Given: What is the result?（）……

单项选择题Given that the current directory is empty, and that the user has read and write privileges to the current, and the following: Which statement is true?（）

A.Compilation fails.
B.Nothing is added to the file system.
C.Only a new file is created on the file system.
D.Only a new directory is created on the file system.
E.Both a new file and a new directory are created on the file system.

单项选择题Given: What is the result?（）

A.true true
B.false true
C.true false
D.false false
E.Compilation fails.
F. An exception is thrown at runtime.

单项选择题Given: What is the output?（）

A.42
B.420
C.462
D.42042
E.Compilation fails.
F.An exception is thrown at runtime.

多项选择题Given: Which two can be results?（）

A. java.lang.RuntimeException: Problem
B. run.java.lang.RuntimeException: Problem
C. End of method.java.lang.RuntimeException: Problem
D. End of method.run.java.lang.RuntimeException: Problem
E. run.java.lang.RuntimeException: Problem End of method.

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 }