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 E.The object is NOT a candidate for garbage collection.
单项选择题What is the result?()
A.harrier B.shepherd C.retriever D.Compilation fails E.retriever harrier F.An exception is thrown at runtime
单项选择题When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()
A.Line 5 B.Line 6 C.Line 7 D.Line 8 E.Line 9 F.Line 10
A.null B.zero C.some D.Compilation fails. E.An exception is thrown at runtime.
多项选择题Which two statements are true?()
A.Foo.beta() is a valid invocation of beta(). B.Foo.alpha() is a valid invocation of alpha(). C.Method beta() can directly call method alpha(). D.Method alpha() can directly call method beta().
单项选择题What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?()
A.It is true that j==i. B.It is false that j==i. C.An exception is thrown at runtime. D.Compilation fails because of an error in line 13.