Exam 1z0-809 topic 1 question 166 discussion

Actual exam question from Oracle's 1z0-809

Question #: 166
Topic #: 1

Given:
and the code fragment:

The threads t1 and t2 execute asynchronously and possibly prints ABCA or AACB.
You have been asked to modify the code to make the threads execute synchronously and prints ABC.
Which modification meets the requirement?

A. start the threads t1 and t2 within a synchronized block.
B. Replace line n1 with: private synchronized int count = 0;
C. Replace line n2 with: public synchronized void run () {
D. Replace line n2 with: volatile int count = 0;

Show Suggested Answer

Suggested Answer: A 🗳️

by JME_CHG at March 5, 2021, 10:12 p.m.

Comments

Submit Cancel

JME_CHG

Highly Voted 3 years, 9 months ago

C is correct, A does nothing...

upvoted 7 times

...

steefaand

Most Recent 10 months, 4 weeks ago

Selected Answer: C

C is answer.

upvoted 1 times

...

iSnover

10 months, 4 weeks ago

Selected Answer: C

The answer is letter C, answer A does not print anything on the screen and the run() method needs to be syncronized.

upvoted 1 times

...

WilsonKKerll

2 years, 9 months ago

public void run() { while(count < src.length){ System.out.println(src[count++]); } }

upvoted 1 times

...

WilsonKKerll

2 years, 9 months ago

I think C is answer.

upvoted 2 times

...