Generics in C#.NET

using System;
using System.Collections.Generic;
namespace GenericsDemo
{
class Program
{
static void Main(string[] args)
{
//Equal method for numbers only
EqualNumber objEqualNumber = new EqualNumber();
Console.WriteLine("Number Equals: " + objEqualNumber.IsEqual(5, 6));
//Equal method for string only
EqualString objEqualString = new EqualString();
Console.WriteLine("String Equals: " + objEqualString.IsEqual("Hello", "Hello"));
//Equal method for both number and string using object parameter
//This method use boxing and unboxing
EqualObject objEqualObject = new EqualObject();
Console.WriteLine("Number Equals: " + objEqualObject.IsEqual(10, 10));
Console.WriteLine("String Equals: " + objEqualObject.IsEqual("Hello","Hello"));
//This code will compile and execute successfully it is not type safety
Console.WriteLine("String Equals: " + objEqualObject.IsEqual("Hello", 10));
//This use Generics methods to compare equallity using strong type safety
//This method dose not use boxing and unboxing
EqualGenerics objEqualGenerics = new EqualGenerics();
Console.WriteLine("Number Equals: " + objEqualGenerics.IsEqual<int>(10, 10));
Console.WriteLine("String Equals: " + objEqualGenerics.IsEqual<string>("Hello","Hello"));
Console.ReadLine();
}
}
//objects
public class EqualObject
{
public bool IsEqual(object value1, object value2)
{
return value1.Equals(value2);
}
}
//number
public class EqualNumber
{
public bool IsEqual(int value1, int value2)
{
return value1.Equals(value2);
}
}
//string
public class EqualString
{
public bool IsEqual(string value1, string value2)
{
return value1.Equals(value2);
}
}
//Generics
public class EqualGenerics
{
public bool IsEqual<T>(T value1, T value2)
{
return value1.Equals(value2);
}
}
}

Advantage of Generics