() == Type.GetType("System.Collections.DictionaryEntry") )
                {
                    Console.Write( ((DictionaryEntry) collEnum.Current).Value.ToString() + " " );
                }
                else
                {
                    Console.Write( collEnum.Current.ToString() + " " );
                }
            }
        }
  }