Uri.Referenceequals() Method In C#

In this article, we will discuss the Uri.ReferenceEquals method in C# with its syntax, parameters, and examples.

What is the Uri.ReferenceEquals method?

In C#, the Uri.ReferenceEquals method is not a standard method provided by the .NET Framework's Uri class. The ReferenceEquals method is a method from the C# Object class. It will give information on the Uri class .

The Uri class in C# belongs to the System namespace and represents a Uniform Resource Identifier (URI). It allows us to interpret, alter, and compare URIs easily. URIs can represent a variety of resources, including URLs and local file paths.

Syntax:

It has the following syntax:

bool Uri.ReferenceEquals(Uri uri_1, Uri uri_2)

Parameters:

uri_1: It is the initial URI to compare.

uri_2: It is an additional URI to compare.

Return Value:

This method gives a true value if two objects' references are equal; if not, it returns false.

Example 1:

Let us take an example to illustrate the Uri.ReferenceEquals method in C#.

using System; 
using System.Globalization; 
	
class ReferenceEqual{ 
	
	// Main Method 
	public static void Main() 
	{ 
		// the initial value1 declaration
		Uri a_1 = null; 
	
		// the initial value2 declaration
		Uri a_2 = null; 
	
		// the ReferenceEquals(Uri , 
		// Uri ) method
		bool result = Uri.ReferenceEquals(a_1, a_2); 
	
		//The condition to check
		if (result) 
			Console.WriteLine("The null value is equal to the null"); 
		else
			Console.WriteLine("The null value is not equal to the null"); 
	} 
}

Output:

The null value is equal to the null

Example 2:

Let us take another example to illustrate the Uri.ReferenceEquals method in C#.

using System; 
using System.Globalization; 
class ReferenceMethod { 
	// Main Method 
	public static void Main() 
	{ 
	
		Uri a1 = new Uri("https://www.hello world.com/index.htm"); 
		Uri x1 = null; 
	
		// the get() method
		get(a1, null); 
	
		// the value of a1 is assigned to x1
		x1 = a1;  
		get(a1, x1); 
		get(x1, null); 
	} 
	// the get() method for result
	public static void get(Uri va_1, Uri va_2) 
	{ 
	
	//the ReferencesEquals() method
		bool result = Uri.ReferenceEquals(va_1, va_2); 
	
		// the result condition
		if (result) 
			Console.WriteLine("{0} is equal to {1}",  va_1, va_2); 
		else
			Console.WriteLine("{0} is not equal to {1}", va_1, va_2); 
	} 
}

Output:

https://www.hello world.com/index.htm is not equal to 
https://www.hello world.com/index.htm is equal to https://www.hello world.com/index.htm
https://www.hello world.com/index.htm is not equal to

Advantages of the Uri.ReferenceEquals Method

There are several advantages of the Uri.ReferenceEquals Method in C#. Some main advantages of the Uri.ReferenceEquals Method are as follows:

1. Reference comparison:

The programmers may use the ReferenceEquals method to compare two objects at the reference level. It is useful for determining whether two variables reference the same object reference in memory.

1. Null Handling:

The ReferenceEquals method handles null values effectively. If one or both of the items under comparison are null, the function returns true. It can make null-checking logic simpler in certain cases.

1. Performance:

Reference equality tests are quicker than value equality checks because they directly compare memory locations. The ReferenceEquals method is a useful function for reference comparison in scenarios where speed is crucial.

1. Memory Management:

Effective memory management requires understanding reference equality. It assists developers in ensuring that they are dealing with the correct object instances, especially for cases involving object pooling or duplicating instances.