Given： Which two methods， inserted independently at lin……

多项选择题Given： Which three methods， inserted individually at line 14， will correctly complete class Two？（）

A.int foo（） { /* more code here */ }
B.void foo（） { /* more code here */ }
C.public void foo（） { /* more code here */ }
D.private void foo（） { /* more code here */ }
E.protected void foo（） { /* more code here */ }

单项选择题Given： 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.

单项选择题Given： What is the result？（）

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.

多项选择题Given： 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