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Showing content from https://www.geeksforgeeks.org/c-sharp/c-sharp-check-if-two-linkedlistt-objects-are-equal/ below:

C# | Check if two LinkedList<T> objects are equal

Last Updated : 11 Jul, 2025

Equals(Object) Method

which is inherited from the Object class is used to check if a specified

LinkedList<T>

object is equal to another LinkedList<T> object or not.

Syntax:

public virtual bool Equals (object obj);

Here,

obj

is the object which is to be compared with the current object.

Return Value:

This method return

true

if the specified object is equal to the current object otherwise it returns

false

. Below programs illustrate the use of above-discussed method:

Example 1: CSharp


 // C# program to if a LinkedList object
// is equal to another LinkedList object
using System;
using System.Collections.Generic;

class Geeks {

    // Main Method
    public static void Main(String[] args)
    {

        // Creating a LinkedList of Strings
        LinkedList<String> myList1 = new LinkedList<String>();

        // Adding nodes in LinkedList
        myList1.AddLast("Geeks");
        myList1.AddLast("for");
        myList1.AddLast("Data Structures");
        myList1.AddLast("Noida");

        // Checking whether myList1 is
        // equal to itself or not
        Console.WriteLine(myList1.Equals(myList1));
    }
}

Example 2: CSharp


 // C# program to if a LinkedList object
// is equal to another LinkedList object
using System;
using System.Collections.Generic;

class Geeks {

    // Main Method
    public static void Main(String[] args)
    {

        // Creating a LinkedList of Strings
        LinkedList<String> myList1 = new LinkedList<String>();

        // Adding nodes in LinkedList
        myList1.AddLast("C");
        myList1.AddLast("C++");
        myList1.AddLast("Java");
        myList1.AddLast("C#");

        // Creating a LinkedList of Integers
        LinkedList<int> myList2 = new LinkedList<int>();

        // Adding nodes in LinkedList
        myList2.AddLast(2);
        myList2.AddLast(4);
        myList2.AddLast(6);
        myList2.AddLast(8);

        // Checking whether myList1 is
        // equal to myList2 or not
        Console.WriteLine(myList1.Equals(myList2));

        // Creating a LinkedList of Integers
        LinkedList<int> myList3 = new LinkedList<int>();

        // Assigning myList2 to myList3
        myList3 = myList2;

        // Checking whether myList3 is
        // equal to myList2 or not
        Console.WriteLine(myList3.Equals(myList2));
    }
}

Note:

If the current instance is a reference type, the

Equals(Object) method

checks for reference equality.

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