What is Generics in C#? Example.

Question 1. What Is Generics?

Answer :

Generics are the most powerful features introduced in C# 2.0. It is a type-safe data structure that allows us to write codes that works for any data types.

Question 2. What Is A Generic Class?

Answer :

A generic class is a special kind of class that can handle any types of data. We specify the data types during the object creations of that class. It is declared with the bracket <>. For example consider the following Comparer class, which has a method that compare two value and returns as Boolean output.

public class Comparer

{

    public bool Compare(Unknown t1, Unknown t2)

  {  

         if (t1.Equals(t2))

      {

            return true;

        }

        else

        {

            return false;

        }

    }

}

Comparer oComparerInt = new Comparer();

Console.WriteLine(oComparerInt.Compare(10, 10));

Comparer oComparerStr = new Comparer();

Console.WriteLine(oComparerStr.Compare("jdhsjhds", "10"));

Question 3. Why We Should Use Generics?

Answer :

Generic provides lot of advantages during programming. We should use generics for the following reasons:

It allows creating class, methods which are type-safe

It is faster. Because it reduce boxing/un-boxing

It increase the code performance

It helps to maximize code reuse, and type safety

Share: