Skip to content
Related Articles

Related Articles

C# | Get the first node of the LinkedList<T>
  • Last Updated : 01 Feb, 2019

LinkedList<T>.First property is used to get the first node of the LinkedList<T>.

Syntax:

public System.Collections.Generic.LinkedListNode First { get; }

Return Value: The first LinkedListNode<T> of the LinkedList<T>.

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

Example 1:






// C# code to get the first
// node of the 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("Geeks");
        myList.AddLast("for");
        myList.AddLast("Data Structures");
        myList.AddLast("Noida");
  
        // To get the first node of the LinkedList
        if (myList.Count > 0)
            Console.WriteLine(myList.First.Value);
        else
            Console.WriteLine("LinkedList is empty");
    }
}

Output:

Geeks

Example 2:




// C# code to get the first
// node of the 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>();
  
        // To get the first node of the LinkedList
        if (myList.Count > 0)
            Console.WriteLine(myList.First.Value);
        else
            Console.WriteLine("LinkedList is empty");
    }
}

Output:

LinkedList is empty

Note:

  • LinkedList accepts null as a valid Value for reference types and allows duplicate values.
  • If the LinkedList is empty, the First and Last properties contain null.
  • Retrieving the value of this property is an O(1) operation.

Reference:

My Personal Notes arrow_drop_up
Recommended Articles
Page :