Queue Class

Represents a first-in, first-out collection of objects.

Definition

public class Queue: Object, ICollection, ICloneable

Members Table

The following table lists the members exposed by the Queue object. Click a tab on the left to choose the type of member you want to view.

Methods

Method	Description
Clear	Removes all objects from the Queue.
Clone	Creates a shallow copy of the Queue.
Contains	Determines whether an element is in the Queue.
CopyTo	Copies the Queue elements to an existing one-dimensional Array instance at the specified index.
Dequeue	Removes and returns the object at the beginning of the Queue.
Enqueue	Adds an object to the end of the Queue.
Equals	Overloaded. Compares two objects to determine if they are equal. (Inherited from Object)
GetEnumerator	Returns an enumerator that can iterate through the Queue.
GetHashCode	Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures like a hash table. (Inherited from Object)
GetType	Gets the Type of the current instance. (Inherited from Object)
Peek	Returns the object at the beginning of the Queue without removing it.
Queue	Overloaded. Initializes a new instance of Queue.
ReferenceEquals	Determines whether the specified Object instances are the same instance. (Inherited from Object)
Synchronized	Returns a Queue wrapper that is synchronized.
ToArray	Copies the Queue elements to a new array.
ToString	Returns a String that represents the current Object. (Inherited from Object)
TrimToSize	Sets the capacity to the actual number of elements in the Queue.

Properties

Property	Description
Count	Gets the number of elements contained in the Queue.
IsSynchronized	Gets a value indicating whether access to the Queue is synchronized.
SyncRoot	Gets an object that can be used to synchronize access to the Queue.

Inheritance Hierarchy

Object

Queue

Examples

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// This sample shows how to implement the Queue class.

 

using System.Diagnostics;

using System.Collections;

 

public class SampleQueue

{

     static void Main()

     {

          // Creates a new Queue.

          Queue myDaysQueue = new Queue();

 

          // Initializes for the Queue.

          myDaysQueue.Enqueue("Monday");

          myDaysQueue.Enqueue("Tuesday");

          myDaysQueue.Enqueue("Wednesday");

          myDaysQueue.Enqueue("Thursday");

          myDaysQueue.Enqueue("Friday");

          myDaysQueue.Enqueue("Saturday");

          myDaysQueue.Enqueue("Sunday");

 

          // Displaying .

          Debug.WriteLine("The number of elements in the Queue: " + myDaysQueue.Count);

          Debug.WriteLine("\nThe values of the Queue:");

          DisplayQueue(myDaysQueue);

     }

 

     static void DisplayQueue(IEnumerable myCollection )

     {

          IEnumerator myIEnum = myCollection.GetEnumerator();

          while (myIEnum.MoveNext())

            Debug.WriteLine("\t\t" +myIEnum.Current);

     }

}

 

/*

The output of the sample.

 

The number of elements in the Queue: 7

 

The value of the Queue:

          Monday

          Tuesday

          Wednesday

          Thursday

          Friday

          Saturday

          Sunday

*/

 

Class Information

Namespace	System.Collections
Flash Library	corlib.scl
Flash Library Version	2.0.0.2466
Silverlight Library	System.Windows.Forms.dll