单项选择题
Given： Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection？（）
A.Line 16 B.Line 17 C.Line 18 D.Line 19
Given： What is the result？（）A.ExceptionB.A NullPointer...
Given： What is the result？（）
A.Exception B.A NullPointerException is thrown at runtime. C.Compilation fails because of an error in line 20. D.Compilation fails because of an error in line 14.
Given： What is the result？（）A.nullB.zeroC.someD.Compil...
A.null B.zero C.some D.Compilation fails. E.An exception is thrown at runtime.
Given： What is the result？（）A.2B.24C.234D.246E.2346
A.2 B.24 C.234 D.246 E.2346
