单项选择题

Click the Exhibit button. What is the result？（）……

Click the Exhibit button.

What is the result？（）

A.The code will deadlock.
B.The code may run with no output.
C.An exception is thrown at runtime.
D.The code may run with output "0 6".
E.The code may run with output "2 0 6 4".
F.The code may run with output "0 2 4 6".

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热门试题

多项选择题Given： Which two statements are true？（）

A.The output could be 8-1 7-2 8-2 7-1
B.The output could be 7-1 7-2 8-1 6-1
C.The output could be 8-1 7-1 7-2 8-2
D.The output could be 8-1 8-2 7-1 7-2

单项选择题Given： foo and bar are public references available to many other threads. foo refers to a Thread and bar is anObject. The thread foo is currently executing bar.wait（）. From another thread，what provides the most reliable wayto ensure that foo will stop executing wait（）？

A.foo.notify（）；
B.bar.notify（）；
C.foo.notifyAll（）；
D.Thread.notify（）；
E.bar.notifyAll（）；

单项选择题Click the Exhibit button. Which two are possible results？（）

A.0， 2， 4， 4， 6， 8， 10， 6
B.0， 2， 4， 6， 8， 10， 2， 4
C.0， 2， 4， 6， 8， 10， 12， 14
D.0， 0， 2， 2， 4， 4， 6， 6， 8， 8， 10， 10， 12， 12， 14， 14

单项选择题Given: What is the result？（）

A.1 2 3
B.Compilation fails because of an error in line 12.
C.Compilation fails because of an error in line 13.
D.Compilation fails because of an error in line 14.
E.A ClassCastException is thrown at runtime.

单项选择题Given： What is the result？（）

A.TestA
B.TestB
C.Compilation fails.
D.An exception is thrown at runtime.