Sorted:

Polymorphic Ruby SimpleDelegator-Collection of common programming errors

I need some help using Threads in C#-Collection of common programming errors

Is C# and Java duck-typed?-Collection of common programming errors

Thread-Safeness of FloatToStr / DateToStr-Collection of common programming errors

How can I draw a solid square in BlackBerry?-Collection of common programming errors

MWE2 Workflow component with Scala language-Collection of common programming errors

how to create a new product in Commerce Server 2009 in C#-Collection of common programming errors

JSP Reference Books [closed]-Collection of common programming errors

What a Syntax of declaring API function in C++?-Collection of common programming errors

Upgrading to Web API 2 breaks application-Collection of common programming errors