Queue<T> in C#
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Namespace :- System.Collections.Generic
Assembly :- System.Collections.dll
Signature :-
public class Queue<T> :
System.Collections.Generic.IEnumerable<T>,
System.Collections.Generic.IReadOnlyCollection<T>,
System.Collections.ICollection- Queue operates on the first-in-first-out (FIFO) principle.
- You should use Queue where you need to access the information/data in order that it is stored.
- Queue can store duplicate elements.
- Queue can store null.
- Queue is not Thread Safe.
Queue<T> Constructors
- public Queue ();
- public Queue (System.Collections.Generic.IEnumerable<T> collection);
- public Queue (int capacity);
Queue<T> Properties
- Count :- public int Count { get; }Gets the number of elements that are actually present in the Queue<T>.
Creating and adding element in Queue<T>
using System;
using System.Collections.Generic;
class Program
{
static void Main()
{
var queue = new Queue<string>();
queue.Enqueue("Python");
queue.Enqueue("Java");
queue.Enqueue("C#");
queue.Enqueue("React");
queue.Enqueue("C++");
Console.WriteLine("Peek element :- "+ queue.Peek());
Console.WriteLine("Dequeue :- "+ queue.Dequeue());
Console.WriteLine("After Dequeue, Peek element :- " + queue.Peek());
}
}Peek element :- Python Dequeue :- Python After Dequeue, Peek element :- Java