Exam 1z0-809 topic 1 question 136 discussion

Actual exam question from Oracle's 1z0-809

Question #: 136
Topic #: 1

[All 1z0-809 Questions]

Given the code fragment:

What is the result?

A. 4000 : 2000
B. 4000 : 1000
C. 1000 : 4000
D. 1000 : 2000

Show Suggested Answer

Suggested Answer: B 🗳️

by pul26 at Dec. 9, 2020, 8:33 a.m.

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pul26

Highly Voted 4 years ago

Answer is A, tested Deque<Integer> nums = new ArrayDeque<>(); nums.add(1000); System.out.println(nums); nums.push(2000); System.out.println(nums); nums.add(3000); System.out.println(nums); nums.push(4000); System.out.println(nums); Integer i1 = nums.remove(); System.out.println(nums); Integer i2 = nums.pop(); System.out.println(nums); System.out.println(i1 + ":" + i2);

upvoted 7 times

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steefaand

Most Recent 10 months, 4 weeks ago

Selected Answer: A

A is correct. Tested. Firstly 1000 is added (at the back), then 2000 is added to front, then 3000 is added to back and finally 4000 to front, so deque looks like 4000-2000-1000-3000 and remove and pop do the same thing which is take value from from of deque and those values are 4000 and 2000 which are printed.

upvoted 1 times

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