多项选择题
Which two changes， taken together， would guarantee the output： 1， 2， 3， 4， 5？（）
A.move the line 12 print statement into the foo（） method
B.change line 7 to public synchronized void go（）{
C.change the variable declaration on line 2 to private volatile int x；
D.wrap the code inside the foo（） method with a synchronized（this） block
E.wrap the for loop code inside the go（） method with a synchronized block synchronized（this）{//for loop code here}
相关考题
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多项选择题
Whichthreewillcompileandrunwithoutexception？（）
A.private synchronized Object o；
B.void go（）{ synchronized（）{/* code here */}
C.public synchronized void go（）{/* code here */}
D.private synchronized（this） void go（）{/* code here */}
E.void go（）{ synchronized（Object.class）{/* code here */}
F.void go（）{ Object o = new Object（）； synchronized（o）{/* code here */} -
单项选择题
What can be a result？（）
A.Compilation fails.
B.An exception is thrown at runtime.
C.The code executes and prints "StartedComplete".
D.The code executes and prints "StartedComplete0123".
E.The code executes and prints "Started0123Complete". -
多项选择题
Whichtwoof statementsaretrue？（）
A.It is possible to synchronize static methods.
B.When a thread has yielded as a result of yield（）， it releases its locks.
C.When a thread is sleeping as a result of sleep（）， it releases its locks.
D.The Object.wait（） method can be invoked only from a synchronized context.
E.The Thread.sleep（） method can be invoked only from a synchronized context.
F.When the thread scheduler receives a notify（） request， and notifies a thread， that thread immediately releases its lock.
