单项选择题
What is the result？（）
A.6 B.7 C.10 D.11 E.Compilation fails. F.An exception is thrown at runtime.
单项选择题 Which code， inserted at line 16， correctly retrieves a local instance of a Point object？（）
单项选择题 Which exception or error will be thrown when a programmer attempts to run this code？（）
单项选择题 What is the result？（）
