I have watched Congressman Keating since his election. He is an strong and dedicated to constituents. I am a Realtor who believes in protecting property rights of homeowners. Congressman Keating understands the housing issues such as Flood insurance, protecting the Mortgage Interest Tax Deduction and other such issues.
Judging for the closed-ness of Apple, you probably won't get much credible answer from Apple's own people. OS X and iOS are primarily written in Objective-C with some C++ in between (e.g. IOKit, WebKit, etc) and probably some C as well for the kernel stuff. However looking at Apple's software engineering jobs vacancies [1], these are also relevant programming languages at Apple: Java.
Q: apple id format for using find my iphone. How do i use my existing apple id for setting up the Find My Iphone? the set up screen says to input the apple id as xxx@example.com, ie in an email address format, whereas my apple id is not in the xxx@yyy.zzz format. it is only xxx.