C# | Check if two HashSet<T> objects are equal Last Updated : 01 Feb, 2019 Comments Improve Suggest changes Like Article Like Report Equals(Object) Method which is inherited from the Object class is used to check if a specified HashSet<T> object is equal to another HashSet<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 HashSet object // is equal to another HashSet object using System; using System.Collections.Generic; class Geeks { // Main Method public static void Main(String[] args) { // Creating a HashSet of strings HashSet<string> mySet = new HashSet<string>(); // Inserting elements in HashSet mySet.Add("DS"); mySet.Add("C++"); mySet.Add("Java"); mySet.Add("JavaScript"); // Checking whether mySet is // equal to itself or not Console.WriteLine(mySet.Equals(mySet)); } } Output: True Example 2: CSharp // C# program to if a HashSet object // is equal to another HashSet object using System; using System.Collections.Generic; class Geeks { // Main Method public static void Main(String[] args) { // Creating a HashSet of strings HashSet<string> mySet1 = new HashSet<string>(); // Inserting elements in HashSet mySet1.Add("HTML"); mySet1.Add("CSS"); mySet1.Add("PHP"); mySet1.Add("DBMS"); // Creating a HashSet of integers HashSet<int> mySet2 = new HashSet<int>(); // Inserting elements in HashSet for (int i = 0; i < 5; i++) { mySet2.Add(i * 2); } // Checking whether mySet1 is // equal to mySet2 or not Console.WriteLine(mySet1.Equals(mySet2)); // Creating a HashSet of integers HashSet<int> mySet3 = new HashSet<int>(); // Assigning mySet2 to mySet3 mySet3 = mySet2; // Checking whether mySet3 is // equal to mySet2 or not Console.WriteLine(mySet3.Equals(mySet2)); } } Output: False True Comment More infoAdvertise with us Next Article C# | Check if two HashSet<T> objects are equal K Kirti_Mangal Follow Improve Article Tags : C# CSharp-method CSharp-Generic-HashSet CSharp-Generic-Namespace Similar Reads C# | Check if two SortedSet<T> objects are equal Equals(Object) Method which is inherited from the Object class is used to check if a specified SortedSet<T> object is equal to another SortedSet<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. Ret 2 min read C# | Check if two List objects are equal 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: 2 min read 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. R 2 min read C# | Check if two Tuple Objects are equal A tuple is a data structure which gives you the easiest way to represent a data set. You can also check if the given tuple object is equal to the specified object or not using the Equals Method. This method will return true if the given tuple object is equal to the specified object, otherwise, retur 2 min read C# | Check if two SortedList objects are equal Equals(Object) Method which is inherited from the Object class is used to check whether the specified SortedList object is equal to another SortedList 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 2 min read Like