Demonstrate the Queue class : Queue « Collections Data Structure « C# / C Sharp

1. C# / C Sharp
2. Collections Data Structure
3. Queue

Demonstrate the Queue class

   
/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/

// Demonstrate the Queue class. 
 
using System; 
using System.Collections; 
  
public class QueueDemo { 
  static void showEnq(Queue q, int a) { 
    q.Enqueue(a); 
    Console.WriteLine("Enqueue(" + a + ")"); 
 
    Console.Write("queue: "); 
    foreach(int i in q) 
      Console.Write(i + " "); 
 
    Console.WriteLine();         
  } 
 
  static void showDeq(Queue q) { 
    Console.Write("Dequeue -> "); 
    int a = (int) q.Dequeue(); 
    Console.WriteLine(a); 
 
    Console.Write("queue: "); 
    foreach(int i in q) 
      Console.Write(i + " "); 
 
    Console.WriteLine();         
  } 
 
  public static void Main() { 
    Queue q = new Queue(); 
 
    foreach(int i in q) 
      Console.Write(i + " "); 
 
    Console.WriteLine();         
 
    showEnq(q, 22); 
    showEnq(q, 65); 
    showEnq(q, 91); 
    showDeq(q); 
    showDeq(q); 
    showDeq(q); 
 
    try { 
      showDeq(q); 
    } catch (InvalidOperationException) { 
      Console.WriteLine("Queue empty."); 
    } 
  } 
}


           
         
    
    
  

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