C#

public partial class Form1 : Form
    {
        public event EventHandler MyEvent;

        public Form1()
        {
            InitializeComponent();
            this.IsMdiContainer = true;

            ChildForm f = new ChildForm(this);
            f.MdiParent = this;
            f.Size = new Size(100, 100);
            f.Text = "Child form";
            f.BackColor = Color.Black;
            f.Show();

            this.SizeChanged += new EventHandler(Form1_SizeChanged);
        }

        void Form1_SizeChanged(object sender, EventArgs e)
        {
            if (MyEvent != null)
                MyEvent(this, EventArgs.Empty);      
        }

    }

public partial class ChildForm : Form
    {
        public ChildForm(Form1 f)
        {
            f.MyEvent += new EventHandler(f_MyEvent);
            InitializeComponent();
        }

        void f_MyEvent(object sender, EventArgs e)
        {
            Thread.Sleep(1000);
            this.Close();
        }
    }

public delegate void OnTestEvent(object sender, EventArgs e);
public partial class Form1 : Form
{
    public static event OnTestEvent TestEvent;
    public Form1()
    {
        InitializeComponent();
        this.IsMdiContainer = true;
        timer1.Start();
        Shown += new EventHandler(Form1_Shown);
    }

    void Form1_Shown(object sender, EventArgs e)
    {
        Form2 frm2 = new Form2();
        frm2.MdiParent = this;
        frm2.Show();
        Form3 frm3 = new Form3();
        frm3.ShowDialog();
        frm3.Dispose();
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        if (null != TestEvent)
        {
            TestEvent(this, EventArgs.Empty);
        }
    }
}

public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
        FormClosing += new FormClosingEventHandler(Form2_FormClosing);
        Form1.TestEvent += new OnTestEvent(Form1_TestEvent);
    }

    void Form2_FormClosing(object sender, FormClosingEventArgs e)
    {
        Form1.TestEvent -= Form1_TestEvent;
    }

    void Form1_TestEvent(object sender, EventArgs e)
    {
        Console.WriteLine("Form2 heard it");
    }
}

public partial class Form3 : Form
{
    public Form3()
    {
        InitializeComponent();
        FormClosing += new FormClosingEventHandler(Form3_FormClosing);
        Form1.TestEvent += new OnTestEvent(Form1_TestEvent);
    }

    void Form3_FormClosing(object sender, FormClosingEventArgs e)
    {
        Form1.TestEvent -= Form1_TestEvent;
    }

    void Form1_TestEvent(object sender, EventArgs e)
    {
        Console.WriteLine("Form3 heard it");
    }
}

Console.ReadLine();

Console.WriteLine("String");

static void Main(string[] args)
{
    double amount = 0.0;
    double change;
    Console.Write("Enter the amount: ");
    Double.TryParse(Console.ReadLine(),out amount);
    change = (amount - (int)amount) * 100;
    int quarters = (int)change / 25;
    int dimes = ((int)change % 25) / 10;
    int nickles = (((int)change % 25)% 10) / 5;
    int cents = ((int)change % 5);
    Console.WriteLine(
      String.Format("Quarters:{0} \nDimes:{1} \nNickles:{2} \nCents:{3}",
        quarters, dimes, nickles, cents));
    Console.ReadLine(); 
}

Paul Conrad wrote:

Yep. Certainly can see it happening. Dare I mention it would probably show up on RAC?