[Flight Sim Guy]

I know the title might sound repetitive, but what I want to know is what is the best code to begin with since I want to eventually write code for Apple products, MSO, and Quickbooks.

 

[Special2God]

By MSO I assume you mean Microsoft Office?
(I ask because there are so many acronyms for MSO).

Apple uses Objective-C
Microsoft Office uses C# and Visual Basic (VB)
And Quickbooks uses a variety of languages

Looking over the list, I would suggest C# or Objective-C, but not C++ since it is a bit older and the syntax is different than either C# or Objective-C.

Here's a link to a discussion of C# and Objective-C.
My primarily language is Java, so I won't try to recommend any of these languages from my experience, but I would point you toward C# or Objective-C.

 

[Flight Sim Guy]

What would be the best way to learn C# or Objective C?

 

[AceInfinity]

The answer to that question is through documentation and trial and error. Reviewing code that others have put together to help you understand it's syntax as well.

If you're into anything Apple, it's usually Objective-C as mentioned. Microsoft uses C# and C++ for the main part.

Adobe is big on using C++.