Equals(Object) Method which is inherited from the Object class is used to check if a specified List<T> object is equal to another List<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:
// C# program to if a List object // is equal to another List object using System;
using System.Collections.Generic;
class Geeks {
// Main Method
public static void Main(String[] args)
{
// Creating an List<T> of Integers
List< int > firstlist = new List< int >();
// Adding elements to List
firstlist.Add(17);
firstlist.Add(19);
firstlist.Add(21);
firstlist.Add(9);
firstlist.Add(75);
firstlist.Add(19);
firstlist.Add(73);
// Checking whether firstlist is
// equal to itself or not
Console.WriteLine(firstlist.Equals(firstlist));
}
} |
Output:
True
Example 2:
// C# program to if a List object // is equal to another List object using System;
using System.Collections.Generic;
class Geeks {
// Main Method
public static void Main(String[] args)
{
// Creating a List of strings
List< string > list1 = new List< string >();
// Inserting elements in List
list1.Add( "DS" );
list1.Add( "C++" );
list1.Add( "Java" );
list1.Add( "JavaScript" );
// Creating an List<T> of Integers
List< int > list2 = new List< int >();
// Adding elements to List
list2.Add(78);
list2.Add(44);
list2.Add(27);
list2.Add(98);
list2.Add(74);
// Checking whether list1 is
// equal to list2 or not
Console.WriteLine(list1.Equals(list2));
// Creating a List of integers
List< int > list3 = new List< int >();
// Assigning list2 to list3
list3 = list2;
// Checking whether list3 is
// equal to list2 or not
Console.WriteLine(list3.Equals(list2));
}
} |
Output:
False True
Note: If the current instance is a reference type, the Equals(Object) method checks for reference equality.