What is generic?

Generic class allows to write such a class which is data type independent and its method can work with any data type.

Life without generic

class CompareClass

{

    public bool Compare(string x, string y)

    {

        if (x.Equals(y))

        return true;

        else

        return false;

    }

    public bool Compare(int x, int y)

    {

        if (x.Equals(y))

        return true;

        else

        return false;

    }

}

Life with generic

class CompareGenericClass<T>

{

    public bool Compare(T x, T y)

    {

        if (x.Equals(y))

        return true;

        else

        return false;

    }

}