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:fooandbararepublicreferencesavailabletomanyotherthreads,fooreferstoaThreadandbarisanObject.Thethreadfooiscurrentlyexecutingbar.wait().Fromanotherthread,whatprovidesthemostreliablewaytoensurethatfoowillstopexecutingwait()?()
A.foo.notify(); B.bar.notify(); C.foo.notifyAll(); D.Thread.notify(); E.bar.notifyAll(); F.Object.notify();
多项选择题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 E.0, 2, 4, 6, 8, 10, 12, 14, 0, 2, 4, 6, 8, 10, 12, 14
单项选择题What is the result?()
A.Compilation fails. B.An exception is thrown at runtime. C.The code executes normally and prints "bar". D.The code executes normally, but nothing prints.
A.Cat B.Dog C.Compilation fails. D.The code runs with no output. E.An exception is thrown at runtime.
单项选择题Giventhatt1isareferencetoalivethread,whichistrue?()
A.The Thread.sleep() method can take t1 as an argument. B.The Object.notify() method can take t1 as an argument. C.The Thread.yield() method can take t1 as an argument. D.The Thread.setPriority() method can take t1 as an argument. E.The Object.notify() method arbitrarily chooses which thread to notify.