In C#, we can check if two object values are equal with the Equals() method. This method is used to get a Boolean value that indicates whether or not a certain value is equal to another.
public virtual bool Equals (object obj);
obj: This is the object we pass to the Equals() method to check if it is equal to a particular object or not.
A boolean value is returned. It returns true if two objects are equal, else, a false is returned.
In the example below, we will create some values and check if they are equal to one another, using the Equals() method.
// use Systemusing System;// create classclass EqualityChecker{// main methodstatic void Main(){// create some valuesstring name = "Johnny";string platform = "Edpresso";bool isGreat = true;bool isHard = false;bool isCSharp = true;int num1 = 3 + 4; // = 7int num2 = 5 + 6; // = 13// compare them using// the `Equals()` methodPrintEquals((string)name, (string)platform);PrintEquals(name, name);PrintEquals(isGreat, isHard);PrintEquals(isGreat, isCSharp);PrintEquals(num1, num2);PrintEquals(num1, num1);}// check string objects methodstatic void PrintEquals(object obj1, object obj2){if(obj1.Equals(obj2)){Console.WriteLine("Both of the values are equal");}else{Console.WriteLine("Both of the values are not equal");}}}
In the code given above:
In line 10 to line 16: We create strings, boolean values, and integers. They were created so we can check if some of them are equal to each other.
In line 29, we create a method PrintEquals() that will make use of the Equals() method to compare objects.
In line 20 to line 25, the method we create is called and the variables we created earlier were passed to the method.