Uri.ReferenceEquals() Method in C# with Examples

Last Updated : 26 May, 2020

Uri.ReferenceEquals() Method is used to check the reference of two specified objects. This method can be overridden and static in nature. So, if a user is going to test the two objects references for equality and he is not sure about the implementation of the Equals method, then he can call the ReferenceEquals method.

Syntax: bool Uri.ReferenceEquals (Uri uri1, Uri uri2);

Parameters:
uri1: It is the first uri to compare.
uri2: It is the second uri to compare.

Return Value: This method returns true if reference of two objects are equal otherwise it returns false.

Below programs illustrate the use of Uri.ReferenceEquals() Method:

Example 1:

C#

// C# program to demonstrate the  
// Uri.ReferenceEquals() Method  
using System;  
using System.Globalization;  
    
class GFG {  
    
     // Main Method  
    public static void Main()  
    {  
        // Declaring and initializing value1  
        Uri  v1 = null;  
    
        // Declaring and initializing value2  
        Uri  v2 = null;  
    
        // using ReferenceEquals(Uri ,  
        // Uri ) method  
        bool status = Uri.ReferenceEquals(v1, v2);  
    
        // checking the status  
        if (status)  
            Console.WriteLine("null is equal to null");  
        else
            Console.WriteLine("null is not equal to null");  
    }  
}

Output:

null is equal to null

Example 2:

C#

// C# program to demonstrate the  
// Uri.ReferenceEquals() Method  
using System;  
using System.Globalization;  
    
class GFG {  
    
    // Main Method  
    public static void Main()  
    {  
    
        Uri  p = new Uri("http://www.geeksforgeeks.org/index.htm");  
        Uri  q = null;  
    
        // calling get() method  
        get(p, null);  
    
        // assigning p to q  
        q = p;  
        get(p, q);  
        get(q, null);  
    }  
    
    // defining get() method  
    public static void get(Uri  v1,  
                           Uri  v2)  
    {  
    
        // using ReferenceEquals() method  
        bool status = Uri.ReferenceEquals(v1, v2);  
    
        // checking the status  
        if (status)  
            Console.WriteLine("{0} is equal to {1}",  
                                            v1, v2);  
        else
            Console.WriteLine("{0} is not equal to {1}",  
                                                v1, v2);  
    }  
}

Output:

http://www.geeksforgeeks.org/index.htm is not equal to 
http://www.geeksforgeeks.org/index.htm is equal to http://www.geeksforgeeks.org/index.htm
http://www.geeksforgeeks.org/index.htm is not equal to

Note: Here, null will never be printed in the output.

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