Swift uses the same runtime as the extant Objective-C system, but requires iOS 7 or macOS 10.9 or higher. Swift and Objective-C code can be used in one program, and by extension, C and C++ also. In contrast to C, C++ code cannot be used directly from Swift. An Objective-C or C wrapper must be created between Swift and C++. In the case of Objective-C, Swift has considerable access to the object model, and can be used to subclass, extend and use Objective-C code to provide protocol support. The converse is not true: a Swift class cannot be subclassed in Objective-C.
is swift built on top of objective c?
OPTIONS:
- no
- yes
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Answer: yes

Australian cyclists have ridden in the Tour de France since 1914. In the 1980s, Phil Anderson became the first Australian cyclist to win a stage and wear the yellow jersey. Cadel Evans has been the only Australian cyclist to win the yellow jersey by winning the 2011 Tour de France.
has an australian ever won the tour de france?
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- no
- yes
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Answer: yes

The appointment and confirmation of Justices to the Supreme Court of the United States involves several steps set forth by the United States Constitution, which have been further refined and developed by decades of tradition. Candidates are nominated by the President of the United States and must face a series of hearings in which both the nominee and other witnesses make statements and answer questions before the Senate Judiciary Committee, which can vote to send the nomination to the full United States Senate. Confirmation by the Senate allows the President to formally appoint the candidate to the court.
does the house need to confirm a supreme court justice?
OPTIONS:
- no
- yes
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Answer:
no