9. Wrong. It's not an Apple invention at all and it's really nothing like C++.
Apple adopted it as the de-facto language for OS X's GUI when they leveraged NextStep. It's basically just Smalltalk-style messaging added to standard C, whereas the C++ OOP model is based on Simula. A good description of Objective-C can be found in Wikipedia.
Apple adopted it as the de-facto language for OS X's GUI when they leveraged NextStep. It's basically just Smalltalk-style messaging added to standard C, whereas the C++ OOP model is based on Simula. A good description of Objective-C can be found in Wikipedia.