Is there a search routine on this forum. I couldn't find one. There are too many messages to go through if one has a query and doesn't want to put up one since it has been answered before (hopefully!).
Scroll down to the bottom of the page, there is a Google search. Just enter the name of the forum you want to search and your keywords. For instance, if you are searching for posts dealing with constructors, type: "Programmer Certification" constructor