C#

public C( double p )
{
    local_p = p;
}

public C( string S, double p ) : this( p )
{
    local_s = s;
}

class MyClass : AnotherClass {<br />
<br />
private int b;<br />
<br />
// Calls the base constructor:<br />
public MyClass(int a, int b) : base(a) {<br />
  this.b = b;<br />
}<br />
<br />
// Calls the MyClass(int,int) constructor:<br />
public MyClass(int a) : this(a, 42) {}<br />
<br />
// Calls the MyClass(int) constructor:<br />
public MyClass(bool a) : this(a?1:0) {}<br />
<br />
}

class Form1
{
    private delegate void SetLabel1TextDel();
    //....
public Form1()
{
    InitializeComponent();
    Thread thrd = new Thread( ThreadStart(this.MyMethode()));
    thrd.Start();
}
private void MyMethode()
{
    if (this.InvokeRequired)
    {
         this.Invoke(new SetLabel1TextDel(this.SetLabel1Text));
    }
    else
    {
         this.SetLabel1Text();
    }

    Thread.Sleep(1000);
}

private void SetLabel1Text()
{
    label1.Text = DateTime.Now.ToString();
}