Public NotInheritable Class
 Debug

Dim instance As Debug

public sealed class Debug

public ref class Debug sealed

public final class Debug

public final class Debug

 <configuration>
     <system.diagnostics>
        <trace autoflush="true" indentsize="7" />
     </system.diagnostics>
  </configuration>

Shared Function Main(args() As
 String) As Integer
    Debug.Listeners.Add(New TextWriterTraceListener(Console.Out))
    Debug.AutoFlush = True
    Debug.Indent()
    Debug.WriteLine("Entering Main")
    Console.WriteLine("Hello World.")
    Debug.WriteLine("Exiting Main")
    Debug.Unindent()
    Return 0
End Function 'Main

static int Main(string[]
 args)
{
   Debug.Listeners.Add(new TextWriterTraceListener(Console.Out));
   Debug.AutoFlush = true;
   Debug.Indent();
   Debug.WriteLine("Entering Main");
   Console.WriteLine("Hello World.");
   Debug.WriteLine("Exiting Main"); 
   Debug.Unindent();
   return 0;
}

#using <System.dll>
int main( void )
{
   using namespace System;
   using namespace System::Diagnostics;
   Debug::Listeners->Add( gcnew TextWriterTraceListener( Console::Out ) );
   Debug::AutoFlush = true;
   Debug::Indent();
   Debug::WriteLine( "Entering Main" );
   Console::WriteLine( "Hello World." );
   Debug::WriteLine( "Exiting Main" );
   Debug::Unindent();
   return 0;
}