using System;

​

public class MyClass : IDisposable

{

    public void Dispose()

    {

        Console.WriteLine("Hello"); 

    }

}

​

public class Program

{

    public static void Main()

    {

        var obj = new MyClass();

        using (obj)

        {

            Console.WriteLine("Do stuff");          

        }

        Console.WriteLine("Hello2");

    }

}