ex-09-15

Programming Csharp Source Code(代码) Programming Csharp Source Code

// Example 09-15: Working with a queue

namespace Programming_CSharp
{
   using System;
   using System.Collections;
  
   public class Tester
   {

      static void Main()
      {
         Queue intQueuee = new Queue();

         // populate the array
         for (int i = 0;i<5;i++)
         {
            intQueuee.Enqueue(i*5);
         }

         // Display the Queue.
         Console.Write( "intQueuee values:\t" );
         PrintValues( intQueuee );

         // Remove an element from the queue.
         Console.WriteLine( 
            "\n(Dequeue)\t{0}", intQueuee.Dequeue() );

         // Display the Queue.
         Console.Write( "intQueuee values:\t" );
         PrintValues( intQueuee );

         // Remove another element from the queue.
         Console.WriteLine( 
            "\n(Dequeue)\t{0}", intQueuee.Dequeue() );

         // Display the Queue.
         Console.Write( "intQueuee values:\t" );
         PrintValues( intQueuee );

         // View the first element in the 
         // Queue but do not remove.
         Console.WriteLine( 
            "\n(Peek)   \t{0}", intQueuee.Peek() );

         // Display the Queue.
         Console.Write( "intQueuee values:\t" );
         PrintValues( intQueuee );

      }

      public static void PrintValues( IEnumerable myCollection )  
      {
         IEnumerator myEnumerator = 
            myCollection.GetEnumerator();
         while ( myEnumerator.MoveNext() )
            Console.Write( "{0} ",myEnumerator.Current );
         Console.WriteLine();
      }

   }
}