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

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:

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// 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));
    }
}

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Output:

True

Example 2:

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// 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));
    }
}

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Output:

False
True

Note: If the current instance is a reference type, the Equals(Object) method checks for reference equality.



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