单项选择题
Given: What is the result?（）
A.r，t，t， B.r，e，o， C.Compilation fails. D.An exception is thrown at runtime.
单项选择题 Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（）
单项选择题 Given: What is the result?（）
