ex-09-16

Programming Csharp Source Code(代码) Programming Csharp Source Code

// Example 09-16: Working with a Stack

namespace Programming_CSharp
{
   using System;
   using System.Collections;
  
   // a simple class to store in the array
   public class Tester
   {
      static void Main()
      {
         Stack intStack = new Stack();

         // populate the array
         for (int i = 0;i<8;i++)
         {
            intStack.Push(i*5);
         }

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

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

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

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

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

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

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

         // declare an array object which will 
         // hold 12 integers
         Array targetArray=Array.CreateInstance( 
            typeof(int), 12  );

         targetArray.SetValue( 100, 0 );
         targetArray.SetValue( 200, 1 );
         targetArray.SetValue( 300, 2 );
         targetArray.SetValue( 400, 3 );
         targetArray.SetValue( 500, 4 );
         targetArray.SetValue( 600, 5 );
         targetArray.SetValue( 700, 6 );
         targetArray.SetValue( 800, 7 );
         targetArray.SetValue( 900, 8 );

         // Display the values of the target Array instance.
         Console.WriteLine( "\nTarget array:  ");
         PrintValues( targetArray );

         // Copy the entire source Stack to the  
         // target Array instance, starting at index 6.
         intStack.CopyTo( targetArray, 6 );

         // Display the values of the target Array instance.
         Console.WriteLine( "\nTarget array after copy:  ");
         PrintValues( targetArray );

         // Copy the entire source Stack 
         // to a new standard array.
         Object[] myArray = intStack.ToArray();

         // Display the values of the new standard array.
         Console.WriteLine( "\nThe new  array:" );
         PrintValues( myArray );
      }

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