C# | Removing all nodes from LinkedList<T>

Last Updated : 01 Feb, 2019

LinkedList<T>.Clear method is used to remove the all nodes from the LinkedList<T>. Syntax:

public void Clear ();

Below given are some examples to understand the implementation in a better way: Example 1:

CSHARP

// C# code to remove all
// nodes from LinkedList
using System;
using System.Collections;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {
        // Creating a LinkedList of Strings
        LinkedList<String> myList = new LinkedList<String>();

        // Adding nodes in LinkedList
        myList.AddLast("A");
        myList.AddLast("B");
        myList.AddLast("C");
        myList.AddLast("D");
        myList.AddLast("E");

        // To get the count of nodes in LinkedList
        // before removing all the nodes
        Console.WriteLine("Total nodes in myList are : " + myList.Count);

        // Removing all nodes from LinkedList
        myList.Clear();

        // To get the count of nodes in LinkedList
        // after removing all the nodes
        Console.WriteLine("Total nodes in myList are : " + myList.Count);
    }
}

Output:

Total nodes in myList are : 5
Total nodes in myList are : 0

Example 2:

CSHARP

// C# code to remove all
// nodes from LinkedList
using System;
using System.Collections;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {
        // Creating a LinkedList of Integers
        LinkedList<int> myList = new LinkedList<int>();

        // Adding nodes in LinkedList
        myList.AddLast(2);
        myList.AddLast(4);
        myList.AddLast(6);

        // To get the count of nodes in LinkedList
        // before removing all the nodes
        Console.WriteLine("Total nodes in myList are : " + myList.Count);

        // Removing all nodes from LinkedList
        myList.Clear();

        // To get the count of nodes in LinkedList
        // after removing all the nodes
        Console.WriteLine("Total nodes in myList are : " + myList.Count);
    }
}

Output:

Total nodes in myList are : 3
Total nodes in myList are : 0

Note:

Count is set to zero, and references to other objects from elements of the collection are also released.
First and Last are set to null.
This method is an O(n) operation, where n is Count.

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.linkedlist-1.clear?view=netframework-4.7.2

C# | Adding new node or value at the start of LinkedList<T>

Sahil_Bansall

Improve

Article Tags :

C# | Removing all nodes from LinkedList<T>

Similar Reads

Thank You!

What kind of Experience do you want to share?