Operator Overloading in C#

using System;

class Widget

{

    public int _value;

    public static Widget operator +(Widget a, Widget b)

    {

        // Add two Widgets together.

        // ... Add the two int values and return a new Widget.

        Widget widget = new Widget();

        widget._value = a._value + b._value;

        return widget;

    }

    public static Widget operator ++(Widget w)

    {

        // Increment this widget.

        w._value++;

        return w;

    }

}

class Program

{

    static void Main()

    {

        // Increment widget twice.

        Widget w = new Widget();

        w++;

        Console.WriteLine(w._value);

        w++;

        Console.WriteLine(w._value);

        // Create another widget.

        Widget g = new Widget();

        g++;

        Console.WriteLine(g._value);

        // Add two widgets.

        Widget t = w + g;

        Console.WriteLine(t._value);

        Console.ReadKey();

    }

}