Description: IComparer is an interface in C# that defines a method for comparing two objects. This interface is part of the System.Collections namespace and is primarily used to provide a way to customize the sorting of collections of objects. By implementing IComparer, developers can define specific criteria for comparing objects, allowing for more granular control over how data is sorted and organized. The interface includes a single method, Compare, which takes two objects as parameters and returns an integer value indicating their relationship: a negative value if the first object is less than the second, zero if they are equal, and a positive value if the first is greater. This functionality is especially useful in situations where objects are not of primitive types, such as in collections of custom objects, where a specific order based on properties of those objects is required. IComparer is fundamental in object-oriented programming in C#, as it allows developers to create custom sorting algorithms that fit the specific needs of their applications.
