Java认证模考试题（四

Question: 21
outer: for(int i=0;i< 3; i++)

inner: for(int j=0;j< 2;j++)

{

if(j==1) continue outer;

System.out.println(j+ ?and ?+i);

}

B. 0 and 1

C. 0 and 2

D. 1 and 0

E. 1 and 1

F. 1 and 2

G. 2 and 0

H. 2 and 1

I. 2 and 2

Explanation: 

Correct Answer: A,B,C 21 of 60

Question: 22

switch (m)

{

case 0: System.out.println(Condition 0);

case 1: System.out.println(Condition 1);

case 2: System.out.println(Condition 2);

case 3: System.out.println(Condition 3);break;

default: System.out.println(Other Condition);

Which values of m will cause Condition 2 is output?

B. 1

C. 2

D. 3

E. 4

F. None

Explanation: 

Correct Answer: A,B,C 22 of 60

Question: 23
A. init()

B. start()

C. stop()

D. destroy()

Explanation: 

Correct Answer: B 23 of 60 |||

Question: 24
A. join()

B. resume()

C. notify()

D. notifyAll()

E. high priority thread is ready

Explanation: 

Correct Answer: C,D 24 of 60

Question: 25
A. start()

B. init()

C. run()

D. main()

E. synchronized()

Explanation: 

Correct Answer: C 25 of 60

Question: 26
A. native

B. static

C. synchronized

D. abstract

Explanation: 

Correct Answer: C 26 of 60

Question: 27
A. private

B. public

C. protected

D. protect

E. friend

Explanation: 

Correct Answer: A,B,C 27 of 60 |||

 Question: 28

If a member variable of a class can be accessible only by the same package, which modifier should be used?

B. public

C. protected

D. no modifier

E. final

Explanation:

No modifier is the default access level. The default modifier means to be accessible by the classes in the same package.

Correct Answer: D 28 of 60