Given:

Which two can be results?（）

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
E.wrap the for loop code inside the go() method with a synchronized block synchronized(this){ //for loop code here }

单项选择题Click the Exhibit button. What is the output if the main() method is run?（）

A.4
B.5
C.8
D.9
E.Compilation fails.
F.An exception is thrown at runtime.
G.It is impossible to determine for certain.

单项选择题Given: 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".

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.B
B.The code runs with no output.
C.Compilation fails because of an error in line 12.
D.Compilation fails because of an error in line 15.
E.Compilation fails because of an error in line 18.