santosh-asp tutorial

Queue Class:-

Queue Class:-

It represents a first-in, first out collection of object.
It is used when you need a first-in, first-out access of items.
When you add an item in the list, it is called enqueue, and when you remove an item, it is called deque.

Methods and Properties of the Queue Class:-

Methods of the Queue Class:-

Sr.No.	Methods
1	public virtual void Clear(); Removes all elements from the Queue.
2	public virtual bool Contains(object obj); Determines whether an element is in the Queue.
3	public virtual object Dequeue(); Removes and returns the object at the beginning of the Queue.
4	public virtual void Enqueue(object obj); Adds an object to the end of the Queue.
5	public virtual object[] ToArray(); Copies the Queue to a new array.
6	public virtual void TrimToSize(); Sets the capacity to the actual number of elements in the Queue.

Properties of the Queue Class:-

Property	Description
Count	Gets the number of elements contained in the Queue.

Example of Queue:-

  

using System;
using System.Collections;

class QueueDemo
{
    public QueueDemo()
    {
        Console.WriteLine("This is queue demo::\n");
    }

    public void Show()
    {
        Queue q = new Queue();

        q.Enqueue('S');
        q.Enqueue('A');
        q.Enqueue('N');
        q.Enqueue('T');
        q.Enqueue('O');
        q.Enqueue('S');
        q.Enqueue('H');

        Console.WriteLine("Current queue: ");
        foreach (char c in q) Console.Write(c + " ");

        Console.WriteLine();
        q.Enqueue('H');
        q.Enqueue('S');
        Console.WriteLine("Current queue: ");
        foreach (char c in q) Console.Write(c + " ");

        Console.WriteLine();
        Console.WriteLine("Removing some values ");
        char ch = (char)q.Dequeue();
        Console.WriteLine("The removed value: {0}", ch);
        ch = (char)q.Dequeue();
        Console.WriteLine("The removed value: {0}", ch);

        Console.ReadKey();
    }
}

class Test
{
    static void Main(string[] args)
    {       
        QueueDemo objQe = new QueueDemo();
        objQe.Show();
        Console.ReadLine();
    }
}